imageRAID_160.book Page 1 Friday, November 14, 2003 4:14 PM
U S E R ' S
G U I D E
SCSI Series
RAID STORAGE SYSTEM
imageRAID_160.book Page 2 Friday, November 14, 2003 4:14 PM
imageRAID_160.book Page 3 Friday, November 14, 2003 4:14 PM
U S E R ' S
G U I D E
SCSI Series
RAID STORAGE SYSTEM
imageRAID_160.book Page 4 Friday, November 14, 2003 4:14 PM
Fujitsu Europe Limited
Restricted Rights and Liability
No part of this manual may be reproduced, stored in a retrieval system, or transmitted, in any form or by any
means, electronic, mechanical, recording, or otherwise, in whole or part, without prior written permission from
Fujitsu Europe Limited.
Fujitsu Europe Limited shall not be liable for any damages or for the loss of any information resulting from the
performance or use of the information contained herein. Your rights to the software are governed by the license
agreement included with any accompanying software. Fujitsu Europe Limited reserves the right to periodically
revise this manual without notice. Product features and specifications described are subject to change without
notice.
Copyright
Fujitsu Europe Limited
Hayes Park Central
Hayes End Road
Hayes, Middlesex, England UB4 8FE
Copyright © 2003 Fujitsu Europe Limited. All rights reserved.
imageRAID and the imageRAID logo are registered trademarks of Fujitsu Europe Limited, Fujitsu is a registered
trademark of Fujitsu Limited.
Other company and product names herein may be trademarks or registered trademarks of their respective
companies.
Agency Notes
!
WARNING:
Drives and controller/adapter cards described in this manual should only be installed in UL-listed and CSA
certified computers that give specific instructions on the installation and removal of accessory cards (refer to your
computer installation manual for proper instructions).
ATTENTION:
Les lecteurs et cartes contrôleurs décrits ici ne doivent être montés que sur des ordinateurs homologués (UL et
CSA) et livrés avec des manuels contenant les instructions d’installation et de retrait des accessoires. Reportezvous au manuel d’installation de votre ordinateur.
SERVICE NOTE: Remove the power cables prior to servicing this equipment.
imageRAID_160.book Page i Friday, November 14, 2003 4:14 PM
Contents
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . .
Components . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power System . . . . . . . . . . . . . . . . . . . . . . . . .
Standard AC Hot Swappable Power Supplies .
Optional DC Hot Swappable Power Supplies .
Cooling Fan Module . . . . . . . . . . . . . . . . . . . .
SAF-TE Disk I/O Card . . . . . . . . . . . . . . . . . . .
SCSI SAF-TE Cluster Card . . . . . . . . . . . . . . . .
Spin-Up Settings . . . . . . . . . . . . . . . . . . . . . .
Host SCSI I/O Card . . . . . . . . . . . . . . . . . . . . .
Single Bus Module . . . . . . . . . . . . . . . . . . . . .
imageRAID Controllers . . . . . . . . . . . . . . . . . .
RS-232 Service Ports . . . . . . . . . . . . . . . . . . . .
Control and Monitoring . . . . . . . . . . . . . . . . . .
Status Indicator LEDs . . . . . . . . . . . . . . . . . . . .
Power-On LED . . . . . . . . . . . . . . . . . . . . . . .
Channel Status LED. . . . . . . . . . . . . . . . . . . .
Power Supply Status . . . . . . . . . . . . . . . . . . .
Fan Status. . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . .
2
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2
3
3
4
4
5
7
9
10
12
13
14
15
16
17
18
18
18
18
18
19
19
Theory of Controller Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Operating Modes Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stand-Alone Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active-Active Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
21
23
26
i
imageRAID_160.book Page ii Friday, November 14, 2003 4:14 PM
Table of Contents
Active-Passive Mode . . . . . . . . . . . . . . . . . . . . . . . . .
Understanding Mirrored Operations . . . . . . . . . . . . .
A Word about Clustering . . . . . . . . . . . . . . . . . . . . . .
Minimizing Downtime for Maximum Data Availability
How Available are Clusters? . . . . . . . . . . . . . . . . . . .
Application of Availability . . . . . . . . . . . . . . . . . . . . .
3
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82
84
86
Monitoring Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Enclosure Component Monitoring . . . . . . . . . . . . . . . . . . . . . . .
Status Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power-On LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ii
35
36
36
39
41
43
45
45
46
46
51
54
56
59
63
64
66
69
74
76
79
80
80
Accessing the imageRAID Controllers . . . . . . . . . . . . . . . . . . . . . . 81
Accessing the Disk Array Administrator Software/VT-100 . . . . . .
Menu System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Updating imageRAID Controller Firmware . . . . . . . . . . . . . . . . .
5
29
31
32
32
34
34
Setup and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage System Detailed Installation . . . . . . . . . . . . . . . . . . . .
Installing the Storage System Enclosure into the Rack Cabinet
Installing the Storage System into the Tower Stand . . . . . . . .
Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . .
Cabling the DC Power Supplies . . . . . . . . . . . . . . . . . . . . .
Before You Continue... . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Note for Microsoft Windows 2000/2003 Installations . .
Enclosure Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .
imageRAID IRS-JBOD - 12 Drive Configuration . . . . . . . . . .
imageRAID IRS-JBOD - 24 Drive Configuration . . . . . . . . . .
imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration .
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration .
imageRAID IRS-1U160 - 36 Drive Configuration . . . . . . . . . .
Topology Host Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stand-Alone Single Port:Host Cabling . . . . . . . . . . . . . . . . .
Stand-Alone Dual Port:Host Cabling . . . . . . . . . . . . . . . . . .
Active-Active Single Port:Host Cabling. . . . . . . . . . . . . . . . .
Active-Passive Dual Port:Host Cabling . . . . . . . . . . . . . . . . .
Single Bus Clustering Configuration . . . . . . . . . . . . . . . . . .
Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Powering On the Storage System . . . . . . . . . . . . . . . . . . . . . .
Powering Off the Storage System . . . . . . . . . . . . . . . . . . . . . .
4
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89
90
90
imageRAID_160.book Page iii Friday, November 14, 2003 4:14 PM
Table of Contents
Channel Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fan Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Activity LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LED Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
One-Touch Annunciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enclosure SAF-TE Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . .
Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware
Enclosure Fan Speed Control . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFTE Commands Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
General Enclosure Problems . . . . . . . . . . . .
Common SCSI Bus Problems . . . . . . . . . . . .
Terminal Emulator and COM Port Problems .
Host SCSI Channel Problems . . . . . . . . . . . .
Device SCSI Channel Problems . . . . . . . . . .
Problems During Bootup . . . . . . . . . . . . . . .
Controller Problems . . . . . . . . . . . . . . . . . . .
Common Problems and Interpreting the LEDs
Warning and Error Events . . . . . . . . . . . . . .
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . .
Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disk Errors . . . . . . . . . . . . . . . . . . . . . . . . .
Disk Channel Errors . . . . . . . . . . . . . . . . . . .
7
90
90
90
91
92
92
92
93
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105
107
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109
109
112
113
113
114
115
115
116
116
117
118
119
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Removing the Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Cooling Fans . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing an AC Power Supply . . . . . . . . . . . . . . . . . . . . . . .
Replacing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . .
Replacing a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card
Replacing the Host SCSI I/O Card . . . . . . . . . . . . . . . . . . . . .
Replacing a imageRAID Controller . . . . . . . . . . . . . . . . . . . .
Replacing a “Killed” Controller When in Active-Active/ActivePassive Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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121
123
125
127
129
131
133
135
..
..
136
137
iii
imageRAID_160.book Page iv Friday, November 14, 2003 4:14 PM
Table of Contents
A
Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B
Port Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
VHD/CI SCSI Connectors . . . . . . . .
SAF-TE Service Port . . . . . . . . . . . .
imageRAID Controller Service Ports .
Null-Modem Cable . . . . . . . . . . . . .
DC Power Supply Connector Pinout
C
141
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145
148
148
149
150
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Compliance Information Statement . . . . . . . . . . . . .
FCC Class A Radio Frequency Interference Statement
Class A Taiwanese Statement . . . . . . . . . . . . . . . . . .
Class A Japanese Statement . . . . . . . . . . . . . . . . . . .
CE Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Cord Selection . . . . . . . . . . . . . . . . . . . . . . .
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151
152
153
153
153
154
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
iv
imageRAID_160.book Page v Friday, November 14, 2003 4:14 PM
Preface
About this Manual
Welcome
Congratulations on the purchase of your new imageRAID SCSI Series Storage
System from Fujitsu Europe Limited. The imageRAID SCSI Series is a very
high-performance fully fault-tolerant SCSI JBOD and RAID based storage system.
It’s unique 2U design is optimized to fit in the compact space of today’s data
center rack enclosures and as a deskside tower system.
®
At its core is the imageRAID SCSI JBOD storage enclosure which supports up to
twelve hot pluggable 1-inch high Ultra320 or Ultra160 disk drives all in a 2U
(3.47-inch) form factor enclosure. Full component redundancy is provided through
hot pluggable cooling fan module and independent power supplies. RAID
functionality is provided through an embedded Ultra160-to-Ultra160 SCSI RAID
Controller. The imageRAID SCSI RAID-based storage systems are available in two
model configurations, either as a single controller configuration designed for
Stand-Alone topologies, or dual controllers configuration for Active-Active or
Active-Passive topologies.
Product Identification
Storage Enclosure
Number of Controllers
Model of Controller
IRS-JBOD
0
JBOD
IRS-1U160xx-xx
1
imageRAID Controller (JSS122)
IRS-2U160xx-xx
2
imageRAID Controller (JSS122)
v
imageRAID_160.book Page vi Friday, November 14, 2003 4:14 PM
About this Manual
This user’s guide is your complete documentation to set up the storage system
hardware, add components, cable the storage system components, replace parts,
and diagnose/repair your system.
For information on the software control, management and configuration, refer to
one of the following: VT-100 Software Guide or the AdminiStor Software Guide.
Features
The imageRAID SCSI Series Storage Systems are designed for mission critical
applications requiring the highest performance with uncompromised data
reliability, such as mid-range and enterprise server storage. They maintain
exceptionally high throughput and are ideally suited for high bandwidth data
intensive applications, such as electronic commerce, digital video, CAD, seismic
research, digital pre-press, and 3-D imaging.
The following are major features of the imageRAID SCSI Series Storage Systems:
■
Ultra160 SCSI storage system enclosure.
■
Ultra160-to-Ultra160 SCSI RAID Controller for RAID-based systems.
■
Supports up to 12 drives in JBOD mode and 36 drives in RAID
configurations.
■
A standard AC power supply with an option for a redundant second power
supply.
■
Optional DC power supply with an option for a redundant second power
supply.
■
Designed to fit standard 19-inch rack enclosures or a deskside tower.
Sequential data transfers from disk arrays at over 320 MB per second
sustained in JBOD mode and 160 MB per second with the RAID Controller
option installed.
■
vi
Features
■
Greater than 18,000 IOPs capability from a single controller.
■
Active-Active failover with dual hot-pluggable controllers.
■
Operating system independent – no special software or drivers required.
■
Ultra160 low-voltage differential single (LVDS) host ports.
imageRAID_160.book Page vii Friday, November 14, 2003 4:14 PM
About this Manual
■
Up to three UltraLVD SCSI 160 MB/sec disk channels (A host channel is
used in some configurations as a disk channel to provide the third disk
channel.).
■
Support for up to 36 disk drives organized in up to 24 arrays and a total of
64 logical unit numbers (LUNs).
■
Supports clustering environments.
■
All SCSI channels are backward compatible Ultra2 LVD and
Ultra/Fast/Asynchronous single-ended SCSI modes.
■
All SCSI channels support SPI-3 Cyclic Redundancy Check (CRC) and
Domain Validation.
■
Support for cache memory options from 64 MB up to 512 MB using
standard PC-133 compatible SDRAM. DIMMs must be qualified by nStor.
■
Support for RAID levels 0, 1, 3, 4, 5, 10, 50, and just a bunch of disks
(JBOD).
■
Online capacity expansion allowing reconfiguration without interruptions.
■
Drive Roaming for no loss of RAID and LUN configurations.
■
Advanced disk utilities, array verification and recovery, and spare pooling.
■
Firmware can be upgraded either in-band over the SCSI bus or out-of-band
via the RS-232 service port.
■
Continuous runtime diagnostics for warnings and automatic shutdown for
out-of-spec temperature and voltages, battery failures, and internal errors.
Features
vii
imageRAID_160.book Page viii Friday, November 14, 2003 4:14 PM
About this Manual
viii
Features
imageRAID_160.book Page 1 Friday, November 14, 2003 4:14 PM
Chapter 1
Getting Started
This chapter provides a description of the enclosure components and its onboard
monitoring systems.
RESET ALARM
The Components section identifies and gives a complete description of each
major component. The Monitoring section describes the enclosure’s LEDs, and
the manner in which the normal and abnormal conditions are presented.
RESET
ALARM
Rack-Mount Model
Tower Model
imageRAID SCSI Series Storage System
1
imageRAID_160.book Page 2 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
At a Glance
The following illustrations show the featured components of the imageRAID SCSI
Series Storage System. Familiarize yourself with its components prior to installing
and using the storage system.
Drive Status LEDs
(left column of LEDs)
Drive Activity LEDs
(right column of LEDs)
RESET
ALARM
Power On LED
Channel Status LED
Power Supply Status LED
Fan Status LED
Alarm Reset Button
AD
TO D JU
M
T E SUP P E
RM PLY R
PO
WE
R
JP
1
JP
3
350-watt hot pluggable
independent power
supplies (AC shown)
JP
2
1
FG 2
CN FG
ID
CN RA 1
E 2
AR E
SP PAR EL
S D S RT
U ST T
BA LY STR
D T
RM
l0
CH
AN
NE
L -2
AD
D
TO JUMP
SU
TE PP ER
RM LY
PO
WER
CT
AD
D
TO JUMP
DI
TE SA ER
RM BL
INAT E
IO
N
JP
6
nne
CH
1
JP
2
JP
4
l2
JP
7
RL
JP8
nne
Cha
3
AD
D
TO JUMP
SU
TE PP ER
RM LY
PO
WER
CT
JP5
Cha
AD
D
TO JUMP
DI
TE SA ER
RM BL
INAT E
IO
N
CH
l3
AD
TO D JU
M
T E SUP P E
RM PLY R
PO
WE
R
JP
4
AD
TO D JU
M
TE DISA PE
RM BL R
INA E
TIO
N
JP
3
M
TE DISA PE
RM BL R
INA E
TIO
N
l1
nne
SAF-TE Disk I/O Card or
SCSI SAF-TE Cluster Card
CH
AN
NE
L -1
nne
Cha
JP ADD
1 TO JU
Cha
Dual in-line
80-CFM hot
swappable
cooling fans
0
RL
2
SAF-TE Service &
Controller Service Ports
Host SCSI I/O Cards
Con
troll
e
r2
Controller
Cover Plate
Con
troll
er 1
Enclosure Component Identification
2
At a Glance
Optional Dual
SCSI-to-SCSI
RAID Controllers
imageRAID_160.book Page 3 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Components
This section provides a description of each of the major components that
comprise the imageRAID SCSI Series Storage System.
Front Bezel
The front bezel houses the Status LEDs, Drive LEDs, and alarm reset button. When
removed, the user has access to the disk drives. The front bezel can be installed or
removed without interruption to system activities.
Embedded within the front bezel is the electronic package that provides the
communication with the SAF-TE processors (SEP). The SAF-TE processors control
the signals to the front panel through a smart interconnect. Refer to “Control and
Monitoring” on page 17 for details on the monitoring functions.
Power is applied to the front bezel through a smart interconnect edge connector,
where a control circuit monitors the bezel for a proper connection. When the bezel
is properly installed and power is applied to the enclosure, the bezel is
immediately energized.
Drive LEDs
Res
et A
larm
Status LEDs
Alar m Reset Button
Removable Front Bezel
To remove the bezel and gain access to the disk drives, use a Phillips screwdriver
to release both bezel fasteners, then grasp and remove the bezel. The fasteners
rotate one-quarter turn clockwise to lock and counter-clockwise to unlock.
Components
3
imageRAID_160.book Page 4 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Power System
Standard AC Hot Swappable Power Supplies
The AC power system consists of two 350-watt hot-pluggable power supplies, each
with independent AC power cords and cooling fans. This power system provides
the enclosure with “N+1” redundant power. Each power supply has auto-switching
circuitry for use with either 100V or 240V AC systems.
Power On LED
Blank Plate
Fault LED
Power Supply
Power is applied to the enclosure by pressing each of the two power supply
On/Off switches to their “On” position. A Power On LED located on each power
supply will be illuminated indicating that AC power has been applied. The front
bezels’ Power On LED will also be illuminated indicating that power has been
applied.
Each power supply also incorporates an amber general Fault LED. If the power
supply is installed and power is not applied to the power supply or the power
supply cooling fan fails, the Fault LED will illuminate, along with an audible alarm.
The front bezels’ Power Supply Status LED will illuminate green when both
power supplies are on and operating normally. If only one power supply is
operational, the Power Supply Status LED will be illuminated amber.
Each power supply has an AC Power Cord Module. The module has a power
cord bale incorporated into the design to secure the power cord once it has been
properly inserted. The bale prevents inadvertent disconnects.
4
Power System
imageRAID_160.book Page 5 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Optional DC Hot Swappable Power Supplies
The DC power system is designed to allow the storage system to be installed with
Telco system hardware isntallations. It consists of two 350-watt hot-pluggable
power supplies, each with independent DC power cables and cooling fans. It
provides the enclosure with “N+1” redundant power with Telco hardware. Each
power supply cables directly with your DC power feed system.
Power On LED
(green)
Fault LED
(amber)
Release
Latch
Power Connector
DC Power Supply
The DC power supply has the same user features to that of the AC Hot
Swappable Power Supplies described on the previous page.
NOTE:
The DC system must be installed in a restricted access location, in
accordance with intent of the National Electrical Code. A restricted access
location is defined as an area intended only for qualified or trained
personnel only. Access should be controlled by key lock or access card.
Each power supply has a special cable connector that plugs into the face of the
power supply and mechanically connects to your DC feed system. Refer to the
Installation chapter for cabling procedures.
DC Source Site Requirements
Electrical Equipment
Requirement
Voltage
-36 to -72 VDC
Max. Operating Current
13.5 amp to 6.3 amps
Max. Input Surge Current
20.25 amps
Optional DC Hot Swappable Power Supplies
5
imageRAID_160.book Page 6 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
The power feed must be electrically isolated from any AC power source, provide
a reliable connection to earth (battery room positive bus is connected to the
grounding electrode), and capable of providing up to 600 watts of continuous
power per feed pair.
Overcurrent Protection Requirements
Overcurrent protection devices must be provided as part of each equipment rack.
Circuit breakers must be located between the DC power feed source and the
power supplies (two 20 amp double-pole fast rip DC-rated circuit breakers for
each power supply).
NOTE:
Overcurrent protection devices must meet applicable national and local
electrical safety codes and be approved for the intended application.
Power supply overload protection will shut down the power supply when the
output power rating exceeds 110% to 130% of maximum rated output current.
DC Supply and Ground
You DC supply and ground conductor must meet the following requirements:
6
■
Suitable condustor material: copper only.
■
Power supply connections through the input connectors; 12AWG:
-48V
-48V Return
Ground to the power supply
■
System ground conductor: 8 AWG.
■
Cable insulation rating: minimum of 75 C, low smoke fume (LSF), flame
retardant.
■
Branch circuit cable insulation color: per applicable national electrical
codes.
■
Cable type: UL style 1028, UL 1581(VW-1), IEEE 383 compliant, or IEEE
1202-1991 compliant.
■
Grounding insulation color: green/yellow.
Optional DC Hot Swappable Power Supplies
imageRAID_160.book Page 7 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Cooling Fan Module
The cooling system consists of two high-performance (80-CFM) cooling fans
mounted in a single fan module which slides into a bay at the rear of the
enclosure. The design of the fan module provides for an easy-to-install userreplaceable component in a live environment without interruption of service.
If any one fan should fail, cooling redundancy and efficiency are degraded. The
cooling fans and enclosure temperature are constantly monitored by the SAF-TE
processor for fault conditions. In the event of a fault condition the front panel Fan
Status LED will change from a green state to a solid amber state in the case of a fan
failure, or to a blinking amber green state in the case of an over-temperature
condition. In both cases an audible alarm sounds. The SAF-TE processor will also
provide notification data to monitoring software, such as StorView.
WARNING:
Do not operate the enclosure for extended periods of time (greater
than 5 minutes) with the cooling fan module removed.
Fan Speed Override Control
Jumpers JP1 (Fan 0)
and JP2 (Fan 1)
Cooling Fan Module
The enclosure has temperature sensors in three different areas, the drive bay, the
imageRAID Controllers, and the power supplies. There are several processes the
storage system takes to prevent component damage due to over temperature
conditions.
Cooling Fan Module
7
imageRAID_160.book Page 8 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
If the drive bay area reaches a temperature of 50°C (122°F) an audible alarm will
sound, the front panel Fan Status LED will toggle amber green, and the monitoring
software will post a warning message. These notifications give the user a warning
that some condition is causing the enclosure temperature to exceed the preset
value, and an action is required by the user to determine the cause and take
corrective measures. It may be due to a blockage of air flow or a low fan speed.
If any controller reaches a temperature of 50°C (122°F) an audible alarm will
sound, the front panel Fan Status LED will alternate amber and green, and the
monitoring software will post a warning message. If the temperature on any
controller continues to rise, the controller will flush its cache and shutdown. If it is
the only controller (Simplex mode) or the only remaining controller (surviving
controller from a failed over operation) then the controller will also spin down the
disk drives at this temperature.
If any power supply reaches 85°C (185°F) the power supply will shut down.
The SAF-TE Disk I/O card has a firmware-based VT-100 interface which provides
an option to manage fan speed. This option provides a whisper mode fan
operation for noise sensitive environments. When enabled (default), and based on
a set of conditions, the software will manage the cooling fans RPM speed to
maintain the enclosure temperature while minimizing noise levels. Refer to
“Enclosure Fan Speed Control” on page 105 for more details on using this option.
A manual override of the fan speed control is available for special circumstance
environments. Referring to the illustration on the preceding page, two jumpers are
provided on the fan module printed circuit board to override the software control
of the fan speeds. This hardware setting routes full power voltage to the fans for
maximum operational speed, which is greater than the maximum speed set by the
automatic software control. This configuration is normally used when fan speed
noises are not an issue, and the ambient operating temperature is at or above 30°C
(86°F), thus ensuring that maximum available cooling is being provided.
The jumpers JP1 and JP2 by default are offset, which enables the automatic fan
speed control. The jumper JP1 controls Fan 0 and JP2 controls Fan 1. Placing the
jumper on both pins for each jumper will override the automatic setting and
configure the fans to maximum power.
8
Cooling Fan Module
imageRAID_160.book Page 9 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
SAF-TE Disk I/O Card
WARNING:
The SAF-TE Disk I/O card is NOT HOT SWAPPABLE. You must
POWER DOWN the enclosure prior to removing or installing this card.
The SAF-TE Disk I/O card provides the built-in environmental and system status
monitoring, as well as, host connectivity to the disk drives, It also houses the
switches for setting SCSI IDs, VT-100 communication protocols, and drive spin up
options.
This card has two SAF-TE processors (SEPs) that continuously monitors the
enclosure for temperature status, fan status, power supply status, and SCSI
channel status. The SEPs are responsible for reporting environmentals and system
status to the front bezel LEDs/audible alarms and external monitoring software.
The monitoring system is fully compliant with SAF-TE specification protocol
version 1.0.
At power up, the SAF-TE processors read the SCSI switch settings and configures
the system for the appropriate addresses. It then executes instructions from
firmware performing a self-test diagnostics. The firmware is flash upgradeable
using the SAF-TE RS-232 Service port located below the I/O card slots at the rear
of the enclosure. The firmware also contains the necessary functions for
enclosure management via a VT-100 interface.
Specific switch settings are discussed later in the Installation chapter.
Co
nf
Co igura
n tio
RA figura n 1
I
t
Sp D ion 2
are
Sp 1
are
BA 2
U
De D Ra
la t
Re y Drive Sele
mo e S ct
te D ta
rive rt
Sta
rt
NOTE:
Channel 1
Termination Jumper
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR SEL
S D RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L -1
JP8
A A R S SB DR
0 1 D 0 1D LM
TE
UP
AD
D
TO JUM
DIS PE
RM ABL R
INAT E
IO
N
JP
1 2 3 4 5 6 7 8
7
DOWN
AD
D
TO JUM
D
TE ISA PER
RM BL
INAT E
IO
N
Ch
el 1
CH
AN
NE
L -2
ann
Ch
ann
el 2
Channel 2
Termination Jumper
SAF-TE Disk I/O Card
SAF-TE Disk I/O Card
9
imageRAID_160.book Page 10 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
The SAF-TE Disk I/O card has two 68-pin VHD/CI SCSI connectors which
provides the connectivity from the host computer to the disk drives and drive
connectivity to the expansion JBOD enclosures. The connectors are labeled
“Channel 1” and “Channel 2.”
In JBOD dual-bus mode, the Channel 1 connector provides SCSI bus access
to drive slots 1 through 6, and the Channel 2 connector provides access to
the drives in slots 7 through 12.
In JBOD single-bus mode, the Channel 1 connector provides SCSI bus access
to all the drives, slots 1 through 12.
NOTE:
Termination is automatic and provided from the drive mid-plane circuit
board. Termination is configured using two sets of jumpers on the card.
These jumpers enable and disable the automatic termination. Add the jumper
(installed on both pins) for JP8 on Channel 1 and JP7 for Channel 2 which
disables the automatic termination feature. (The default position is the jumper is
offset or unjumpered.)
In daisy-chain configurations, you must make changes to the jumper settings in
the enclosure’s SAF-TE Disk I/O card in that appears at the end of the
daisy-chain. In each supported configuration, a IRS-JBOD enclosure will be the
enclosure at the end of the daisy chain. In some configurations multiple
IRS-JBOD enclosures can appear at the end of the chain. Those enclosures will
need to have their jumper settings, JP7 and JP8, set to the jumpered position or
installed on both pins. During installation, instructions are provided to correctly
configure the daisy-chain enclosure settings.
SCSI SAF-TE Cluster Card
WARNING:
The SCSI SAF-TE Cluster card is NOT HOT SWAPPABLE. You must
POWER DOWN the enclosure prior to removing or installing this card.
The SCSI SAF-TE Cluster card provides the host connectivity to the disk drives and
the built-in environmental and system status monitoring. The card incorporates
dual Ultra320 SCSI bus expanders to couple and isolate bus segments without
any impact to the protocol.
10
SCSI SAF-TE Cluster Card
imageRAID_160.book Page 11 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Co
nf
Co igura
tio
n
RA figura n 1
I
t
Sp D ion 2
are
Sp 1
are
BA 2
U
De D Ra
la t
Re y Drive Sele
mo e S ct
te D ta
rive rt
Sta
rt
The card provides switches for setting the SCSI IDs, VT-100 communication
protocols, and drive spin up options. Two jumpers are provided to control the
ability to enable or disable the clustering bus isolation capabilities.
Channel 1
Termination Jumper
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR SEL
S D RT
U ST T
BA LY STR
D T
RM
CH
AN
L -1
NE
JP8
A A R S SB DR
0 1 D 0 1D LM
AD
D
TO JUM
D
TE ISA PER
RM BL
INAT E
IO
N
UP
JP
1 2 3 4 5 6 7 8
7
DOWN
AD
D
TO JUM
D
TE ISA PER
RM BL
INAT E
IO
N
Ch
el 1
CH
L -2
NE
AN
ann
Ch
ann
el 2
Channel 2
Termination Jumper
SCSI SAF-TE Cluster Card
The Ultra320 bus expanders re-time the SCSI signals as necessary to guarantee
SCSI bus signal timings. They provide precise delay control which maintains
precise SCSI bus timings.
The use of the Ultra320 bus expanders allows the full support of clustering
environments where a system can be removed in a live environment without
bringing down the bus, therefore ensuring an ideal solution for high availability
clustering systems.
The SCSI SAF-TE Cluster card has two SAF-TE processors (SEPs) that continuously
monitor the enclosure for temperature status, fan status, power supply status, and
SCSI channel status. The SEPs are responsible for controlling the front bezel LEDs
and audible alarms. The data is also sent to any external monitoring software.
This monitoring system is fully compliant with SAF-TE specification protocol
version 1.0.
At power up, the SAF-TE processors read the SCSI switch settings and configures
the system for the appropriate addresses. It then executes instructions from
firmware performing a self-test diagnostics.
The SAF-TE processor firmware is flash upgradeable using the RS-232 Service
port located below the IO card slots at the rear of the enclosure. The firmware
also contains the necessary functions for enclosure management via a VT-100
interface.
SCSI SAF-TE Cluster Card
11
imageRAID_160.book Page 12 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
The SCSI SAF-TE Cluster card has two 68-pin VHD/CI SCSI connectors which
provides the connectivity from the host computer(s) to the disk drives and drive
connectivity to expansion JBOD enclosures. The connectors are labeled “Channel
1” and “Channel 2.”
In JBOD single-bus mode, the Channel 1 connector provides SCSI bus access to
all the drives, slots 1 through 12.
NOTE:
Termination is automatic and provided internally.
To enable fault-tolerant clustering support the jumpers, JP7 and JP8, should be
offset (default setting). During installation setup, instructions are provided to
correctly configure the jumper settings. If the jumpers are installed on both pins
you will loose the clustering support capabilities. And removing the cables or
bringing down the system from one side will cause loss of access to the disk
drives and the other systems. Refer to the illustration “SCSI SAF-TE Cluster Card”
on page 11.
Spin-Up Settings
Switches 7 and 8 control the drive spin-up functions. The switches are directly
attached to all of the drive slot start signals. Switch 7 controls the “Start_1” signal
(Delay Spin-up) and switch 8 controls the “Start_2” signal (Remote Spin-up).
The table below describes the function of each switch.
“DL” Switch 7
“RM” Switch 8
Down (0)*
Down (0)*
Down (0)
Up (1)
Up (1)
Down (0)
Up (1)
Up (1)
* Default setting for proper operation.
12
Spin-Up Settings
Drive Spin-up Mode
Drive motor spins up at DC power on.
Drive motor spins up only on SCSI “start”
commands.
Drive motor spins up after a delay of 12
(may vary depending on drive type) seconds
times the numeric ID setting of the
associated drive.
Drive motor will not spin-up.
imageRAID_160.book Page 13 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Host SCSI I/O Card
WARNING:
The Host SCSI I/O card is NOT HOT SWAPPABLE. You must POWER
DOWN the enclosure prior to removing or installing this card.
The Host SCSI I/O cards, also known as I/O cards, are installed IRS-1U160/
IRS-2U160 Series Storage systems. Each card has two 68-pin VHD/CI SCSI
connectors which provides the connectivity from the host computer to Channel 0
and Channel 3 of each imageRAID Controller. The connectors are labeled
“Channel 0” and “Channel 3.”
The Host SCSI I/O cards are not associated to one controller or the other, and
therefore, host connections can be made via either cards’ channel connector.
Under some configurations, Channel 3 can be configured as a drive channel. This
allows further expansion of the drive channels, which are in addition to the two
channels provided on the SAF-TE Disk I/O card.
NOTE:
The SAF-TE Disk I/O card provides Channels 1 and 2 SCSI drive ports.
Cabling diagrams are provided in the Installation chapter for each supported
topology. To ensure proper failover and failback operations and LUN
presentation, cable your system based on the diagram for your selected topology.
1
AD
D
OT JUM
TE DISA PE
RM BL R
INA E
TIO
N
JP
JP
3
JP
2
JP
4
AD
TO D JU
M
TE SUP PE
RM PL R
PO Y
WE
R
Cha
Termination Jumpers
for Host Channels 0 and 3
nne
l0
I/O
Cha
nne
l3
Host SCSI I/O Card
The Host SCSI I/O cards incorporate an automatic termination feature and does
not require external terminators.
Host SCSI I/O Card
13
imageRAID_160.book Page 14 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Jumpers on the card are provided to configure Term Power and Termination,
however their settings do not require any changes for the RAID enclosure. The
default settings are: JP1 and JP2 unjumpered or offset, and JP3 and JP4 installed
on both pins.
NOTE:
In some circumstances, if the host system does not see the imageRAID
Controllers, remove the Host SCSI I/O card and install the jumpers JP1 and
JP2 on both pins to disable termination. This should resolve the problem.
Single Bus Module
The IRS-JBOD enclosure can be configured as a continuous single SCSI bus. This
option is provided to meet the application needs to address all of the disk drives
on one SCSI bus.
Removing the cover plate and installing the Single Bus Module configures the
internal bus from a split-bus to a single continuous bus.
AD
TO D JU
M
TE SUP PE
RM PLY R
PO
WE
R
JP
1
JP
3
AD
TO D JU
M
TE SUP PE
RM PLY R
PO
WE
R
JP
JP
2
A
JP
3
JP
4
M
T E DISA P E
R M BL R
INA E
TI O
N
1 TO DD JU
JP
2
JP
4
AD
TO D JU
M
T E DISA P E
R M BL R
INA E
TIO
N
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR EL
S D S RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L
-1
JP5
AD
D
TO JUMP
SU
TE PP ER
RM LY
PO
WER
JP8
TE
JP
AD
D JU
DISA MPER
BL
INAT E
IO
N
TO
RM
7
TE
6
AD
D JU
DISA MPER
BL
INAT E
IO
N
TO
RM
JP
TE
AD
D
TO JUMP
SU ER
RM PPLY
PO
WER
CH
AN
NE
L -2
Single Bus Module
Single-Bus
Module
Cover Plate
Installing the Single Bus Module and Cover Plate
14
Single Bus Module
imageRAID_160.book Page 15 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
imageRAID Controllers
The enclosure houses one or two imageRAID Controllers. It supports
configurations for single controller Stand-Alone topologies and dual controller
Active-Active/Active-Passive topologies.
The imageRAID Controller is a Ultra160-to-Ultra160 SCSI RAID controller. It has
four Ultra160 host ports and two Ultra160 SCSI disk channel ports. This controller
is occasionally referred to throughout this manual and in the software as a JSS122
model.
The controller operates in one of three different modes: Stand-Alone, Active-Active.
or Active-Passive. In the Stand-Alone mode, the controller operates autonomously.
In the Active-Active/Active-Passive mode, the two controllers operate as a pair. If
one controller fails in the Active-Active/Active-Passive mode, the other can take
over the failed controller’s work.
Ejector Handles
imageRAID Controller
The Disk Array Administrator software is embedded in the controller firmware,
and requires no specific software drivers for the host operating system. These
utilities are accessed through the Java-based AdminiStor storage management
software or a VT-100 terminal. (See either the AdminiStor Software Guide or the
VT-100 Software Guide.)
imageRAID Controllers
15
imageRAID_160.book Page 16 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
RS-232 Service Ports
Located below the I/O card slots is the SAF-TE service port and two imageRAID
Controller service ports. Refer to the illustration under “At a Glance” for the port
locations on the rear panel.
CTR
Controller 1: Service Port
L1
SA
F-T
E
CTR
L2
SAF-TE Service Port
Controller 2: Service Port
SAF-TE Service and imageRAID Controller Service Ports
The SAF-TE Service port provides an RS-232 serial interface to the SAF-TE Disk
I/O card allowing firmware uploads, and maintenance/service monitoring of the
SEPs. This port is labeled “SAF-TE.”
The two imageRAID Controller service ports, which are labeled “CTRL 1” and
“CTRL 2,” provide an interface to each imageRAID Controller. They provide
access to the firmware-based Disk Array Administration software and provide
options to update the firmware. The ports are standard DB9 connectors which
provides a connection using a null-modem serial cable for VT-100 terminal and
host serial port communication via emulation software.
16
RS-232 Service Ports
imageRAID_160.book Page 17 Friday, November 14, 2003 4:14 PM
Chapter 1 - Getting Started
Control and Monitoring
An integral part of the imageRAID SCSI Series Storage System is its control and
monitor capabilities.
The SAF-TE processors provide monitoring data for the enclosure environmental
conditions such as enclosure temperature, cooling fans, power supplies, and SCSI
bus status. This data is reported to the monitoring system to provide LED and
audible alarm notifications. This monitored information is also communicated to
external monitoring software.
Refer to “VT-100 Interface Enclosure Monitoring” on page 110 for complete
details.
The imageRAID Controllers provide monitoring data for its environmental
condition and logical arrays. They communicate that data to the front bezel LEDs,
third-party configuration and monitoring software, and the VT-100 Disk Array
Administration firmware-based software interface for management and
monitoring. (Refer to the software user’s guide for configuration, management,
and monitoring of the controllers and logical arrays.)
Drive Status LEDs
(left column of LEDs)
Drive Activity LEDs
(right column of LEDs)
Res
Power On LED
et A
larm
Channel Status LED
Power Supply Status LED
Fan Status LED
Alarm Reset Button
Front Bezel LEDs and Reset Button Identification
Control and Monitoring
17
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Chapter 1 - Getting Started
The imageRAID SCSI Series incorporates a “One-Touch Annunciation” which
provides an LED readout of the current switch configuration, host interface type,
bus configuration, communication BAUD setting, drive spin-up settings, and
controller status. Refer to “One-Touch Annunciation” on page 95 for more details.
Status Indicator LEDs
The Status Indicator LEDs comprise the Power-On LED, Channel Status LED,
Power Supply Status LED, and Fan Status LED. These series of LEDs are grouped
on the right side of the front bezel directly above the Alarm Reset button. The
following is an description of each LED.
Power-On LED
The Power-On LED signifies that the enclosure is powered on and will be
illuminated green when power has been applied.
Channel Status LED
The Channel Status LED will remain green at all times when the enclosure is
setup in JBOD mode. However, the LED will indicate the status of the logical
array(s), when enclosure is setup in a RAID configuration.
Power Supply Status
The Power Supply Status LED indicates the condition of the power supplies. The
LED will illuminate steady green when both power supplies are functioning
normally and will change to amber if one power supply should fail or is turned off.
Fan Status
The Fan Status LED indicates the condition of the cooling fans. The LED will
illuminate green when both fans are functioning normally and will change to
amber if any of the fans fail.
18
Status Indicator LEDs
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Chapter 1 - Getting Started
Drive LEDs
The Drive LEDs are located on the left side of the front bezel in between the
ventilation ribs and comprise the Drive Status LEDs and Drive Activity LEDs. The
Drive LEDs are grouped in pairs and are in the general location of the disk drive
slot. There are 12 Drive Status and Drive Activity LEDs, one group or pair for
each disk drive.
Refer to “Drive LEDs” on page 91 for detailed information.
Audible Alarm
An audible alarm will sound when any of the enclosure’s component condition
changes to an abnormal state. To silence the alarm, press the Alarm Reset button
located on the front bezel. The corresponding alarms’ LED will remain
illuminated until the condition returns to a normal state.
Drive LEDs
19
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Chapter 1 - Getting Started
20
Audible Alarm
imageRAID_160.book Page 21 Friday, November 14, 2003 4:14 PM
Chapter 2
Theory of Controller Operation
This chapter provides a functional overview and understanding of the supported
topologies and operating modes for the imageRAID SCSI Series Storage System.
With this information, you will be able to make the best choice based on the
supported topologies, to set up your storage solution.
The IRS-JBOD is the JBOD SCSI and Clustering enclosure storage system. The
IRS-1U160xx-xx model with its single imageRAID controller supports the
Stand-Alone operating mode, and the IRS-2U160xx-xx with its dual imageRAID
controllers supports the active-active or active-passive operating modes. There
are three operating modes for these two imageRAID SCSI Series models:
Stand-Alone, Active-Active, and Active-Passive. Either mode can function in
single or dual port configurations.
Operating Modes Overview
These operating modes let you configure the enclosure to support a variety of
host environments.
■
JBOD – Use this mode for single or multiple enclosures without
imageRAID Controllers (IRS-JBOD), and clustering configurations.
■
Stand-Alone Single Port – Use this mode when you have the
IRS-1U160xx-xx (single imageRAID controller) and require single-HBA host
access. There will be several cabling schemes to choose from when you
setup this operating mode.
21
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Chapter 2 - Theory of Controller Operation
■
Stand-Alone Dual Port – Use this mode when you have a IRS-1U160xx-xx
(single imageRAID controller) and require dual-HBA host access, or two
independent host access. There will be several cabling schemes to choose
from when you setup this operating mode.
■
Active-Active Single Port – Use this mode when you have a
IRS-2U160xx-xx (dual imageRAID controllers) and require both controllers
to be active and processing host I/O operations. This operating mode uses
one of the host ports of each imageRAID controller and supports single or
dual host system connections. There are several cabling schemes when
setting up the single host system or dual host systems.
■
Active-Passive Dual Port – Use this mode when you have IRS-2U160xx-xx
(dual imageRAID controllers) and require only one imageRAID controller
to be active. while the other controller is in a passive mode as a “hot”
standby. This operating mode supports single or dual host system with
several cabling schemes. It does not provide the performance compared to
either of the Active-Active modes.
The naming conventions are broken down into two parts: the first part refers to
the number of controllers and their state, and the second part refers to the state
of the controller’s host ports (not to be confused with the physical I/O ports).
Stand-Alone designates a single controller system, and Active-Active or
Active-Passive designates a dual controller system.
The Single Port or Dual Port component of the name convention refers to the
number of enabled Host ports on the active controller. Note that there are two
host ports on each controller (internally).
22
Operating Mode
Number of
Controllers
Stand-Alone:Single Port
(IRS-1U160xx-xx)
1
1
3
Stand-Alone:Dual Port
(IRS-1U160xx-xx)
1
2
2
Active-Active:Single Port
(IRS-2U160xx-xx
2
1
2
Active-Passive:Dual Port
(IRS-2U160xx-xx)
2
2 (active controllers only)
2
Operating Modes Overview
Number of Active Host Ports per
Controller
Number of Disk
Channels
imageRAID_160.book Page 23 Friday, November 14, 2003 4:14 PM
Chapter 2 - Theory of Controller Operation
Stand-Alone Mode
In Stand-Alone mode, the imageRAID controller operates autonomously. The
controller has two SCSI Host I/O connector ports. They are labeled in the
diagrams as “CH 0” and “CH 3.” In Single Port mode, the “CH 3” connector
becomes a drive channel providing one additional drive channel for expansion.
Advantages:
■
Low cost entry-level RAID storage solution that is field upgradeable.
■
Allows the use of dual host ports to maximize bandwidth and host IOPs.
(For example: this configuration is ideal for sequential access patterns,
where disks can supply more than 160 MB/sec of data to a host.)
■
Host system has multiple paths to each array (with host driver).
■
All arrays appear on both host ports at the same LUN positions in Dual Port
mode. (If both ports are connected to the same host, the host will see a
given array twice unless it does special processing to detect duplicate paths
to array. A host device driver may provide this functionality.)
■
Hosts can detect redundant paths to an array by matching array serial
numbers from SCSI inquiry data.
Disadvantages:
■
The controller is a single point of failure.
■
Third-party software is required for upstream path fail-over.
On the following two pages are diagrams which depicts the logical function of
this operating mode.
Drive I/O Connectors
Controller Host Ports
I/O Card
T
T
Disk
CH1
(CH3) Disk
Channel
Disk
CH2
T
Drives 7 - 12
SEP
T
T
Controller 1
T
SEP
CH 2
CH 3
(CH0) Active
CH 1
Host System
HBA 1
CH 0
imageRAID Controller
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
T
CH 0
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone:Single Port with Single Host
Stand-Alone Mode
23
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Chapter 2 - Theory of Controller Operation
Drive I/O Connectors
Controller Host Ports
I/O Card
T
T
Disk
CH1
(CH3) Disk
Channel
Disk
CH2
T
Drives 7 - 12
SEP
T
Controller 1
T
SEP
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
Host System #2
HBA 1
CH 0
T
CH 2
CH 3
(CH0) Active
CH 1
Host System #!
HBA 1
CH 0
imageRAID Controller
T
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone:Single Port with Two Hosts
Controller Host Ports
I/O Card
Host System #1
HBA 2
CH 3
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
T
Drives 7 - 12
SEP
T
T
Controller 1
T
SEP
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
T
CH 0
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone:Dual Port with Single Host
24
Stand-Alone Mode
T
CH 2
CH 0
CH 1
Host System #1
HBA 1
Drive I/O Connectors
imageRAID Controller
imageRAID_160.book Page 25 Friday, November 14, 2003 4:14 PM
Chapter 2 - Theory of Controller Operation
Controller Host Ports
Drive I/O Connectors
imageRAID Controller
I/O Card
T
Host System #2
HBA 1
CH 3
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
Drives 7 - 12
T
SEP
T
T
T
Controller 1
SEP
T
CH 2
CH 0
CH 1
Host System #1
HBA 1
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
T
CH 0
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone:Dual Port with Two Hosts
Drive I/O Connectors
Controller Host Ports
imageRAID Controller
I/O Card
Host System #1
HBA 2
CH 3
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
T
Drives 7 - 12
SEP
T
T
Controller 1
T
SEP
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
Host System #2
HBA 1
Host System #2
HBA 2
CH 0
T
CH 2
CH 0
CH 1
Host System #1
HBA 1
T
Controller Disk Ports
CH 3
T
T= Location of internal termination
Host I/O Connectors
Stand-Alone:Dual Port with Dual Host (Quad Cabling)
Stand-Alone Mode
25
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Chapter 2 - Theory of Controller Operation
Active-Active Mode
In the Active-Active mode, the two imageRAID Controllers cooperate to provide
redundancy. If one controller fails, the remaining controller will take over the
failed controller’s functionality. Each controller has two SCSI Host ports, they are
labeled in the diagrams as “CH 0” and “CH 3.”
In the Active-Active:Single Port mode, one Host port is normally active, and the
other is normally passive. In a failed over condition, the passive port of the
surviving controller becomes active and assumes the identity of the failed
controller. This failover process occurs without user intervention.
Presentation of LUNs in Active-Active:Single Port Mode
Controller Status
Controller 1
Channel 0
Controller 1
Channel 3
Controller 2
Channel 0
Controller 2
Channel 3
Both controllers online
Controller 1
LUNs
Passive
Controller 2
LUNs
Passive
Controller 1 Fails
Inactive
Inactive
Controller 2
LUNs
Controller 1
LUNs
Controller 2 Fails
Controller 1
LUNs
Controller 2
LUNs
Inactive
Inactive
Arrays can only be accessed by the controller that currently owns them. One
controller will have no visibility to the others’ arrays. If one controller fails, the
surviving controller will take ownership of all arrays. Pool spares and unassigned
disks are visible to both controllers.
The two controllers communicate via the back-end disk buses. Although many
different message types are sent between the two controllers, the majority of the
data is write cache data. In the default write-back caching mode, any data that the
host writes to one controller is copied to the other controller before a good status
is returned to the host. By mirroring the data, if a controller fails, the surviving
controller will have a copy of all data that has not been written to the disk.
WARNING:
The controllers communicate with each other using SCSI Initiator IDs
6 and 7 on each of the disk channels,. You should not change these
ID settings.
Each controller sends heartbeat messages to its partner controller. If a controller
does not receive a heartbeat message within a set time period, it will kill the
other controller assuming that it has malfunctioned.
26
Active-Active Mode
imageRAID_160.book Page 27 Friday, November 14, 2003 4:14 PM
Chapter 2 - Theory of Controller Operation
After killing the other controller, it will take ownership of the arrays and will
activate its passive host port to assume the defunct controller’s identity.
The following diagrams illustrate the logical function of the controllers when both
are active and then again when one controller has failed.
Drive I/O Connectors
imageRAID Controller
HOST I/O
CH 3
Drives 7 - 12
(CH0) Active
Disk
CH1
(CH3) Passive
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
CH 2
Host System #1 HBA #1
CH 0
CH 1
Host System #2 or
Host System #1 HBA #2
T
SEP
SAF-TE Disk I/O
imageRAID Controller
HOST I/O
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Active
Disk
CH2
T
T
Controller 2
T
T= Location of internal termination
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Active Single Port Mode Both Controllers Active
Drive I/O Connectors
imageRAID Controller
HOST I/O
CH 3
Drives 7 - 12
(CH0) Failed
Disk
CH1
(CH3) Failed
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
SEP
CH 2
Host System #1 HBA #1
CH 0
CH 1
Host System #2 or
Host System #1 HBA #2
T
SAF-TE Disk I/O
imageRAID Controller
HOST I/O
CH 0
CH 3
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
T
T
Controller 2
T
T= Location of internal termination
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Active Single Port Mode Controller 1 Failed
Active-Active Mode
27
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Chapter 2 - Theory of Controller Operation
In the failed-over condition, the active controller will present its native identity on
one Host port, and the failed-over controller’s identity on its other Host port.
After the controller has failed-over, the user can replace the failed controller with
a new controller, and the arrays will fail-back to the new controller without
intervention. If you want to retry the failed controller, it’s necessary to release the
killed status that the survivor asserts. This is accomplished via the VT-100 —
Other Controller Menu – Unkill Other menu option.
If you replace a failed controller with a new controller, the new controller will
attempt to retrieve its configuration (see “Understanding Mirrored Operations” on
page 31) from the surviving controller. This means that the replacement
controller will boot up with the same configuration as the controller it replaced.
If the surviving controller for some reason does not contain a valid mirrored
configuration, then the user must manually configure the replacement controller.
The correct host target ID must be set, and the Active-Active operating mode
must be enabled.
The Active-Active controller system makes some assumptions about the host
operating system’s SCSI processing. Specifically, the host must retry incomplete
commands after a specific time period. This retry is necessary because a host may
issue a command to a controller, the controller fails over, and the new controller
does not have a copy of the command.
Advantages:
■
LUN isolation with the single port-single host system.
■
Access to all LUNs with the quad cabling configuration.
■
Provides transparent fail-over and fail-back.
Disadvantages:
28
Active-Active Mode
■
Host HBA or the Host SCSI bus are single points of failure.
■
In a single host configuration, the host system is also a single point of
failure.
■
No upstream fail-over with a single host dual HBA configuration. Upstream
fail-over requires dual host with quad cabling and third party file share/file
lock software.
■
Protected LUN sharing between two host systems is not supported without
the use of third party file share/file lock software.
imageRAID_160.book Page 29 Friday, November 14, 2003 4:14 PM
Chapter 2 - Theory of Controller Operation
Active-Passive Mode
In the Active-Passive mode, there is one active and one passive imageRAID
Controller. The primary (active) controller operates with both of its Host ports
enabled and presents all LUNs on both ports to maximize bandwidth. The
secondary (passive) controller keeps both its Host ports passive, and does not
service any LUNs. Both controllers monitor each other’s heartbeats and the
passive controller receives write data and parity logs from the active controller.
If the active controller fails, normal fail-over occurs to the passive controller,
which becomes active by enabling both of its Host ports and takes ownership of
all arrays.
Controller 1
Host Port 0 (FC1)
Controller 1
Host Port 1 (FC2)
Controller 2
Host Port 0 (FC1)
Controller 2
Host Port 1 (FC2)
Controller 1
LUNs
Inactive
Inactive
Controller 2
LUNs
Controller 1
Failed
Inactive
Inactive
Controller 1
LUNs
Controller 2
LUNs
Controller 2
Failed
Controller 1
LUNs
Controller 2
LUNs
Inactive
Inactive
Both Controllers
Online
Controller 1 is the default active controller. Controller 2 is always passive unless
controller 1 fails. The default active controller is not selectable.
Because the active controller does not have to mirror the passive controllers data,
more write-back cache memory can be made available to the active controller.
This means that half the cache memory can be dedicated to writes and half to
reads. This is the same allocation used in Stand-Alone mode.
Each controller sends heartbeat messages via the SCSI buses to its partner
controller. If a controller does not receive a heartbeat message within a set time
period, it will kill the other controller assuming that it has malfunctioned. After
killing the other controller, it will take ownership of the arrays and will activate
its passive host port to assume the defunct controller’s identity.
WARNING:
The controllers communicate with each other using SCSI Initiator IDs
6 and 7 on each of the disk channels,. You should not change these
ID settings.
On the following page, you will find diagrams which illustrates the Active-Passive
mode logical functions when the controllers are functioning in a normal
condition and then in a failed condition.
Active-Passive Mode
29
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Chapter 2 - Theory of Controller Operation
Advantages:
■
■
■
Transparent fail-over and fail-back.
Single point of failure is the host system. (There are no single points of
failure when dual host systems are configured with clustering software.)
Upstream fail-over.
Disadvantages:
■
Lower performance than the Active-Active mode.
■
Upstream fail-over requires third party software.
■
Careful administration is necessary, since all the arrays are reported twice
to the host operating system which requires the use of third party file
share/file lock software to prevent data overwrites.
Drive I/O Connectors
imageRAID Controller
HOST I/O
CH 3
Drives 7 - 12
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
CH 2
Host System #1 HBA #1
CH 0
CH 1
Host System #2 or
Host System #1 HBA #2
SEP
SAF-TE Disk I/O
imageRAID Controller
HOST I/O
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Passive
Disk
CH2
T
T
Controller 2
T= Location of internal termination
T
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Passive Dual Port Controller 1 Active
Drive I/O Connectors
HOST I/O
CH 3
T
(CH0) Failed
Disk
CH1
(CH3) Failed
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
SEP
SAF-TE Disk I/O
imageRAID Controller
HOST I/O
CH 0
CH 3
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
T
T
Controller 2
T= Location of internal termination
T
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Passive Dual Port Controller 1 Failed
30
Active-Passive Mode
CH 2
Host System #1 HBA #1
CH 0
Drives 7 - 12
CH 1
Host System #2 or
Host System #1 HBA #2
imageRAID Controller
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Chapter 2 - Theory of Controller Operation
Understanding Mirrored Operations
The mirroring feature causes configuration changes to be mirrored to the
opposite controller in an Active-Active configuration. The mirrored configuration
is stored in the other controller’s firmware (Flash). If a controller fails and is
replaced, then on boot up, it attempts to retrieve this configuration data from the
opposite controller. The intent is that the user will not need to reconfigure a new
controller when it is replaced.
NOTE:
Dual imageRAID controller operations require that both controllers must
have the same version firmware installed.
If a replacement controller uses its mirrored configuration, you will see it print a
message during boot (saying it’s using the mirrored configuration), and then it
will reboot (rebooting is necessary for the mirrored configuration to take effect).
Here’s how the mirrored configuration works in different scenarios:
■
Stand-Alone mode – The feature is not active.
■
Active-Active mode where both controllers are operating normally – Each
controller uses its own local configuration.
■
Active-Active mode where one controller boots and the other controller
does not boot due to some problem – The controller that boots uses its
local configuration.
■
Active-Active mode where one controller is up when a new replacement
controller boots – the new controller attempts to get its mirrored
configuration from the other controller. If it is not available, it will try to
use its local configuration. If that is not available, then it will use the
default settings.
NOTE:
When Clear Configuration is selected in the Flash Utility menu, both the
local Flash configuration and the other controller’s mirrored configuration
image are cleared. Also, there is an option (J) in the Flash Utility menu
that can be used to tell a booting controller to temporarily ignore the
mirrored configuration. This can be used, if for whatever reason, the
mirrored configuration should not be used by a booting controller. This is
primarily a safeguard, because a retrieved mirrored configuration is
checked extensively before it is used.
Understanding Mirrored Operations
31
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Chapter 2 - Theory of Controller Operation
A Word about Clustering
Minimizing Downtime for Maximum Data Availability
So-called open systems, such as Windows NT servers, just don’t provide the level
of availability that IS managers are familiar with on mainframes. A partial solution
to this problem is server clustering.
Clusters consist of two or more loosely coupled systems with a shared-disk
subsystem and software that handles failover in the case of a node (host) failure.
In most cases, hardware/software failover is performed automatically and is
transparent to users, although users will experience performance degradation as
processing is shifted to another cluster node. In some cases this failover can
occur in a matter of seconds.
High availability of data and applications is by far the most compelling reason to
go with clustering technology. For example, the accepted rule is that stand-alone
UNIX systems can provide 99.5% uptime. Adding a RAID subsystem can increase
the uptime to 99.9%. The goal of clustering is 99.99% availability.
Beyond clustering, fault-tolerant systems can provide 99.9999% uptime. At the
high end, continuous-processing systems offer virtually 100% uptime.
Although the increase from 99.5% to 99.99% availability may seem insignificantly
small, it adds up in terms of minutes per year of downtime. For example,
assuming a 7x24 operation, 99.5% uptime translates into 2,628 minutes — or
more than 43 hours of downtime per year. In contrast, 99.99% uptime translates
into less than one hour (52 minutes) of downtime per year.
Availability figures relate primarily to unplanned downtime. But the advantages
of clusters in terms of planned or scheduled downtime are even more significant.
If you figure two to sixteen hours per month for a server in a large shop.
Planned downtime requires shutting down stand-alone systems entirely. Result:
100% loss of processing for the duration of the downtime. But, with cluster, you
can shut down one node and off-load the processing to other nodes in the cluster
with no interruption of processing.
32
A Word about Clustering
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Chapter 2 - Theory of Controller Operation
High availability is not the only benefit of clustering. In some cases, users may
see advantages in the areas of performance, scalability, and manageability. In
reality, you can expect a 1.6x (80% efficiency) to 1.8x (90% efficiency)
performance increase as you go from one node to two nodes. Going from one
node to a four node cluster generally yields a 2.5x or 3x performance boost.
However, the cluster performance is application dependent. For example, READ
operations may yield a 1.8x performance increase going from one to two nodes,
but in a WRITE intensive application, you may only see a 1.4-1.6x improvement.
Although clusters seem to be relatively simple, they involve complex technology
that can be implemented in a variety of ways. The number of nodes supported
and type of interconnection used, and a number of other features differentiate
cluster implementations. One area of implementation is the manner in which
distributed lock manager is implemented. Some perform this at the user level and
others in the kernel, with the latter enhancing performance.
In addition to the differing features you should consider the following:
Does the cluster:
•
have the ability to hot load new nodes without bringing down the
whole cluster?
•
provide automatic or manual failover?
•
load balance?
•
use a journalized file system?
•
provide a fast cluster failover?
•
allow for the nodes to be geographically located?
Minimizing Downtime for Maximum Data Availability
33
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Chapter 2 - Theory of Controller Operation
How Available are Clusters?
The following tables outlines the maximum availability per downtime in the
different architectures:
Architecture
Maximum Availability
Downtime per Failure
Downtime per Year
(in minutes)
Continuous
Processing
100.00%
None
0
Fault-Tolerant
99.9999%
Cycles
0.5 - 5
Clusters
99.9 - 99.999%
Seconds to
minutes
5 - 500
High Availability
99.9%
Minutes
500 - 10,000 (disk
mirroring)
Stand Alone
System
99.5%
Hours
2,600 - 10, 000
(without disk
mirroring)
Application of Availability
The imageRAID SCSI Series Storage System implementation of availability within
its supported topologies are as follows:
Architecture
34
How Available are Clusters?
Corresponding Topology
Continuous Processing
Not Available
Fault-Tolerant
Active-Passive:Dual Port
Cluster
Active-Active:Dual Port or Single Bus
Clustering
High Availability
Active-Active:Single Port
Stand Alone System
Stand-Alone:Dual Port
imageRAID_160.book Page 35 Friday, November 14, 2003 4:14 PM
Chapter 3
Setup and Installation
Overview
This chapter describes the procedures to install and setup the imageRAID SCSI
Series Storage System. Each section will step you through the hardware
installation, cabling and topology configurations, and upgrades.
It is important to thoroughly review this information and perform the steps of
procedures in each applicable section, in the order in which they are presented.
This will ensure a smooth and trouble-free installation.
The installation is divided into three sections. The first section describes installing
the enclosure(s) into the rack cabinet. The second section is “Enclosure
Configuration” which describes setting the SAF-TE Disk I/O card or the SCSI
SAF-TE Cluster card switches and the enclosure-to-enclosure cabling. (These
configurations are categorized by the number of disk drives. For example, a
IRS-JBOD (single enclosure) is described as the “JBOD - 12 Drive Configuration,”
where a imageRAID IRS-1U160/IRS-2U160 with two daisy-chained IRS-JBOD
enclosures will be described as the “RAID - 36 Drive Configuration.” The third
section, “Topology Host Cabling,” describes the cabling of the primary RAID
storage enclosure to the host system(s). The topologies are based on the operating
modes: JBOD, Stand-Alone Single Port, Stand-Alone Dual Port, Active-Active
Single Port, Active-Passive Dual Port or Single Bus Clustering.
35
imageRAID_160.book Page 36 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Storage System Detailed Installation
This section describes preparing and installing the imageRAID SCSI Series Storage
System enclosure(s) into the rack cabinet or the enclosure into its tower stand
(“Installing the Storage System into the Tower Stand” on page 39).
After installing the hardware components, go to the Enclosure Configuration
section and set the switches on the SAF-TE Disk I/O card and omplete the
cabling for your configuration.
Installing the Storage System Enclosure into the Rack Cabinet
1
Select an appropriate location within your rack cabinet.
Consider the location of the enclosures in relationship to each other and the
host server to ensure the cables will easily reach between them.
CAUTION: The power supplies should be removed prior to installing the
enclosure into the rack cabinet. The enclosure chassis could be
damaged during installation due to the added unbalaced weight of
the power supplies.
NOTE:
2
Make sure the selected location in the rack cabinet has adequate air
flow for the front to side and side to side areas.
Remove the storage system from its shipping carton and inspect for obvious
damage.
Remove and open the accessory kit, and remove the contents. Open the left
and right flaps, and remove the bezel and mounting rails.
Remove the drives from the foam tray, then remove the foam tray from the
box.
Lift the enclosure from the box. Remove the foam from around the it and
place the enclosure on a flat surface to work from.
3
Remove the power supplies.
Grasp the power supply handle and slide the release latch to the right with
your thumb as you pull the power supply from the enclosure. Repeat for the
other power supply.
36
Storage System Detailed Installation
imageRAID_160.book Page 37 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
4
Locate the mounting rails and mounting hardware in the accessory kit (some
installations require cage nuts and others use standard nuts).
NOTE:
5
It will be helpful to have an assistant available during the installation.
Install the rear mounting rails.
Secure the left and right mounting rail to the vertical members using the
screws and nuts provided.
Rail Slot
AD
TO D JU
M
TE SUP PE
RM PLY R
PO
WE
R
JP
1
JP
3
JP
2
JP
4
l1
Ch
l0
Ch
Tx
P-1
JP
4
ne
ne
JP
2
AD
TO D JU
M
T E D IS A P E
RM BL R
IN A E
T IO
N
an
an
AD
TO D JU
M
TE SUP PE
RM PLY R
PO
WE
R
JP
3
M
T E D IS A P E
RM BL R
IN A E
T IO
N
JP ADD
1 TO JU
Ch
Ch
an
an
ne
ne
Rx
l2
l3
Tx
CT
RL
P-2
Rx
1
SA
Tx
P-1
FT
E
Rx
Tx
P-2
CT
Rear Rack Vertical Member
Rx
RL
2
Con
troll
er 2
Con
troll
er 1
Nut
Mounting
Screws
Nut
Rail Slot
Attaching the Rails
6
Lift the enclosure into the rack cabinet and align the rear mounting rails with
the slots at the rear of the enclosure sliding the enclosure onto the rails.
7
Secure each front mounting ear to the vertical member using the supplied
screws and nuts.
NOTE:
Ensure the enclosure is level.
Installing the Storage System Enclosure into the Rack Cabinet
37
imageRAID_160.book Page 38 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Front Rack Vertical
Member
Nut
Mounting
Screw
Nut
Mounting
Screw
Chassis Ear
Attaching the Chassis Ears
8
Re-install the power supplies.
Slide each power supply into its empty bay and ensure it seats completely,
and that the release latch resets.
9
38
Continue now with “Completing the Installation” on page 41.
Installing the Storage System Enclosure into the Rack Cabinet
imageRAID_160.book Page 39 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Installing the Storage System into the Tower Stand
1
Remove the storage system from its shipping carton and inspect for obvious
damage.
Remove and open the accessory kit, and remove the contents. Open the left
and right flaps, and remove the bezel and mounting rails.
Remove the drives from the foam tray, then remove the foam tray from the
box.
Lift the enclosure from the box. Remove the foam from around the it and
place the enclosure on a flat surface to work from.
2
Remove the power supplies.
Grasp the power supply handle and slide the release latch to the right with
your thumb as you pull the power supply from the enclosure. Repeat for the
other power supply.
3
Remove the cooling fan module.
Place your finger in the handle and slide the release latch to the right with
your thumb while pulling it from the enclosure.
4
Remove the tower stand case from its shipping carton and inspect for
obvious damage.
5
Locate the accessory kit in the tower shipping carton. It should contain eight
10-32 pan head screws and conversion instructions. (The Conversion
Instruction enclosed in the box are applicable to converting an existing rack
mount installation to a deskside tower system.)
6
Rotate the enclosure chassis so that the power supply bays are on the top.
7
Carefully slide the enclosure chassis into the tower stand until it fits flush as
indicated by (A) in the illustration on the following page.
8
Secure the top and bottom front mounting ears to the tower stand using two
each 10-32 pan head screws as indicated by (B) in the illustration on the
following page.
9
Install the rear mounting rails into the slots at the rear of the chassis as
indicated by (C) in the illustration on the following page.
Installing the Storage System into the Tower Stand
39
imageRAID_160.book Page 40 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
10 Secure the top and bottom slide rails using the remaining two sets (4) of
10-32 pan head screws.
Mounting
Screw
A
B
Mounting
Screws
C
Mounting
Screws
Inserting and Securing the Chassis
40
Installing the Storage System into the Tower Stand
imageRAID_160.book Page 41 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
11 Re-install the cooling fan module. Slide it into its open bay and ensure it
seats completely, and the release latch resets.
12 Re-install the power supplies. Slide each power supply into its open bay and
ensure it seats completely, and the release latch resets.
13 Continue now with “Completing the Installation” on page 41.
Completing the Installation
1
Install the disk drives.
a
Remove each drive from its anti-static protective packaging. Inspect for
obvious damage.
b
Install each disk drive into a drive slot by aligning the drive carrier rails
with the grooves in the drive bay wall.
The drive carrier tension clips to ensure that it fits snug, so it requires
some force to seat the drive. Repeat this step to populate all the required
drive slots.
Installing Disk Drives
c
Install the front bezel. The bezel mounts to the two front post stud, one
on each mounting ear, and the bezel lip fits under the chassis top.
Completing the Installation
41
imageRAID_160.book Page 42 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
d
Secure the front bezel using a Phillips screwdriver by rotating the
RESET ALARM
fasteners clockwise one-quarter turn.
Res
et A
larm
Attaching the Front Bezel (Rack and Tower Models)
CAUTION:
2
(AC Power Supplies Only) Install the power cords and secure them using the
power cord bales.
NOTE:
a
42
Completing the Installation
Verify that the power supply On/Off switches are in their OFF
position.
For DC Power Supplies, skip to “Cabling the DC Power Supplies” on
page 43.
Ensure that the orientation is such that when the power cord is inserted,
the bale will be on top of the cord and will fit over and onto the cord.
imageRAID_160.book Page 43 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Bale fits over and onto the power cord.
Attaching the Power Cord Bales
b
Connect the other end of the power cord into a three-hole grounded
outlet or UPS power system. A UPS is highly recommended.
c
Repeat steps 2(a) and 2(b) for the other power cord.
NOTE:
3
For DC Power Supply Systems refer to Cabling the DC Power
Supplies below.
Repeat the above steps for each additional storage system enclosure you will
be installing.
This completes the physical hardware installation.
Cabling the DC Power Supplies
NOTE:
Refer to “DC Power Supply Connector Pinout” on page 90 for wiring and
connector details.
If you are using the DC Power Supply system, refer to the following procedures
to properly connect the cables.
1
Plug the connector into the power supply, it is keyed to install only one way.
2
Connect the two Red pair wires to the DC Feed +48VDC connection.
3
Connect the two Green/Yellow pair wires to the DC Feed ground
connection.
4
Connect the two Black pair wires to the DC Feed -48VDC connection.
Cabling the DC Power Supplies
43
imageRAID_160.book Page 44 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Red (2x)
Top two pair
Black (2x)
Middle two pair
Green/Yellow (2x)
Bottom two pair
Red (2x)
Black (2x)
Green/Yellow (2x)
Attaching the DC Cable
5
Repeat the above steps (1 - 4) for the second power supply, if this option
was ordered.
This completes the physical hardware installation.
44
Cabling the DC Power Supplies
imageRAID_160.book Page 45 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Before You Continue...
The next section, Enclosure Configuration, includes steps and diagrams for
setting the SAF-TE Disk I/O card/SCSI SAF-TE Cluster card switches and attaching
the required SCSI data cables for each drive configuration. Locate the applicable
configuration and refer to the steps and diagrams to set the card switches and
cable your system.
The Topology Host Cabling section includes steps and diagrams for cabling the
primary RAID storage enclosure to the host computer(s). Review the procedure
steps, then locate the applicable topology and cable your system based on the
diagrams.
NOTE:
In some circumstances, if the host system does not see the imageRAID
Controllers, remove the Host SCSI I/O card and install the jumpers JP1 and
JP2 on both pins to disable termination. This should resolve the problem.
The last section of this chapter provides the steps to properly power on or power
off your storage system.
Special Note for Microsoft Windows 2000/2003 Installations
At startup you will see the “Found New Hardware Wizard” appear. Although a
driver is not required for the storage system, a driver .inf file is provided on the
Software/Documentation Disc which is installed to satisfy this requirement.
Refer to the ReadMe file located in the Drivers directory on the Software/
Documentation Disc for instructions, then follow the on screen wizard to
complete the driver installation.
Before You Continue...
45
imageRAID_160.book Page 46 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Enclosure Configuration
In this section, configurations are determined by the enclosure model type
(IRS-JBOD or imageRAID IRS-1U160/IRS-2U160), SCSI bus configuration, number
of enclosures and the available number of drives. Follow the steps of procedure for
your configuration to set the switches, jumpers, and connect the SCSI data cables.
imageRAID IRS-JBOD - 12 Drive Configuration
The IRS-JBOD can be setup as a Single-Bus or a Dual-Bus JBOD (Just a Bunch of
Drives) configuration using a single enclosure which provides up to a 12 disk
drive storage solution.
Host
SCSI SAF-TE Clustering Card/
SAF-TE Disk I/O Card
Single Bus
Module
SEP
T
SBE
T
T
T
SBE
CH 2
SEP
CH 1
Drives 7 - 12
Drives 1 - 6
T= Location of internal termination
Connectors
Host
(autosense allows the physical connection
to disable termination)
Logical View of Drive Connectivity - Single-Bus Mode
In Single-Bus Mode, Channel 1 on the SAF-TE Disk I/O card assesses all the
drives 1 through 12. In this mode, a “Single-Bus Module” must be installed in the
Controller 1 slot. This Single-Bus Module connects Channel 1 and Channel 2
creating a single continuous SCSI bus.
SAF-TE Disk I/O
SEP
T
T
CH 1
T
Drives 7 - 12
SEP
Drives 1 - 6
T= Location of internal termination
Drive I/O Connectors
(autosense allows the physical connection
to disable termination)
Logical View of Drive Connectivity - Dual-Bus Mode
46
Enclosure Configuration
CH 2
T
imageRAID_160.book Page 47 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
In Dual-Bus Mode, the Channel 1 connector on the SAF-TE Disk I/O card
provides access to drives 1 through 6 and the Channel 2 connector provides
access to drives 7 through 12.
NOTE:
In the preceding logical view diagrams, the drive slots are used to
indicate which drives are connected to which channel. They should not
be confused with the disk drive SCSI IDs. Those IDs are pre-determined
by the SCSI Disk I/O card switch settings.
1
Remove the SAF-TE Disk I/O card installed in the enclosure. Loosen the two
thumb screws and pull the card from its slot location.
2
Locate the switches on the card and set them as described in the switch
setting diagrams.
Co
nf
Co igura
n tio
RA figura n 1
I
t
Sp D ion 2
are
Sp 1
are
BA 2
U
De D Ra
la t
Re y Drive Sele
mo e S ct
te D ta
rive rt
Sta
rt
Some configurations have multiple switch setting options available, choose
the setting that is appropriate for your system.
Channel 1
Termination Jumper
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR EL
S D S RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L -1
JP8
A A R S SB DR
0 1 D 0 1D LM
TE
UP
AD
D
TO JUM
D IS P E
RM ABLE R
INAT
IO
N
JP
7
1 2 3 4 5 6 7 8
DOWN
TE
AD
D
TO JUM
D IS P E
RM ABLE R
INAT
IO
N
Ch
el 1
CH
AN
NE
L -2
ann
Ch
ann
el 2
Channel 2
Termination Jumper
SAF-TE Disk I/O Card Switch and Jumper Locations
There is one switch setting for Single-Bus mode and two possible settings for
Dual-Bus mode. Refer to the switch setting appropriate for your
configuration and set the switches accordingly. (Refer to the illustrations on
the following page.)
imageRAID IRS-JBOD - 12 Drive Configuration
47
imageRAID_160.book Page 48 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
SAF-TE ID = 15
Single-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
ID 1
ID 3
ID 5
Slot 4
Slot 5
Slot 6
Slot 7
ID 2
Slot 8
ID 4
Slot 9
ID 6
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
DOWN (0)
Single-Bus JBOD Switch Setting
SAF-TE ID = 15/15
Host HBA (ID 0 or 7)
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
ID 1
ID 3
ID 5
Slot 4
Slot 5
Slot 6
ID 2
ID 4
ID 6
Slot 7
Slot 8
Slot 9
ID 1
ID 3
ID 5
Slot 10
Slot 11
Slot 12
ID 2
ID 4
ID 6
Drive IDs of the Drive Slots (Drive Channel Side)
DOWN (0)
Dual-Bus JBOD Switch Setting - Option 1
SAF-TE ID = 15/15
Host HBA (ID 0 or 7)
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 9
ID 11
ID 13
Slot 4
Slot 5
Slot 6
ID 10
ID 12
ID 14
Slot 7
Slot 8
Slot 9
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
Dual-Bus JBOD Switch Setting - Option 2
3
48
Re-install the SAF-TE Disk I/O card. Slide the card into the slot and ensure
that it seats completely. Secure the card by tighten the two thumb screws.
imageRAID IRS-JBOD - 12 Drive Configuration
imageRAID_160.book Page 49 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
4
(Single-Bus Mode Installations Only) Install the Single-Bus Module in the
Controller 1 slot.
a
Remove the Controller Cover plate. Loosen the four thumb screws and
pull the cover plate from the enclosure.
AD
TO D JU
M
TE SUP PE
RM PLY R
PO
WE
R
JP
1
JP
3
JP
4
JP
2
JP
4
AD
TO D JU
M
T E S U P PE
RM PLY R
PO
WE
R
AD
TO D JU
M
T E DISA P E
R M BL R
INA E
TIO
N
JP
3
M
T E DISA P E
R M BL R
INA E
TI O
N
JP ADD
1 TO JU
JP
2
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR EL
S D S RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L -1
JP5
AD
D
TO JUMP
SU
TE PP ER
RM LY
PO
WER
JP8
JP
7
AD
D
TO JUMP
DI
TE SA ER
RM BL
INAT E
IO
N
AD
D
TO JUMP
DI
TE SA ER
RM BL
INAT E
IO
N
JP
6
CH
AN
NE
L -2
AD
D
TO JUMP
SU
TE PP ER
RM LY
PO
WER
Single-Bus
Module
Cover Plate
Single-Bus Module Installation
5
b
Slide the Single-Bus Module in the Controller 1 (lower) slot, and secure it
by pressing the latches into place.
c
Re-install the Controller Cover plate. Tighten the four thumb screws, do
not overtighten.
Connect the SCSI data cable(s) from the host system HBAs to the SAF-TE
Disk I/O card Channel connector(s). Refer to the diagrams on the following
page for cabling details for each mode.
imageRAID IRS-JBOD - 12 Drive Configuration
49
imageRAID_160.book Page 50 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Switches
Ethernet Cables
Ethernet Cables
Host Computer
Host Computer
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Single Bus
Module
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
Cabling Diagrams JBOD Single Enclosure - Single-Bus Mode
Host Computer
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
Dual-Bus Mode
Cabling Diagrams JBOD Single Enclosure - Dual-Bus Mode
This completes the imageRAID IRS-JBOD - 12 Drive Configuration setup, refer to
“Powering On the Storage System” on page 80. Follow your operating system
requirements for preparing new disk drives.
50
imageRAID IRS-JBOD - 12 Drive Configuration
imageRAID_160.book Page 51 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
imageRAID IRS-JBOD - 24 Drive Configuration
The imageRAID IRS-JBOD can also be setup as a Single-Bus JBOD (Just a Bunch
of Drives) configuration with two enclosure which will provide up to a 24 disk
drive (12 per channel) storage solution. In this configuration you can have a
single host system with a single HBA that has dual independent ports or a single
host system with two single port HBAs.
In this configuration both enclosures will be in single-bus mode. Channel 1 on
the SAF-TE Disk I/O card will assess all of the drives 1 through 12. A Single-Bus
Module must be installed in the Controller 1 slot. This Single-Bus Module
connects Channel 1 and Channel 2 together to create a single continuous SCSI
bus.
Host
SCSI SAF-TE Clustering Card/
SAF-TE Disk I/O Card
Single Bus
Module
SEP
T
SBE
T
T
SBE
Drives 1 - 6
T= Location of internal termination
Connectors
Host
(autosense allows the physical connection
to disable termination)
CH 2
SEP
T
CH 1
Drives 7 - 12
Logical View of Connectivity - Single-Bus Mode
NOTE:
In the preceding logical diagram, the drive slots are used to indicate
which drives are connected to which channel. They should not be
confused with the disk drive SCSI IDs. Those IDs are pre-determined by
the SCSI Disk I/O card switch settings.
1
Remove the SAF-TE Disk I/O card installed in both enclosures. Loosen the
two thumb screws and pull the card from its slot location.
2
Locate the switches on each card and set them as described in the switch
setting diagram.
imageRAID IRS-JBOD - 24 Drive Configuration
51
imageRAID_160.book Page 52 Friday, November 14, 2003 4:14 PM
Co
nf
Co igura
n tio
RA figura n 1
I
t
Sp D ion 2
are
Sp 1
are
BA 2
U
De D Ra
la t
Re y Drive Sele
mo e S ct
te D ta
rive rt
Sta
r
t
Chapter 3 - Setup and Installation
Channel 1
Termination Jumper
A A R S SB DR
0 1 D 0 1D LM
1
FG 2
CN FG ID
CN RA 1
E
2
AR E
SP PAR EL
S D S RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L -1
JP8
AD
D
TO JUM
D
TE ISA PER
RM BLE
INAT
IO
N
UP
JP
7
1 2 3 4 5 6 7 8
DOWN
AD
D
TO JUM
D
TE ISA PER
RM BLE
INAT
IO
N
Ch
el 1
CH
AN
NE
ann
L -2
Ch
ann
el 2
Channel 2
Termination Jumper
SAF-TE Disk I/O Card Switch and Jumper Locations
There is one switch setting for both enclosures.
SAF-TE ID = 15
Single-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 1
ID 3
ID 5
Slot 4
Slot 5
Slot 6
ID 2
ID 4
ID 6
Slot 7
Slot 8
Slot 9
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
Single-Bus JBOD Switch Setting
52
3
Re-install the SAF-TE Disk I/O card in each enclosure. Slide the card into the
slot and ensure that it seats completely. Secure the card by tighten the two
thumb screws.
4
Install the Single-Bus Module in the Controller 1 slot in both enclosures.
a
Remove the Controller Cover plate. Loosen the four thumb screws and
pull the cover plate from the enclosure.
b
Slide the Single-Bus Module in the Controller 1 (lower) slot, and secure it
by pressing the latches into place.
c
Re-install the Controller Cover plate. Tighten the four thumb screws, do
not overtighten. Repeat for the second enclosure.
imageRAID IRS-JBOD - 24 Drive Configuration
imageRAID_160.book Page 53 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
NOTE:
5
Refer to the illustration “Single-Bus Module Installation” on page 49.
Connect a SCSI data cable from the host system HBA(s) to the SAF-TE Disk
I/O card Channel 1 connectors on each enclosure.
Host Computer
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Single Bus
Module
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
Single-Bus Mode
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Single Bus
Module
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
Single-Bus Mode
Cabling Diagram JBOD Dual Enclosures
This completes the imageRAID IRS-JBOD - 24 Drive Configuration setup, refer to
“Powering On the Storage System” on page 80. Follow your operating system
requirements for preparing new disk drives.
imageRAID IRS-JBOD - 24 Drive Configuration
53
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Chapter 3 - Setup and Installation
imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration
The imageRAID Storage System can be setup to provide up to a 12 disk drive
storage solution using the primary RAID enclosure only.
1
Remove the SAF-TE Disk I/O card installed in the enclosure. Loosen the two
Co
nf
Co igura
n tio
RA figura n 1
I
t
Sp D ion 2
a
Sp re 1
are
BA 2
U
De D Ra
la t
Re y Drive Sele
mo e S ct
te D ta
rive rt
Sta
rt
thumb screws and pull the card from its slot location.
Channel 1
Termination Jumper
A A R S SB DR
0 1 D 0 1D LM
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR EL
S D S RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L -1
JP8
TE
UP
AD
D
TO JUM
D IS P E
RM ABLE R
INAT
IO
N
JP
7
1 2 3 4 5 6 7 8
DOWN
TE
AD
D
TO JUM
D IS P E
RM ABLE R
INAT
IO
N
Ch
el 1
CH
AN
NE
L -2
ann
Ch
ann
el 2
Channel 2
Termination Jumper
SAF-TE Disk I/O Card Switch and Jumper Locations
2
Locate the switches on the card and set them as described in the following
switch setting diagrams.
There are two possible switch settings for this configuration.
SAF-TE ID = 8/8
RAID Controllers = 6 & 7
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 1
ID 3
ID 5
Slot 4
Slot 5
Slot 6
ID 2
ID 4
ID 0
imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration
Slot 8
Slot 9
ID 1
ID 3
ID 5
Slot 10
Slot 11
Slot 12
Drive IDs of the Drive Slots (Drive Channel Side)
Switch Setting - Option 1
54
Slot 7
ID 2
ID 4
ID 0
imageRAID_160.book Page 55 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
SAF-TE ID = 15/15
RAID Controllers = 6 & 7
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
ID 9
ID 11
ID 13
Slot 4
Slot 5
Slot 6
ID 10
ID 12
ID 14
Slot 7
Slot 8
Slot 9
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
DOWN (0)
Switch Setting - Option 2
The switch settings will assign specific SCSI IDs to the drive slots as
indicated, and reserve IDs 6 and 7 for the RAID Controller(s), and IDs 8 or 15
for the SAF-TE processors.
3
Re-install the SAF-TE Disk I/O card. Slide the card into the slot and ensure
that it seats completely. Secure the card by tighten the two thumb screws.
4
Connect a SCSI data cable(s) from the host system(s) HBA(s) to the Host I/O
card as indicated in “Topology Host Cabling” on page 63.
This completes the imageRAID IRS-1U160/IRS-2U160 -12 Drive Configuration
setup, refer to “Topology Host Cabling” on page 63 and “Powering On the
Storage System” on page 80. Also, refer to the AdminiStor software guide or the
VT-100 software guide for instructions on setting up and configuring the disk
arrays.
imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration
55
imageRAID_160.book Page 56 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
The imageRAID Storage System can be setup to provide up to a 24 disk drive
storage solution (12 per channel).
Remove the SAF-TE Disk I/O card installed in the primary RAID enclosure.
Loosen the two thumb screws and pull the card from its slot location.
Co
nf
Co igura
n tio
RA figura n 1
I
t
Sp D ion 2
are
Sp 1
a
BA re 2
U
De D Ra
la t
Re y Drive Sele
mo e S ct
te D ta
rive rt
Sta
rt
1
Channel 1
Termination Jumper
A A R S SB DR
0 1 D 0 1D LM
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR SEL
S D RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L -1
JP8
AD
D
TO JUM
D
TE ISA PER
RM BLE
INAT
IO
N
UP
JP
7
1 2 3 4 5 6 7 8
DOWN
AD
D
TO JUM
D
TE ISA PER
RM BLE
INAT
IO
N
Ch
el 1
CH
AN
NE
L -2
ann
Ch
ann
el 2
Channel 2
Termination Jumper
SAF-TE Disk I/O Card Switch and Jumper Locations
2
Locate the switches on the card and set them as described in the following
switch setting diagram.
The switch settings will assign specific SCSI IDs to the drive slots as
indicated, and reserve IDs 6 and 7 for the RAID Controller(s), and IDs 8 or 15
for the SAF-TE processors.
SAF-TE ID = 8/8
RAID Controllers = 6 & 7
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 1
ID 3
ID 5
Slot 4
Slot 5
Slot 6
ID 2
ID 4
ID 0
Slot 7
Slot 8
Slot 9
ID 1
ID 3
ID 5
Slot 10
Slot 11
Slot 12
ID 2
ID 4
ID 0
Drive IDs of the Drive Slots (Drive Channel Side)
Switch Setting - Primary RAID Enclosure (IRS-1U160xx-xx/IRS-2U160xx-xx)
56
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
imageRAID_160.book Page 57 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
3
Re-install the SAF-TE Disk I/O card into the primary RAID enclosure. Slide
the card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
4
Remove the SAF-TE Disk I/O card installed in the daisy-chain enclosure
(imageRAID IRS-JBOD). Loosen the two thumb screws and pull the card
from its slot location.
The daisy-chain enclosure will be configured to dual-bus mode. This
provides the drive channel expansion from the primary enclosures’ Disk I/O
channels. Set the switches as described in the following diagram.
SAF-TE ID = 15/15
RAID Controllers = 6 & 7
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 9
ID 11
ID 13
Slot 4
Slot 5
Slot 6
ID 10
ID 12
ID 14
Slot 7
Slot 8
Slot 9
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
Switch Setting - Dual-Bus Daisy-Chain Enclosure (IRS-JBOD)
5
(Daisy-chain enclosure - IRS-JBOD Only) Change the jumper settings on the
SAF-TE Disk I/O card JP7 and JP8 as described.
Locate and configure the two jumpers (JP7 and JP8), refer to the illustration
on the previous page. Add a jumper (installed on both pins) to JP8 for
Channel 1 and JP7 for Channel 2.
This will ensure that the automatic termination feature functions properly.
6
Re-install the SAF-TE Disk I/O card into the daisy-chain enclosure. Slide the
card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
7
Connect the SCSI data cables from the imageRAID IRS-1U160/IRS-2U160
enclosure to the imageRAID IRS-JBOD enclosures’ SAF-TE Disk I/O card as
indicated in the following cabling diagram.
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
57
imageRAID_160.book Page 58 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
Chl 3
Host I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-1U160
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
Enclosure Cabling Diagram
8
Connect a SCSI data cable(s) from the host system(s) HBA(s) to the Host I/O
card as indicated in “Topology Host Cabling” on page 63.
This completes the imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
setup, refer to “Topology Host Cabling” on page 63 and “Powering On the
Storage System” on page 80. Also refer to the AdminiStor software guide or the
VT-100 software guide for instructions on setting up and configuring the disk
arrays.
58
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
imageRAID_160.book Page 59 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
imageRAID IRS-1U160 - 36 Drive Configuration
Only the imageRAID IRS-1U160 model Storage System can be setup in this
Stand-Alone Single Port mode configuration. It provides up to a 36 disk drive
storage solution (12 per channel). This is due to one of the Host SCSI I/O ports
(CH 3) is used as a drive channel to provide the additional connectivity for the
second imageRAID IRS-JBOD enclosure.
Remove the SAF-TE Disk I/O card installed in the primary RAID enclosure.
Loosen the two thumb screws and pull the card from its slot location.
Co
nf
Co igura
n tio
RA figura n 1
I
t
Sp D ion 2
are
Sp 1
are
BA 2
U
De D Ra
la t
Re y Drive Sele
mo e S ct
te D ta
rive rt
Sta
rt
1
Channel 1
Termination Jumper
A A R S SB DR
0 1 D 0 1D LM
1
FG 2
CN FG ID
CN RA 1
E
2
AR E
SP PAR SEL
S D RT
U ST T
BA LY STR
D T
RM
CH
AN
NE
L -1
JP8
TE
UP
AD
D
TO JUM
DIS PE
RM ABLE R
INAT
IO
N
JP
7
1 2 3 4 5 6 7 8
DOWN
AD
D
TO JUM
D
TE ISA P ER
RM BLE
INAT
IO
N
Ch
el 1
CH
AN
NE
ann
L -2
Ch
ann
el 2
Channel 2
Termination Jumper
SAF-TE Disk I/O Card Switch and Jumper Locations
2
Locate the switches on the card and set them as described in the following
switch setting diagram.
The switch settings will assign specific SCSI IDs to the drive slots as
indicated, and reserve IDs 6 and 7 for the RAID Controller(s), and IDs 8 or 15
for the SAF-TE processors.
SAF-TE ID = 8/8
RAID Controllers = 6 & 7
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 1
ID 3
ID 5
Slot 4
Slot 5
Slot 6
ID 2
ID 4
ID 0
Slot 7
Slot 8
Slot 9
ID 1
ID 3
ID 5
Slot 10
Slot 11
Slot 12
ID 2
ID 4
ID 0
Drive IDs of the Drive Slots (Drive Channel Side)
Switch Setting - Primary RAID Enclosure (IRS-1U160xx-xx)
imageRAID IRS-1U160 - 36 Drive Configuration
59
imageRAID_160.book Page 60 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
3
Re-install the SAF-TE Disk I/O card in the primary RAID enclosure. Slide the
card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
4
Remove the SAF-TE Disk I/O card installed in the first daisy-chain enclosure
(imageRAID IRS-JBOD). Loosen the two thumb screws and pull the card
from its slot location.
The first daisy-chain enclosure will be configured to dual-bus mode. This
provides the drive channel expansion from the primary enclosures’ Disk I/O
channels. Set the switches as described in the following diagram.
SAF-TE ID = 15/15
RAID Controllers = 6 & 7
Dual-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 9
ID 11
ID 13
Slot 4
Slot 5
Slot 6
ID 10
ID 12
ID 14
Slot 7
Slot 8
Slot 9
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
Switch Setting - Dual-Bus Daisy-Chain Enclosure (IRS-JBOD)
5
Configure the jumper settings on this first daisy-chain enclosure SAF-TE Disk
I/O card.
Locate and add (installed on both pins) the two jumpers at JP7 and JP8, refer
to the illustration on the previous page. The default position of the jumpers
are offset (installed on one pin only).
This will ensure that the automatic termination feature functions properly.
60
6
Re-install the SAF-TE Disk I/O card into the first daisy-chain enclosure. Slide
the card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
7
Remove the SAF-TE Disk I/O card installed in the second daisy-chain
enclosure (imageRAID IRS-JBOD). Loosen the two thumb screws and pull
the card from its slot location.
8
Locate the switches on the card and set them as described in the following
switch setting diagram.
9
Configure the jumper settings on this second daisy-chain enclosure SAF-TE
Disk I/O card.
imageRAID IRS-1U160 - 36 Drive Configuration
imageRAID_160.book Page 61 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
SAF-TE ID = 15
RAID Controllers = 6 & 7
Single-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 5
ID 3
Slot 3
Slot 6
ID 5
UP (1)
1 2 3 4 5 6 7 8
Slot 4
ID 1
Slot 7
ID 2
Slot 8
ID 4
Slot 9
ID 0
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
DOWN (0)
Switch Setting - Single-Bus Daisy-Chain Enclosure (IRS-JBOD)
Locate and add (installed on both pins) the two jumpers at JP7 and JP8. The
default position of the jumpers are offset.
10 Re-install the SAF-TE Disk I/O card into the second daisy-chain enclosure.
Slide the card into the slot and ensure that it seats completely. Secure the
card by tighten the two thumb screws.
11 Connect the SCSI data cables from the imageRAID IRS-1U160 to the
imageRAID IRS-JBOD enclosures as indicated in the following cabling
diagram.
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
Host I/O
Chl 0
Chl 3
Host I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-1U160
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Single Bus
Module
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
Enclosure Cabling Diagram
imageRAID IRS-1U160 - 36 Drive Configuration
61
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Chapter 3 - Setup and Installation
12 Connect a SCSI data cable(s) from the host system(s) HBA(s) to the Host SCSI
I/O card as indicated in “Topology Host Cabling” on page 63.
This completes the imageRAID IRS-1U160 - 36 Drive Configuration setup, refer to
“Topology Host Cabling” on page 63 and “Powering On the Storage System” on
page 80. Also, refer to the AdminiStor software guide or the VT-100 software
guide for instructions on setting up and configuring the disk arrays.
62
imageRAID IRS-1U160 - 36 Drive Configuration
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Chapter 3 - Setup and Installation
Topology Host Cabling
This section provides instructions for the physical cabling between the primary
imageRAID enclosure and your host system(s). The topologies are determined by
the number of imageRAID Controllers installed and the operating modes of the
imageRAID Controllers. Refer to “Theory of Controller Operation” on page 21 for
detailed information describing each operating mode.
NOTE:
In some circumstances, if the host system does not see the imageRAID
Controllers, remove the Host SCSI I/O card and install the jumpers JP1 and
JP2 on both pins to disable termination. This should resolve the problem.
Basic Connection Instructions
1
Install your host bus adapter(s) into the host system(s). Refer to your HBA
user’s guide and any applicable nStor Attach Kit for specific details.
2
For multiple LUN support, ensure that your host operating system is properly
configured to support this feature. Refer to your host operating system user’s
guide for information on how to perform this procedure.
3
Connect the SCSI data cables. Refer to the topology described for your
solution on the following pages, and cable your system based on the
diagrams shown.
a
Connect the required SCSI data cable(s) to the host system’s SCSI host
bus adapter port connector(s).
b
Connect the other end of those SCSI data cable(s) to the storage
enclosure Host Channel ports on the Host SCSI I/O card(s) as indicated.
4
Continue now with “Powering On the Storage System” on page 80.
5
After powering up all the system(s), you may need to set the operating mode.
By default the imageRAID Controller’s operating mode are set to
“Active-Active Single Port.” Access the AdminiStor software or VT-100
on-board software and make the necessary changes to the operating mode.
The selections will be:
•
•
•
•
6
Stand-Alone Single Port
Stand-Alone Dual Port
Active-Active Single Port
Active-Passive Dual Port
Using either AdminiStor or VT-100, configure the disk arrays as desired.
Topology Host Cabling
63
imageRAID_160.book Page 64 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Stand-Alone Single Port:Host Cabling
This topology is chosen when the desired application requires a low cost entry
level, fault-tolerant disk storage solution. This solution provides a single controller
configuration that supports a single or dual host(s), and up to three disk channels.
Setup for a Single Host (One HBA)
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
Controller Host Ports
imageRAID Controller
I/O Card
T
T
Disk
CH1
(CH3) Disk
Channel
Disk
CH2
Drives 7 - 12
T
SEP
T
Controller 1
SEP
T
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
T
CH 0
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone Single Port Logical Diagram
Host Computer
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-1U160
Host Cabling Diagram - Single Host with a Single HBA
64
Stand-Alone Single Port:Host Cabling
T
CH 2
CH 3
(CH0) Active
CH 1
Host System
HBA 1
CH 0
imageRAID_160.book Page 65 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Setup for a Dual Hosts (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
Controller Host Ports
imageRAID Controller
I/O Card
T
T
Disk
CH1
(CH3) Disk
Channel
Disk
CH2
Drives 7 - 12
T
SEP
T
Controller 1
SEP
T
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
Host System #2
HBA 1
CH 0
T
CH 2
CH 3
(CH0) Active
CH 1
Host System #!
HBA 1
CH 0
T
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone Single Port Logical Diagram
Host Computer #1
Host Computer #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-1U160
Host Cabling Diagram - Dual Host (Single HBAs)
Stand-Alone Single Port:Host Cabling
65
imageRAID_160.book Page 66 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Stand-Alone Dual Port:Host Cabling
This topology is chosen when the desired application requires a low cost
high-performance, fault-tolerant disk storage solution with multiple paths to
storage. This solution provides a single controller configuration that supports
multiple or dual ported access to one or more host system computers.
Setup for a Single Host (Two HBAs)
Connect the SCSI data cables as described in the following diagrams.
Controller Host Ports
Drive I/O Connectors
imageRAID Controller
I/O Card
Host System #1
HBA 2
CH 3
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
Drives 7 - 12
T
SEP
T
T
Controller 1
SEP
T
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
T
CH 0
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone Dual Port Logical Diagram
Host Computer #1
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
Ctlr 2
imageRAID IRS-1U160
Host Cabling Diagram - Single Host (Two HBAs)
66
Stand-Alone Dual Port:Host Cabling
T
RAID Controller
CH 2
CH 0
CH 1
Host System #1
HBA 1
imageRAID_160.book Page 67 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Setup for a Dual Hosts (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Controller Host Ports
Drive I/O Connectors
imageRAID Controller
I/O Card
Host System #2
HBA 1
CH 3
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
Drives 7 - 12
T
SEP
T
T
T
SEP
T
Controller 1
CH 2
CH 0
CH 1
Host System #1
HBA 1
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
T
CH 0
Controller Disk Ports
T
CH 3
T= Location of internal termination
Host I/O Connectors
Stand-Alone Dual Port Logical Diagram
Host Computer #1
Host Computer #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-1U160
Host Cabling Diagram - Dual Host (Single HBAs)
Stand-Alone Dual Port:Host Cabling
67
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Chapter 3 - Setup and Installation
Setup for a Dual Host - Quad Cabling (Two HBAs) - Shared SCSI Bus
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
Controller Host Ports
imageRAID Controller
I/O Card
CH 3
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
Drives 7 - 12
T
SEP
T
T
SEP
T
Controller 1
Drives 1 - 6
SAF-TE Disk I/O
I/O Card
Host System #2
HBA 1
CH 0
Host System #2
HBA 2
CH 3
T
Controller Disk Ports
T
T= Location of internal termination
Host I/O Connectors
Stand-Alone Dual Port Logical Diagram
SCSI Data Cable
SCSI Data Cable
Host Computer #1
Host Computer #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-1U160
Host Cabling Diagram - Dual Host - Quad Cabling (Two HBAs)
68
Stand-Alone Dual Port:Host Cabling
T
CH 2
Host System #1
HBA 2
T
CH 1
Host System #1
HBA 1
CH 0
imageRAID_160.book Page 69 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Active-Active Single Port:Host Cabling
This topology is chosen when the desired application requires a high-performance
robust full system level fault-tolerant disk storage solution and transparent
controller failover/failback. This dual controller configuration supports a host
with a single port HBA and is ideal when the host driver software will not
support LUNs that appear twice.
Setup for Single Host (One HBA)
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
RAID Controller
I/O Card
(CH0) Active
Disk
CH1
(CH3) Passive
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
SEP
CH 2
CH 3
Drives 7 - 12
T
CH 1
Host System #1 HBA #1
CH 0
SAF-TE Disk I/O
RAID Controller
Jumper Cable
I/O Card
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Active
Disk
CH2
T
T
T
Controller 2
T= Location of internal termination
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Active Single Port Logical Diagram
Host Computer
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
RAID Controller
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
SCSI Jumper Cable
imageRAID IRS-2U160
Host Cabling Diagram - Single Host (One HBA)
Active-Active Single Port:Host Cabling
69
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Chapter 3 - Setup and Installation
Setup for Single Host (Two HBAs)
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
RAID Controller
I/O Card
(CH0) Active
Disk
CH1
(CH3) Passive
Disk
CH2
SEP
T
T
T
Host System #1 HBA #2
Drives 1 - 6
Controller 1
SEP
SAF-TE Disk I/O
RAID Controller
I/O Card
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Active
Disk
CH2
T
T
T
Controller 2
T= Location of internal termination
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Active Single Port Logical Diagram
Host Computer
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
RAID Controller
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-2U160
Host Cabling Diagram - Single Host (Two HBAs)
70
Active-Active Single Port:Host Cabling
CH 2
CH 3
Drives 7 - 12
T
CH 1
Host System #1 HBA #1
CH 0
imageRAID_160.book Page 71 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Setup for Dual Host (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
RAID Controller
I/O Card
CH 3
(CH0) Active
Disk
CH1
(CH3) Passive
Disk
CH2
SEP
T
T
T
SEP
Drives 1 - 6
Controller 1
CH 2
Host System #2 HBA #1
Drives 7 - 12
T
CH 1
Host System #1 HBA #1
CH 0
SAF-TE Disk I/O
RAID Controller
I/O Card
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Active
Disk
CH2
T
T
T
Controller 2
T= Location of internal termination
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Active Single Port Logical Diagram
Host Computer #1
Host Computer #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
RAID Controller
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-2U160
Host Cabling Diagram - Dual Host (Single HBAs)
Active-Active Single Port:Host Cabling
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Chapter 3 - Setup and Installation
Setup for Dual Host -Dual HBAs (Quad Cabling)
This setup will provide an isolated SCSI bus. Connect the SCSI data cables as
described in the following diagrams.
Drive I/O Connectors
RAID Controller
I/O Card
CH 3
(CH0) Active
Disk
CH1
(CH3) Passive
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
SEP
SAF-TE Disk I/O
RAID Controller
I/O Card
Host System #1 HBA #2
Host System #2 HBA #2
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Active
Disk
CH2
T
T
T
Controller 2
T= Location of internal termination
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Active Single Port Logical Diagram
SCSI Data Cable
SCSI Data Cable
Host Computer #1
Host Computer #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
RAID Controller
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-2U160
Host Cabling Diagram - Dual Host - Dual HBAs
72
Active-Active Single Port:Host Cabling
CH 2
Host System #2 HBA #1
Drives 7 - 12
T
CH 1
Host System #1 HBA #1
CH 0
imageRAID_160.book Page 73 Friday, November 14, 2003 4:14 PM
Chapter 3 - Setup and Installation
Setup for Dual Host -Dual HBAs (Quad Cabling)
This setup is ideal for clustering configurations. Connect the SCSI data cables as
described in the following diagrams.
Drive I/O Connectors
RAID Controller
I/O Card
CH 3
(CH0) Active
Disk
CH1
(CH3) Passive
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
SEP
CH 2
Host System #2 HBA #1
Drives 7 - 12
T
CH 1
Host System #1 HBA #1
CH 0
SAF-TE Disk I/O
RAID Controller
I/O Card
Host System #2 HBA #2
Host System #1 HBA #2
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Active
Disk
CH2
T
T
Controller 2
T
T= Location of internal termination
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Active Single Port Logical Diagram
HBA 2
HBA 1
HBA 2
SCSI Data Cable
HBA 1
SCSI Data Cable
Host Computer #1
Host Computer #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
RAID Controller
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-2U160
Host Cabling Diagram - Dual Host - Dual HBAs
Active-Active Single Port:Host Cabling
73
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Chapter 3 - Setup and Installation
Active-Passive Dual Port:Host Cabling
This topology is chosen when the desired application requires a high-performance
robust full system level fault-tolerant disk storage solution. This dual controller
configuration supports multiple hosts and failover and failback operations. All
LUNs are available to all hosts.
Setup for Single Host (Two HBAs)
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
RAID Controller
I/O Card
CH 3
Drives 7 - 12
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
SEP
T
T
T
Drives 1 - 6
Controller 1
SEP
SAF-TE Disk I/O
RAID Controller
I/O Card
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Passive
Disk
CH2
T
T
T= Location of internal termination
T
Controller 2
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Passive Dual Port Logical Diagram
Host Computer
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
RAID Controller
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-2U160
Host Cabling Diagram - Single Host (Two HBAs)
74
Active-Passive Dual Port:Host Cabling
CH 2
Host System #1 HBA #2
CH 0
CH 1
Host System #1 HBA #1
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Chapter 3 - Setup and Installation
Setup for Dual Host (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Drive I/O Connectors
RAID Controller
I/O Card
CH 3
Drives 7 - 12
T
(CH0) Active
Disk
CH1
(CH3) Active
Disk
CH2
SEP
T
T
T
SEP
Drives 1 - 6
Controller 1
CH 2
Host System #2 HBA #1
CH 0
CH 1
Host System #1 HBA #1
SAF-TE Disk I/O
RAID Controller
I/O Card
CH 0
CH 3
T
(CH0) Passive
Disk
CH1
(CH3) Passive
Disk
CH2
T
T
T= Location of internal termination
T
Controller 2
Controller Disk Ports
Host I/O Connectors
Controller Host Ports
Active-Passive Dual Port Logical Diagram
Host Computer #1
Host Computer #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Cooling
Fans
Chl 2
I/O
Chl 0
RAID Controller
Chl 3
I/O
Chl 0
Ctlr 1
SAF-TE
Chl 3
RAID Controller
Ctlr 2
imageRAID IRS-2U160
Host Cabling Diagram - Dual Host (Single HBAs)
Active-Passive Dual Port:Host Cabling
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Chapter 3 - Setup and Installation
Single Bus Clustering Configuration
The enclosure is setup as a Single-Bus configuration using a single enclosure
which provides up to a 12 disk drive storage solution in a clustered environment.
Host
SCSI SAF-TE Clustering Card/
SAF-TE Disk I/O Card
Single Bus
Module
SEP
T
SBE
T
T
SBE
Drives 1 - 6
T= Location of internal termination
Connectors
Host
(autosense allows the physical connection
to disable termination)
CH 2
SEP
T
CH 1
Drives 7 - 12
Logical View of Drive Connectivity - Single-Bus Mode
In Single-Bus Mode access to the drives can occur through Channel 1 or Channel
2. A “Single-Bus Module” must be installed in the Controller 1 (lower) slot. This
module connects Channel 1 and Channel 2 creating a single continuous SCSI bus.
NOTE:
In the preceding logical diagram, the drive slots are used to indicate
which drives are connected to which channel. They should not be
confused with the disk drive SCSI IDs. Those IDs are pre-determined by
the SCSI SAF-TE Cluster card switch settings.
1
Remove the SCSI SAF-TE Clustering card installed in the enclosure. Loosen
the two thumb screws and remove the card from its slot location.
2
Locate the switches on the card and set them as described in the switch
setting diagrams.
Some configurations have multiple switch setting options available, choose
the setting that is appropriate for your system.
76
Single Bus Clustering Configuration
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Chapter 3 - Setup and Installation
Channel 1
Termination Jumper
A A R S SB DR
0 1 D 0 1D LM
1
FG 2
CN FG ID
CN RA 1
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AR E
SP PAR SEL
S D RT
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BA LY STR
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7
1 2 3 4 5 6 7 8
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A R
NAT
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ann
TO
RM
I
Ch
L -2
Ch
ann
el 2
Channel 2
Termination Jumper
SCSI SAF-TE Clustering Card Switch and Jumper Locations
There is one switch setting, refer to the switch setting illustration below and
verify the switches are set as illustrated.
SAF-TE ID = 15
Single-Bus Mode
Switch Settings
Slot 1
A A R S SB DR
0 1 D 0 1D LM
Slot 2
Slot 3
UP (1)
1 2 3 4 5 6 7 8
DOWN (0)
ID 1
ID 3
ID 5
Slot 4
Slot 5
Slot 6
ID 2
ID 4
ID 6
Slot 7
Slot 8
Slot 9
ID 9
ID 11
ID 13
Slot 10
Slot 11
Slot 12
ID 10
ID 12
ID 14
Drive IDs of the Drive Slots (Drive Channel Side)
Single-Bus Switch Setting
3
Re-install the SCSI SAF-TE Clustering card. Slide the card into the slot and
ensure that it seats completely. Secure the card by tighten the two thumb
screws.
4
Install the Single-Bus Module in the Controller 1 slot.
a
Remove the Cover plate. Loosen the six thumb screws and pull the cover
plate from the enclosure.
b
Slide the Single-Bus Module in the Controller 1 (lower) slot, and secure it
by pressing the latches into place.
c
Re-install the Cover plate. Tighten the six thumb screws, do not
overtighten.
Single Bus Clustering Configuration
77
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Chapter 3 - Setup and Installation
JP
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Single-Bus
Module
Cover Plate
Single-Bus Module Installation
5
Connect the SCSI data cable(s) from the host system HBAs to the SCSI
SAF-TE Clustering card.
Switches
Ethernet Cables
Ethernet Cables
Host Computer
Host Computer
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Chl 1
Power
Supply
Power
Supply
Chl 2
Cooling
Fans
Single Bus
Module
Ctlr 1
SAF-TE
Ctlr 2
imageRAID IRS-JBOD
Cabling Diagrams Single Enclosure - Single-Bus Mode
This completes the setup, refer to “Powering On the Storage System” on page 80.
Follow your operating system requirements for preparing new disk drives.
78
Single Bus Clustering Configuration
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Chapter 3 - Setup and Installation
Upgrades
At some point you may have a need to upgrade your storage system to increase
the storage capacities and/or the RAID capabilities. The imageRAID SCSI Series
Storage System provides you with this ability to meet your expanding data
storage requirements.
The imageRAID controllers support a feature know as “drive roaming,” where the
controllers can keep track of which drive belong to which logical arrays. In the
event the drives’ enclosure is changed or they are moved to another enclosure
attached to the same set of controllers, the arrays will not be lost or damaged.
The upgrade process is relatively easy, you simply refer to the new Enclosure
Configuration section to find the new configuration that supports the number of
enclosures/drives you will be adding. Set the enclosure SAF-TE Disk I/O card(s)
switch settings for the new configuration and cabling the storage system enclosures
as indicated. Then, if applicable, refer to the Topology Host Cabling section to
locate the new topology and re-cable your new configuration as indicated.
NOTE:
Changing operating mode topologies may have an effect on which
configuration you may use. Refer to the Enclosure Configuration section
and the Topology Host Cabling section to ensure that you have selected
a configurations that is supported. Refer to “Operating Modes Overview”
on page 21 for more information.
NOTE:
You will not be required to move disk drives around in the enclosure(s),
the Drive Roaming feature will locate those drives when the entire
system is powered back up.
Upgrades
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Chapter 3 - Setup and Installation
Powering On the Storage System
After you have the system setup and installed, you are ready to power on the
storage system enclosure(s).
NOTE:
Ensure that none of the data cables or power cables are obstructing the
air flow exiting the cooling fan module.
1
Locate the power supply On/Off switches at the rear of the enclosure(s).
2
Press each power supply switch to its “On” position. (Repeat this step for
each of the attached storage system enclosure(s).)
All enclosures will perform a power on self test during their initial start.
3
Next power on the host computer(s) which is connected to the storage
system.
Powering Off the Storage System
NOTE:
80
If you are planning to completely shut down the entire system, power
down the host system first.
1
If applicable, ensure that the controller(s) have been gracefully shut down.
Refer to “Shutdown Both” in the VT-100 or AdminiStor software guides.
2
Press each enclosure’s power supply On/Off switches to their “Off” position.
3
Repeat the above step for each of the attached storage system enclosure(s).
Powering On the Storage System
imageRAID_160.book Page 81 Friday, November 14, 2003 4:14 PM
Chapter 4
Accessing the imageRAID Controllers
There are two types of software user interfaces provided to access, configure and
manage the imageRAID Controllers; they are AdminiStor Storage Management
software and the controller’s onboard Disk Array Administrator software.
AdminiStor is a HTML/Java application that provides a GUI interface through a
standard web browser for configuration and management of the disk arrays.
The onboard firmware-based Disk Array Administrator software provides a
VT-100 terminal interface which is accessed by directly attaching to either one or
both controllers service ports.
For detailed software information. refer to the AdminiStor Software Guide or the
VT-100 Software Guide.
With either software product, you can:
■
View component status.
■
Create and manage disk arrays.
■
Monitor system status.
■
Manage drive spares.
■
Configure the controller.
■
Manage disk drives and enclosure components.
At the end of this chapter are procedures for updating the imageRAID
Controller’s onboard firmware.
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Chapter 4 - Accessing the imageRAID Controllers
Accessing the Disk Array Administrator Software/VT-100
You can gain access to the imageRAID Controller firmware-based Disk Array
Administrator software using a VT-100 terminal accessed through one of the RS-232
controller service ports located at the rear of the enclosure. You must use a
null-modem serial cable to connect the terminal to either the Controller 1 (CTRL 1)
or Controller 2 (CTRL 2) service ports. It is recommended to connect to the specific
controller to which you wish to access. For example; in an active-active
configuration where Controller 1 is the primary controller, access the arrays and
utilities through the CTRL1 port.
Configure your host system or terminal RS-232 port to use the following settings:
Setting
Value
Terminal Emulation
VT-100 or ANSI (for color support)
Font
Terminal
Translations
None
Columns
80
Set the communications parameters for the terminal program as follows:
Setting
Value
Baud Rate
115,200
Data Bits
8
Stop Bits
1
Parity
None
Flow Control
None
Connector
COM1 (typically)
To access the controllers using a VT-100 terminal:
1
From the computer or terminal connected to one of the controller ports, start
your terminal or terminal emulation software.
Be sure that your terminal emulation software is set to use the correct COM
port on your computer. See Terminal Emulator and COM Port Problems in
chapter 6 for more details on how it can auto-detect the baud rate.
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Accessing the Disk Array Administrator Software/VT-100
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Chapter 4 - Accessing the imageRAID Controllers
The initial Boot and POST screens are displayed.
Boot and POST Screen
2
Following the Boot and POST screens the System Menu is displayed.
System Menu Screen
3
You can now perform all of the functions described in the following
chapters. All steps start from the System Menu.
If an event has occurred, you will see a message about the problem. This
message will also be stored in the event log.
Accessing the Disk Array Administrator Software/VT-100
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Chapter 4 - Accessing the imageRAID Controllers
Menu System
Below and on the next page are charts of the menu system for the onboard Disk
Array Administrator software. These are provided to assist you with quickly
locating a specific software function within the menu system.
Array Menu
Array Status
Drive Status
Abort Initialization
Verify Function
Expand Function
Add Spare
Delete Spare
Change Array name
Trust Array
* Switch Array Owner
Partition Menu
Add a Partition
Delete a Partition
Verify Function
Start Verify
View Verify Status
Abort Verify
Expand Function
Start Expand
View Expand Status
Add an Array
Enter Array Name
Single Partition
Enter LUN
Select RAID Type
Number of Drives
Select Drives
Chunk Size
Number of Spares
System Menu
Array Menu
Add an Array
Delete an Array
Pool Spare Menu
Display Drives
All Partitions Menu
Configuration Menu
Utilities Menu
Event Log Menu
* Other Controller Menu
Shutdown/Restart
Pool Spare Menu
Display Pool Spare
Add Pool Spare
Delete Pool Spare
Partition Statistics
Partition Menu
* Applicable only with dual controllers.
Partition Status
Partition Statistics
Expand Partition
Change LUN
Change Partition Name
Delete This Partition
Disk Array Administrator Software Menu 1 of 2
84
Menu System
View Statistics
Reset Statistics
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Chapter 4 - Accessing the imageRAID Controllers
Menu System (continued)
Set Date/Time
Set Time
Set Date
Configuration Menu
Set Date/Time
Host Configuration
Channel Configuration
SEP Configuration
Disk Configuration
Backoff Percent
Utility Priority
Alarm Mute
Option Configuration
Restore Defaults
Host Configuration
Channel 0 or 1
Enable/Disable
Target ID
Controller LUN
Topology (Loop or Point-to-Point)
* Reset on Failover
Channel Configuration
Channel
Bus Speed
Disable Domain Validation
Initiator ID
SEP LUNs
SEP Settings
SEP LUN
System Menu
Array Menu
Add an Array
Delete an Array
Pool Spare Menu
Display Drives
All Partitions Menu
Configuration Menu
Utilities Menu
Event Log Menu
* Other Controller Menu
Shutdown/Restart
Utilities Menu
Rescan
Hot Swap Pause
Hardware Information
LUN Information
Drive Utilities Menu
Overall Statistics
* Other Controller Menu
Other Information
Kill Other
Unkill Other
Shutdown Other
Shutdown Both
* Applicable only with dual controllers.
Disk Configuration
Write-Back Cache
SMART
SEP Settings
Poll Rate
Temperature
Slot Flags
Global Flags
Option Configuration
Operating Mode
Cache Lock
Battery
Trust Array
Dynamic Spare Configuration
Enclosure Features
Drive Utilities Menu
Blinik Drive LED
Clear Metadata
Down Drive
Test Unit Ready
Display Drive Cache
Overall Statistics
View Statistics
View R/W Histogram
Reset All Statistics
Disk Array Administrator Software Menu 2 of 2
Menu System
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Chapter 4 - Accessing the imageRAID Controllers
Updating imageRAID Controller Firmware
The following information describes the procedures to upload new firmware to
the imageRAID Controllers. The firmware is uploaded offline and during the boot
process.
1
Connect one end of the null-modem RS-232 cable to the imageRAID
Controller 1 Service port located on the rear panel of the enclosure.
CTR
L1
SA
Controller 1: Service Port
F-T
E
CTR
L2
SAF-TE Service Port
Controller 2: Service Port
Connecting the RS-232 Cable
The cable is a female-to-female DB-9 null-modem serial cable.
2
Connect the other end of the cable to either a host system’s serial
communication port or a VT-100 type terminal.
3
On a host system, run a terminal emulation program or start the terminal.
4
Verify the communication parameters are as follows:
•
115,200 Baud
This is the speed at which the controller is communicating.
•
•
•
•
86
8 Data bits
1 Stop bit
None (parity)
Flow Control Off
5
Boot the imageRAID Controller Enclosure.
6
When the boot information appears on the screen press the <Space Bar>.
Updating imageRAID Controller Firmware
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Chapter 4 - Accessing the imageRAID Controllers
FLASH Loader Screen
7
Select option “3” xmodem by pressing the <3> key.
FLASH Loader Waiting for Transfer Selection Screen
8
Using the mouse, click on the pull-down menu Transfers and select “Send.”
Updating imageRAID Controller Firmware
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Chapter 4 - Accessing the imageRAID Controllers
Send File Screen
9
Click the browse button and locate the new Firmware file and click “Send.”
The firmware file will have a “.fla” extension.
NOTE:
Ensure that the protocol “Xmodem” is selected.
From the Xmodem send screen you can monitor the progress of the upload.
You can safely stop the transfer without affecting your existing firmware any
time during the transfer until it has been completed. The upload does not
overwrite the firmware during the upload process, it writes the new code
into unused EEPROM space until completed, then copies the new firmware
code to the EEPROM active region.
If you elect to stop an upload progress, ensure that the stop (abort)
command was completed by typing <Control-X> at the cursor.
10 After the upload is successful, the Flash Loader will reboot the controllers.
During the reboot it will bring the second controller offline, if applicable, and
update its firmware.
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Chapter 5
Monitoring Systems
In this chapter you will find information about using the enclosure’s onboard
monitoring systems. Also you will find procedures to update the enclosure’s
SAF-TE Disk I/O card firmware.
Using a VT-100 terminal (or emulation), the SAF-TE RS-232 Service port provides
an interface to the enclosure’s monitoring system and firmware.
You should monitor your storage system regularly to ensure that the disk drives,
controllers, arrays, and enclosure components are working properly. The front
bezel LEDs provide monitoring information on enclosure components, fan status,
disk drive status, controller status, and array monitoring. The “One-Touch
Annunciation” Configuration Display provides information about switch settings,
I/O card and controller presence from the touch of a button.
NOTE:
Refer to your software user’s guide that accompanied your product for
details on configuring and setting up the logical arrays and imageRAID
Controllers.
Enclosure Component Monitoring
This section covers notifications provided by the front bezel LEDs and a detailed
explanation of the “One-Touch Annunciation” monitoring system.
As part of the monitoring notifications, an audible alarm works in conjunction
with the enclosure’s LEDs, and will sound an alert for any fault that occurs with
an enclosure component, logical array, or disk drive. To silence the alarm, simply
press the Alarm Reset button.
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Chapter 5 - Monitoring Systems
Status Indicator LEDs
The Status Indicator LEDs located above the Alarm Reset button, comprise the
Power-On LED, Channel Status LED, Power Supply Status LED, and Fan Status
LED. The following are descriptions of each of the LEDs.
Power-On LED
The Power-On LED signifies that the enclosure is powered on and will be
illuminated green when power has been applied.
Channel Status LED
The Channel Status LED will remain green at all times when the enclosure is
setup in JBOD mode.
The LED will indicate the status of the logical array(s), when enclosure is setup in
a imageRAID configuration. It will also indicate a failed controller by alternately
blinking green and amber when a failure does occurs.
Power Supply Status
The Power Supply Status LED indicates the condition of the power supplies. The
LED will illuminate steady green when both power supplies are functioning
normally and will change to amber if one of the power supplies should fail or be
turned off.
A failed power supply can be identified by the illumination of the amber “Fault”
LED located on the power supply.
Fan Status
The Fan Status LED indicates the condition of the cooling fans. The LED will
illuminate green when bath fans are functioning normally and will change to
amber if any of the fans fail.
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Status Indicator LEDs
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Chapter 5 - Monitoring Systems
Drive LEDs
The Drive LEDs are located on the left side of the front bezel in between the
ventilation ribs and comprise the Drive Status LEDs and Drive Activity LEDs. The
Drive LEDs are grouped in pairs and are in the general location of the drive slot.
These Drive LEDs assist with identifying which drive is experiencing I/O activity,
array status, and the presence of a drive in a drive slot.
The Drive Status LEDs comprise the “One-Touch Annunciation” monitoring
system which can display the status of controllers and SAF-TE Disk I/O or SCSI
SAF-TE Cluster card switch settings from the touch of the Alarm Reset button.
Refer to “One-Touch Annunciation” on page 95 for more information.
Cooling Fan Status LED
Power Supply Status LED
Channel Status LED
Power On LED
RESET ALARM
Alarm Reset Button
(Press-to-Display Annunciation)
Drive LEDs
Drive Slot 1
Drive Slot 4
Drive Slot 7
Drive Slot 10
Drive Slot 2
Drive Slot 5
Drive Slot 8
Drive Slot 11
Drive Slot 3
Drive Slot 6
Drive Slot 9
Drive Slot 12
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Front Bezel LED and Component Identification
Also, on each disk drive carrier are “LitePipes.” They are located on the lower
right side of each drive carrier. The LitePipes present the some of the information
provided by the front bezel Drive LEDs, that is drive activity information and
drive fault (failure) or data rebuilding notifications when the front bezel is
removed.
Drive LEDs
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Chapter 5 - Monitoring Systems
Fault LED
LitePipes
Activity LED
Drive Carrier LitePipes
Drive Status LEDs
There are twelve Drive Status LEDs. The Drive Status LED is the left LED of each
pair of Drive LEDs. This LED will illuminate steady green when a drive is present
in the slot and powered on. If a drive is not present the LED will be off.
Drive Activity LEDs
There are twelve Drive Activity LEDs. These LEDs will flash on to indicate no
activity or a read operation, while when the LED is off it indicates a write
operation. The Drive Activity LED is the right LED of each pair of Drive LEDs.
Audible Alarm
An audible alarm will sound when any of the enclosure’s component condition
changes to an abnormal state. To silence the alarm, press the Alarm Reset button
located on the front bezel. The corresponding alarms’ LED will remain
illuminated until the condition returns to a normal state.
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Drive Status LEDs
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Chapter 5 - Monitoring Systems
LED Matrix
When the RAID Controllers are installed, they have control of the Drive Status
and Drive Activity LEDs.
Cooling Fan Status LED
Power Supply Status LED
Channel Status LED
Power On LED
RESET ALARM
Alarm Reset Button
(Press-to-Display Annunciation)
Drive LEDs
Drive Slot 1
Drive Slot 4
Drive Slot 7
Drive Slot 10
Drive Slot 2
Drive Slot 5
Drive Slot 8
Drive Slot 11
Drive Slot 3
Drive Slot 6
Drive Slot 9
Drive Slot 12
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Front Bezel LEDs
These LEDs are located on the front bezel. Refer to the table below for a list of the
LED conditions and their meaning:
imageRAID SCSI Series Front Bezel LED Matrix
Condition
Drive Status LED
At power up.
Steady Green
DRIVE READY
Not assigned to an array.
Blinking Green
DRIVE READY
Assigned to an array.
Steady Green
DRIVE ERROR - FAULT
Not assigned to an array.
Blinking Green
DRIVE ERROR - FAULT (Failed)
Assigned to an array.
Fast Blinking Amber
(3 blinks per second)
ARRAY CRITICAL (Remaining good drive LEDs)
Assigned to an array.
Slow Blinking Amber
(1 blink per second)
LED Matrix
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imageRAID SCSI Series Front Bezel LED Matrix
Condition
Drive Status LED
POOL SPARE
Blinking Green
HOT SPARE
Rebuild mode (All Drive Status LEDs)
Steady Amber
HOT SPARE READY
Assigned to an array.
Steady Green
EMPTY DRIVE SLOT
Off
Channel Status LED
94
LED Matrix
Array is Fault-Tolerant
Steady Green
Array is in Rebuild Mode
Steady Amber
Array has a failed drive.
Steady Amber
Controller Failure
Blinking Amber and Green
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Chapter 5 - Monitoring Systems
One-Touch Annunciation
The imageRAID SCSI Series “One-Touch Annunciation” monitoring system is an
easily accessible press-to-touch display of the SAF-TE Disk I/O or SCSI SAF-TE
Cluster card switch settings, enclosure bus mode, type of host interface, serial
communication BAUD rate, and controller status using the Drive Status LEDs and
the Alarm Reset button.
By pressing and holding the Alarm Reset button, the Drive Activity LEDs will all
be extinguished and the Drive Status LEDs will illuminate in unique combinations
to indicate the settings and conditions. Below is an illustration and a table that
describes the Drive Status LEDs and their meanings:
RESET ALARM
Bus Configuration
SAF-TE Card
Switch 1
SAF-TE Card
Switch 2
SAF-TE Card
Switch 3
RAID Addressing
Host Type
Interface
SAF-TE Card
Switch 6
Baud Rate
SAF-TE Card
Switch 7
Delay Start
SAF-TE Card
Switch 8
Remote Start
Not
Applicable
Not
Applicable
Controller 1
Status
Controller 2
Status
Press and Hold
to display settings
Status LED Call-Outs
One-Touch Annunciation Configuration Display
Slot 1
Bus Configuration
LED On = Dual Bus
LED Off = Single Bus
Slot 2
Host Interface Type
LED On = SCSI Host
LED Off = Fibre Host
Slot 3
Not Applicable
Slot 4
SAF-TE Card Switch 1 (A0)
LED On = Up (Enabled)
LED Off = Down (Disabled)
Slot 5
SAF-TE Card Switch 6
Baud Rate
LED On = 19,200 BAUD
LED Off = 9,600 BAUD
Slot 6
Not Applicable
Slot 7
SAF-TE Card Switch 2 (A1)
LED On = Up (Enabled)
LED Off = Down (Disabled)
Slot 8
SAF-TE Card Switch 7
Delay Start
Slot 10
Fan Speed Control
LED On = Enabled (RAID)
LED Off = Disabled (JBOD)
Slot 11
SAF-TE Card Switch 8
Remote Start
LED On = Delay Start Disalbed
LED Off = Delay Start Enabled
LED On = Remote Start Disabled
LED Off = Remote Start Enabled
Slot 9
Lower Controller Present
Slot 12
Upper Controller Present
LED On "Green" = OK
LED On "Amber" = Failed
LED Off = Missing
LED On "Green" = OK
LED On "Amber" = Failed
LED Off = Missing
Status LED Conditions
One-Touch Annunciation
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The following are examples of the One-Touch Annunciation LEDs for switch
settings, controller and bus configurations when the Alarm Reset button is pressed.
IRS-JBOD Single-Bus Configuration Annunciation LED Sample
NOTE:
SAF-TE switches 1 (A0) and 2 (A1) work in combinations to create a
specific range of SCSI IDs.
When you press and hold the Alarm Reset button, and you get the following
conditions, then you will know:
Example of LEDs
SAF-TE Disk I/O Card
Switch Settings
Drive Slot 10
Drive Slot 2
Drive Slot 5
Drive Slot 8
Drive Slot 11
Drive Slot 3
Drive Slot 6
Drive Slot 9
Drive Slot 12
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
DOWN (0)
Drive Slot 7
Activity LEDs
UP (1)
1 2 3 4 5 6 7 8
Drive Slot 4
Status LEDs
A A R S SB DR
0 1 D 0 1D LM
Drive Slot 1
LED ON Condition (Green)
LED OFF Condition
IRS-JBOD Single-Bus Example
Drive Slot Status LED
96
One-Touch Annunciation
LED Condition
Indication
Drive Slot 1
Off
Enclosure in single-bus mode.
Drive Slot 2
On
SCSI Host Interface.
Drive Slot 3
Off
N/A
Drive Slot 4
Off
Switch 1 (A0) is in the DOWN position. This
will set the Drive Slot SCSI IDs to ID 1, 2, 3, 4,
5, 6, 9, 10, 11, 12, 13, and 14. It reserves IDs 0
and 7 for the HBAs, and ID 15 for the SAF-TE
processor.
Drive Slot 5
Off
Indicates that Switch 6 is in the DOWN
position which sets the BAUD rate for the
SAF-TE RS-232 service port to 9,600.
Drive Slot 6
Off
N/A
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Chapter 5 - Monitoring Systems
Drive Slot Status LED
LED Condition
Indication
Drive Slot 7
Off
Switch 2 (A1) is in the DOWN position. This
will set the Drive SCSI IDs of the slots to IDs 1,
2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14. It reserves IDs
0 and 7 for the host bus adapter, and SCSI ID
15 for the SAF-TE processor.
Drive Slot 8
On
Switch 7 is in the UP position which sets the
Delay Start mode to be disabled.
Drive Slot 9
Off
Controller is not installed.
Drive Slot 10
Off
Switch 3 (RD) is in the DOWN position which
disabled RAID addressing and is used when
configuring JBOD mode.
Drive Slot 11
On
Switch 8 is in the UP position which sets the
Remote Start mode to be disabled.
Drive Slot 12
Off
Controller is not installed.
Active-Active/Active-Passive Dual-Bus Configuration Annunciation LED Sample
NOTE:
SAF-TE switches 1 (A0) and 2 (A1) work in combinations to create a
specific range of SCSI IDs.
When you press and hold the Alarm Reset button, and you get the following
conditions, then you will know:
Example of LEDs
Drive Slot 1
Drive Slot 4
Drive Slot 7
Drive Slot 10
Drive Slot 2
Drive Slot 5
Drive Slot 8
Drive Slot 11
Drive Slot 3
Drive Slot 6
Drive Slot 9
Drive Slot 12
SAF-TE Disk I/O Card
Switch Settings
A A R S SB DR
0 1 D 0 1D LM
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
DOWN (0)
Status LEDs
UP (1)
1 2 3 4 5 6 7 8
LED ON Condition (Green)
LED OFF Condition
Active-Active/Active-Passive Dual-Bus Example
One-Touch Annunciation
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Drive Slot Status LED
Drive Slot 1
98
One-Touch Annunciation
LED Condition
Description
On
Enclosure in dual-bus mode.
Drive Slot 2
On
SCSI Host Interface.
Drive Slot 3
Off
N/A
Drive Slot 4
Off
Switch 1 (A0) is in the DOWN position. This
will set the Drive SCSI IDs of the slots to IDs 1,
2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14. It reserves IDs
0 and 7 for the host bus adapter, and SCSI ID
15 for the SAF-TE processor.
Drive Slot 5
Off
Indicates that Switch 6 is in the DOWN
position which sets the BAUD rate for the
SAF-TE RS-232 service port to 9,600.
Drive Slot 6
Off
N/A
Drive Slot 7
Off
Switch 2 (A1) is in the DOWN position. This
will set the Drive SCSI IDs of the slots to IDs 1,
2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14. It reserves IDs
0 and 7 for the host bus adapter, and SCSI ID
15 for the SAF-TE processor.
Drive Slot 8
On
Switch 7 is in the UP position which sets the
Delay Start mode to be disabled.
Drive Slot 9
On
Controller is present.
Drive Slot 10
On
Switch 3 (RD) is in the UP position which
enables RAID addressing and is used when
configuring RAID mode (NexStor 4110S or
NexStor 4120S).
Drive Slot 11
On
Switch 8 is in the UP position which sets the
Remote Start mode to be disabled.
Drive Slot 12
On
Controller is present.
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Chapter 5 - Monitoring Systems
Enclosure SAF-TE Monitoring
Another feature of the imageRAID SCSI Series storage system is the enclosure
monitoring capabilities. The firmware-based monitoring program allows users to
view storage system component status and information about the firmware. You
may access this program by connecting a VT-100 terminal to the SAF-TE Service
port.
To access the monitoring program:
1
Connect one end of the null-modem RS-232 cable to the SAF-TE Service port
located on the rear panel of the enclosure.
CTR
L1
SA
F-T
Controller 1: Service Port
E
CTR
L2
SAF-TE Service Port
Controller 2: Service Port
Connecting the RS-232 Cable
The cable is a female-to-female DB-9 null-modem serial cable.
2
Connect the other end of the cable to either a host system’s serial
communication port or a VT-100 type terminal.
3
On a host system, run a terminal emulation program or start the terminal.
4
Verify the communication parameters are as follows:
•
9600 Baud (optional 19,200)
Baud rate set by Switch 6 – up for 19,200 and down for 9,600 (verify the setting
by pressing the Alarm Reset button and noting the condition of the Drive Status
LED for Drive slot 5.
•
•
•
•
8 Data bits
1 Stop bit
None (parity)
Flow Control Off
Enclosure SAF-TE Monitoring
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Chapter 5 - Monitoring Systems
5
At the screen cursor, type <Control-E>. The Enclosure Terminal Utility menu
will appear.
Enclosure Terminal Utility Screen
6
To monitor the enclosure components, select option “1” Show Enclosure
Environment Status by pressing the <1> key.
The screen provides a status list of the internal components such as disk
drives in a specific slot, temperature of the thermal sensors, cooling fan
status, power supply status, and statistics on enclosure “up time.”
Enclosure Environment Status Screen
NOTE:
7
Press the <Esc> key to return to the Main menu.
NOTE:
100
System degradation will occur if the display is left in the “Show
Enclosure Environment Status” mode. After you have viewed the
information press the <Esc> key to remain idle in the main
Enclosure Terminal Utility screen.
Enclosure SAF-TE Monitoring
Options 2 through 4 are factory and technical support features. Do not
access these features unless instructed to do so by a support technician.
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Chapter 5 - Monitoring Systems
Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware
The following information describes the procedures to upload new firmware to
the SAF-TE Disk I/O or SCSI SAF-TE Cluster card. The firmware can be uploaded
in a “live” environment. There is no need to down the system to perform this
function.
1
Connect one end of the null-modem RS-232 cable to the SAF-TE Service port
located on the rear panel of the enclosure.
CTR
L1
SA
Controller 1: Service Port
F-T
E
CTR
L2
SAF-TE Service Port
Controller 2: Service Port
Connecting the RS-232 Cable
The cable is a female-to-female DB-9 null-modem serial cable.
2
Connect the other end of the cable to either a host system’s serial
communication port or a VT-100 type terminal.
3
On a host system, run a terminal emulation program or start the terminal.
4
Verify the communication parameters are as follows:
•
9600 Baud (optional 19,200)
Baud rate set by Switch 6 – up for 19,200 and down for 9,600 (verify the setting
by pressing the Alarm Reset button and noting the condition of the Drive Status
LED for Drive slot 5.
•
•
•
•
5
8 Data bits
1 Stop bit
None (parity)
Flow Control Off
At the cursor, type <Control-E>.
Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware
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The Enclosure Terminal Utility menu will appear.
Enclosure Terminal Utility Screen
6
Select option “5” Firmware Upload by pressing the <5> key.
Upload Firmware Screen
7
Press the <u> key (lower case) to start the upload. Using the mouse, click on
the pull-down menu Transfers and select “Send.”
Send File Screen
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Chapter 5 - Monitoring Systems
8
Click the browse button and locate the new Firmware file and click “Send.”
The firmware file will have a “.S3R” extension.
NOTE:
Ensure that the protocol “Xmodem” is selected.
From the Xmodem send screen you can monitor the progress of the upload.
You can safely stop the transfer without affecting your existing firmware any
time during the transfer until it has been completed. The upload does not
overwrite the firmware during the upload process, it writes the new code
into unused EEPROM space until completed, then copies the new firmware
code to the EEPROM active region.
If you elect to stop an upload progress, ensure that the stop (abort)
command was completed by typing <Control-X> at the cursor.
Xmodem Transfer Screen
9
After the upload is successful, the Upload Program will then update the
second SAF-TE processor.
Transfer to Second Controller Processor Screen
Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware
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A progress status screen will appear. At 100% the following screen will
appear.
Update Confirmation Screen
After the confirmation is complete, the following screen will appear.
Update Status Screen
10 Verify the new firmware has successfully loaded, type <Control-E>.
11 Press the <Esc> key to return to the Main menu.
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Chapter 5 - Monitoring Systems
Enclosure Fan Speed Control
The SAF-TE Disk I/O or SCSI SAF-TE Cluster card has a firmware-based VT-100
interface which provides an option for fan speed control. This allows the user with
the choice to enable or disable the automatic control feature. It provides for more
efficient management of the cooling fans and a whisper mode fan operation for
noise sensitive environments where it significantly reduces the noise created by the
cooling fans running constantly at full speed. Under normal conditions it is not
necessary to run the cooling fans at full speed.
When this option is enabled, the software will control the RPM of the cooling
fans based on enclosure temperature parameters and its installed components.
For example, if any one or a combination of the following occurs, the cooling fan
RPMs will be set to the maximum software controlled RPM: a disk drive is
removed from any of the drive slots 4 through 9, a power supply is removed, one
of the cooling fans in the cooling fan module fails, a temperature sensor fails, or
a SAF-TE processor fails.
Fan Speed Setup Screen
A manual override of the fan speed control is available for special circumstance
environments. Referring to the illustration on the following page, two jumpers are
provided on the fan module printed circuit board to override the firmware
control of the fan speeds.
Enclosure Fan Speed Control
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Chapter 5 - Monitoring Systems
This hardware setting provides full voltage to the fans for maximum operational
speed, which is greater than the maximum speed set by the automatic software
control. This configuration is normally used when fan speed noises are not an
issue, and the ambient operating temperature is at or above 30°C (86°F), thus
ensuring that maximum available cooling is being provided.
Fan Speed Override Control
Jumpers JP1 (Fan 0)
and JP2 (Fan 1)
Cooling Fan Module
The jumpers JP1 and JP2 are by default are offset which enables the use of the
automatic fan speed control. The jumper JP1 controls Fan 0 and JP2 controls Fan 1.
Placing the included jumper on both pins of each jumper will override the
automatic setting and set the fans to maximum power.
106
Enclosure Fan Speed Control
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Chapter 5 - Monitoring Systems
SAFTE Commands Debug
This feature (Option 2) provides manufacturers and developers the ability to
monitor “read and write” command buffers for both SAF-TE processors. The
interface allows the user to scroll back through the buffer data, or select the
“Transfer>Capture Text” to save the buffer captures to a text file.
SAFTE Commands Debug Screen
NOTE:
Options “2 - SAFTE Commands Debug”, “3 - Environment Testing Menu”,
and “4 - Cycle Test” are made available for manufacturers and OEMs for
development purposes. They are not intended as normal user’s options.
SAFTE Commands Debug
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SAFTE Commands Debug
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Chapter 6
Troubleshooting
This chapter provides typical solutions for problems you may encounter while
using the imageRAID SCSI Series Storage System.
General Enclosure Problems
Symptom
Fails to power on.
Reason
Solution
Power cord(s) not
connected properly.
Verify that the power cord is properly
connected to the power module.
Power not available at the
outlet.
If the enclosure is plugged into a
three-hole grounded outlet, verify that
power to the outlet has not been
interrupted. This can be accomplished
by testing the outlet with a known
working appliance, like a lamp.
Power switch not in the
proper position.
Be sure that the power switch is in the
“On” position, labeled with an “I.”
Faulty power cord.
Replace the power cord.
Faulty power supply.
Identify the failed PSU, see “Replacing
an AC Power Supply” on page 125.
If the enclosure is not responding,
contact your service provider.
Common SCSI Bus Problems
SCSI Bus problems can usually be attributed to cabling issues or a faulty SAF-TE Disk
I/O or SCSI SAF-TE Cluster card. Refer to the chart below and review troubleshooting
and fault isolation procedures to assist you in identifying the suspect component.
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Chapter 6 - Troubleshooting
SCSI Bus Symptom
110
Probable Cause
Solution
Host SCSI BIOS scan
hangs.
Possible termination or
SCSI ID conflict.
Check the Host ID and proper
system configuration.
Not all drives
connected to the
HBA channels are
displayed during
boot.
Possible termination or
SCSI ID conflict.
Check that the SCSI connectors
are properly connected. Check
SCSI ID assignments.
If the enclosure is the
daisy-chained enclosure, check
the I/O card jumper settings in
the last enclosure on the chain.
SCSI Bus hangs, SCSI
Bus excessively
retries, and/or drives
drop offline.
Faulty connectivity.
Re-check the cable connections
to the SAF-TE Disk I/O & SCSI
SAF-TE Cluster card and/or Host
SCSI I/O card.
If you have daisy-chained
storage systems connected on
the SCSI bus, you will need to
perform some fault isolation.
If all the drives on one bus are
offline, start with the daisy-chain
storage system. Disconnect the
data cable. If the remaining
drives return to a normal state it
indicates that the isolated storage
system has the faulty component.
If this does not return the
remaining drives to a normal
state, it is a good indication that
the problem is in the first storage
system and/or its SAF-TE Disk
I/O & SCSI SAF-TE Cluster card.
You may use the SAF-TE Disk
I/O & SCSI SAF-TE Cluster card
from the other storage system or
a “new” known good card.
Substitute this card for the
suspect card and it should return
the storage system bus to a
normal condition.
NOTE: A return to a normal
condition is indicated by the
drives coming back online.
After the faulty card is replaced,
begin re-connecting the data
cables on the SAF-TE Disk I/O &
SCSI SAF-TE Cluster card, noting
the SCSI bus and drives remain
in a normal state.
Re-check the cables to the
SAF-TE Disk I/O & SCSI SAF-TE
Cluster card, Host SCSI I/O card,
and the host adapter.
Common SCSI Bus Problems
Faulty SAF-TE Disk I/O &
SCSI SAF-TE Cluster card
(IRS-JBOD or Daisychained enclosure) or
Host I/O card.
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Chapter 6 - Troubleshooting
SCSI Bus Symptom
Probable Cause
Solution
Host system does not
see the RAID
Controllers.
Possible termination
conflict.
Remove the Host SCSI I/O cards
and install the jumper on both
pins on JP1 and JP2.
SCSI Bus hangs,
(continued).
Faulty SAF-TE Disk I/O &
SCSI SAF-TE Cluster card
(IRS-JBOD or Daisychained enclosure) or
Host I/O card (continued).
Replace the SAF-TE Disk I/O &
SCSI SAF-TE Cluster card or Host
SCSI I/O card.
If the problem still exists in a
RAID configuration, with the
primary enclosure isolated to the
host system, follow the
procedures above to test the
connectivity and operation of the
Host SCSI I/O card. There are
two Host SCSI I/O cards installed
in RAID configurations, and you
can move the cable to the
second card, same channel
connector to fault isolate the
Host SCSI I/O card.
Common SCSI Bus Problems
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Chapter 6 - Troubleshooting
Terminal Emulator and COM Port Problems
Symptom
Screen continuously
puts out garbage
characters.
Reason
Solution
The likely cause of this
problem is a baud rate
mismatch between the
terminal emulator and the
controller. The default baud
rate is 115,200. Follow these
steps if you set your terminal
emulator to this rate and still
get garbage characters:
1 If you are able, shut down the
controller.
See “Rebooting the Controller” in
the VT-100 or AdminiStor
software guides. If you are
unable to shut down the
controller, continue with step 2.
2 Turn off the power to the
enclosure containing the
controller.
3 Press the spacebar of your
terminal emulator.
4 Turn on the power while
continuing to press the spacebar.
This will allow the controller to
auto-detect the baud rate setting.
5 When the Flash Utility appears,
select option 5 to continue to
boot the controller.
Note: Some terminal emulators
do not immediately change to the
new baud rate settings, and you
have to exit and restart the
emulator to use the new settings.
Nothing is displayed
on the terminal
emulator screen.
Screen is updated, but
will not respond to
keystrokes.
112
Terminal Emulator and COM Port Problems
The probable cause of this
problem is a bad RS-232
cable connection or
swapped transmit/receive
lines.
If the cable is properly connected on
both ends, try another null modem
cable.
Improper setting.
Disable hardware flow control on the
terminal or terminal emulator. The
controller supports XON/XOFF flow
control and works properly in most
cases with no flow control.
Ensure that you are not using a
straight through RS-232 cable.
imageRAID_160.book Page 113 Friday, November 14, 2003 4:14 PM
Chapter 6 - Troubleshooting
Host SCSI Channel Problems
Symptom
Solution
The host SCSI BIOS scan
displays “Device name not
available.”
The controller is properly installed, but no arrays have been
created. Use AdminiStor or VT-100 Disk Array Administrator
to create an array and reboot the host system.
The host SCSI BIOS scan hangs.
Check that termination is set correctly in the Configuration
Menu and the drive enclosure. Check that the device ID set
in the software does not conflict with any other devices on
the host SCSI channel. If you have a long SCSI cable, try a
different or shorter cable.
Only one array is displayed
during host SCSI BIOS scan.
Check to ensure that LUN support is enabled. Most SCSI host
adapters ship with LUN support disabled by default. Use
Display Array Status to check the LUN assignment for each
array. If LUN 0 is not assigned to an array, or some other
LUN numbers are skipped, use the Change LUN Assignment
option for each array until you have LUN numbers starting at
0 with no LUNs skipped. You must reboot the host system to
recognize the new LUN assignment.
All arrays are displayed during
host SCSI BIOS scan, but only
one array is seen by the
operating system.
SCSI drivers for some operating systems require a
parameter switch to enable LUN support. Check the driver
documentation for your host SCSI channel. You may also
need to compact the LUN mapping.
Device SCSI Channel Problems
Problem
Solution
Not all drives connected to the
controller device channels are
displayed during boot, or the
controller hangs during display
of connected drives.
Refer to chapter 3 to be sure that the enclosure is properly
configured for use with a imageRAID controller. Check
termination and ID assignment. If you have enabled
Ultra/Ultra2 SCSI on any device channels, try disabling it.
Host SCSI Channel Problems
113
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Chapter 6 - Troubleshooting
Problems During Bootup
The following sections describe problems you might encounter during Power On
Self-Test (POST) or during bootup sequence of the enclosure and explains how
to resolve those problems. POST shows problems related to the processor, logic,
and memory.
Symptom
Solution
Controller failed the onboard
memory test.
When this failure occurs, it means the internal CPU memory
failed. Replace the controller to correct the problem.
System hangs at Loading Bridge
during BFLU Loader Menu.
Re-flash the firmware to ensure you are using the latest
version. See “Upgrading Firmware” in the VT-100 or
AdminiStor software guides. If you cannot update the
firmware or if the updated firmware does not correct the
problem, replace the controller. Dual imageRAID controllers
require the same version of firmware on both controllers.
One of the POST diagnostic
tests failed.
Contact service provider.
The system hangs at CT_srv
starting.
Follow these steps to resolve the problem:
1 Verify that there are no SCSI address conflicts.
2 Check the enclosure(s) to make sure everything is
properly connected.
3 If the enclosure(s) and the drive work properly,
replace the controller.
The system hangs during a drive
scan.
Follow these steps to resolve the problem:
1 Check the enclosure(s) to make sure everything is
properly connected.
2 Remove and replace the drive that failed the scan.
3 If the enclosure(s) and the drive work properly,
replace the controller.
114
Problems During Bootup
An Active-Active controller pair
hangs during boot up drive scan
(typically after displaying
CT_Init on the RS-232 display).
Verify that all SCSI channels are connected, cabled, and
terminated properly. Verify that the controllers are set to
their default configuration (Active-Active:Single Port mode).
An Active-Active controller pair
hangs the host system during
normal operation or after failing
over.
Verify that all SCSI channels are connected, cabled, and
terminated properly.
An Active-Active controller pair
always fails over after booting
up.
Verify that the controller that is failed/killed is set to its
default configuration (Active-Active:Single Port mode).
Verify the same SDRAM DIMM sizes are in both controllers.
Active-Active controllers require the same SDRAM DIMM
size.
imageRAID_160.book Page 115 Friday, November 14, 2003 4:14 PM
Chapter 6 - Troubleshooting
Controller Problems
Problem
Solution
The controller’s STATUS LED is
on, but there is no RS-232
display.
Check that the RS-232 cable is the correct type
(null-modem). Check that the terminal emulation utility on
the computer system is properly configured.
The controller reports a SDRAM
memory error.
Check that the SDRAM DIMM is fully seated in the
connector and the latches are fully engaged into the DIMM
notches.
The controller reports a Battery
error.
Verify that the correct NiMH battery pack is installed.
Common Problems and Interpreting the LEDs
Symptom
Power Supply Status
LED is illuminated.
Reason
Solution
Power supply has failed.
Replace the suspect faulty power
supply.
Power supply turned off.
Ensure that all the power supply
switches are in their “On” position.
Power supply missing.
Replace the missing power supply
and turn it on.
Loss of AC power to the
power supply.
Verify that proper AC power is
available to the power supplies. If the
enclosure is plugged into a three-hole
grounded outlet, verify that power to
the outlet has not been interrupted.
This can be accomplished by testing
the outlet with a known working
appliance, like a lamp.
Fan Status LED is
illuminated.
Failed cooling fan.
Replace cooling fan module.
Drive Status LED is
not illuminated and a
drive is present in the
slot.
Fault on the SAF-TE Disk
I/O & SCSI SAF-TE Cluster
card.
Replace a faulty SAF-TE Disk I/O &
SCSI SAF-TE Cluster card.
Faulty disk drive.
Replace the faulty disk drive.
Faulty SAF-TE Disk I/O &
SCSI SAF-TE Cluster card.
Replace the faulty SAF-TE Disk I/O &
SCSI SAF-TE Cluster card.
Replace the faulty Host SCSI I/O card.
Faulty Host SCSI I/O card.
Controller Problems
115
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Chapter 6 - Troubleshooting
Warning and Error Events
There are a number of conditions that trigger warning or error events, activate
the alarm, and may affect the state of the STATUS and FAULT LEDs. The alarm
sounds mainly when the VT-100 or AdminiStor software displays a warning or
error event.
The alarm will silence when you acknowledged the event by pressing the alarm
reset button. The events in these categories are listed below.
Warnings
Warning events let you know that something related to the controller or an array
has a problem. You should correct the problem as soon as possible. The table
below defines each warning event and recommends the action you should take.
Occasionally, references are made in the “software guides,” of which there are
two manuals. They are the AdminiStor Software Guide and the VT-100 Software
Guide.
Event
116
Warning and Error Events
Definition
Recommended Action
BATT FAIL INFO
A warning condition in the
battery pack and/or charging
interface has been detected.
Replace the controller. Refer to
“Replacing a Controller” in the
VT-100,or AdminiStor software
guides.
REPLACE BATTERY
The battery is approaching its
3-year life span.
Replace the controller. Refer to
“Replacing a Controller” in the
VT-100 or AdminiStor software
guides.
ARRAY CRITICAL
One or more drives were
downed and the array is online,
but is no longer fault tolerant.
Add a spare to the array or the
spare pool. Then replace the bad
drives. See “Adding a Dedicated
Spare” or “Adding a Spare to the
Spare Pool” in the VT-100 or
AdminiStor software guides.
DRIVE DOWN
An error occurred with the drive
and it was downed, removing it
from the active array.
Add a spare to the array or the
spare pool. Then replace the bad
drive. See “Adding a Dedicated
Spare” or “Adding a Spare to the
Spare Pool” in the VT-100,or
AdminiStor software guides.
SPARE UNUSABLE
The drive still contains metadata
that must be cleared.
Clear the metadata from the spare
drive. See “Clearing Metadata from
a Drive” in the VT-100 or
AdminiStor software guides.
imageRAID_160.book Page 117 Friday, November 14, 2003 4:14 PM
Chapter 6 - Troubleshooting
Event
Definition
Recommended Action
SMART EVENT
A disk drive informational
exceptions page control (IEPC)
predictive failure message was
received. No actions by the
controller are taken on the drive
for these events.
Run diagnostics available from
your operating system on the
affected drive. Replace the drive, if
necessary.
ARRAY OFFLINE
More than one drive in a RAID 0
or volume set went down
bringing the array to an offline
state. This array is no longer
accessible by the host.
Replace the bad drive and restore
the data from backup.
VOLT/TEMP WARN
The analog-to-digital converter
monitored a temperature and/or
voltage in the warning range.
Check that the controller’s fan is
running. Check that the ambient
temperature is not too warm. See
“Technical Information” on
page 141.
UNWRITABLE
CACHE
The SDRAM cache has battery
backed-up data, and the arrays
assigned to this data are not
present.
Either determine which drives are
missing and reinstall them, or
select Yes when asked if you want
to discard this data.
SDRAM CORR ECC
A correctable single-bit SDRAM
ECC error occurred.
If this error occurs frequently,
replace the memory.
Errors
Error events let you know that something related the enclosure, controller, or
disk drives has failed and requires immediate attention. The table below defines
each error event and recommends the action you should take.
Event
Definition
Recommended Action
VOLT/TEMP
FAIL
The analog-to-digital convertor
monitored a temperature and/or
voltage in the failure range.
Check that the enclosure fans are
running. Check that the ambient
temperature is not too warm. See
“Technical Information” on page 141.
ENCLOSURE
FAIL
Enclosure specific general
purpose I/O triggered a failure
condition.
Check the status of the enclosure.
BATTERY
FAILED
A failure in the battery pack
and/or charging interface has
been detected.
Replace the controller.
DISK CHAN
FAILED
An error has occurred in
communicating on the disk
channel.
Check the cables on the channel.
Errors
117
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Chapter 6 - Troubleshooting
Event
Definition
SDRAM
UNCORR ECC
A noncorrectable multiple-bit
SDRAM ECC error occurred.
Recommended Action
Reseat the memory. If the problem
continues, replace the memory.
Disk Errors
If a disk detects an error, it reports the error, which is recorded in the event log.
The following is an example of a disk-detected error.
Disk Channel
SCSI ID
Sense Code Qualifier
Sense Code
Sense Key
Disk-Detected Error Example
Using the information in the Sense Key and ASC tables, you can see that this is a
medium error, unrecovered read error – recommended reassignment.
Sense Key Descriptions
Sense Key
118
Disk Errors
Description
0h
No sense
1h
Recovered error
2h
Not ready
3h
Medium error
4h
Hardware error
5h
Illegal request
6h
Unit attention
7h
Data protect
8h
Blank check
9h
Vendor-specific
Ah
Copy aborted
Bh
Aborted command
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Chapter 6 - Troubleshooting
Sense Key Descriptions
Sense Key
Description
Bh
Aborted command
Ch
Obsolete
Dh
Volumes overflow
Eh
Miscompare
Fh
Reserved
ASC and ASCQ Descriptions
ASC
ASCQ
Description
0C
02
Write error - auto-reallocation failed.
0C
03
Write error - recommend reassignment.
11
00
Unrecovered read error.
11
01
Read retries exhausted.
11
02
Error too long to correct.
11
03
Multiple read errors.
11
04
Unrecovered read error - auto-reallocation failed.
11
0B
Unrecovered read error - recommend
reassignment.
11
0C
Unrecovered rear error - recommend rewrite
data.
47
00
SCSI parity error.
48
00
Initiator-detected error message received.
Disk Channel Errors
Disk channel errors are similar to disk-detected errors, except they are detected
by the controller, instead of the disk drive. Some disk channel errors are
displayed as text strings, others are displayed as hexadecimal values.
The illustration on the following page shows a disk channel error displaying the
hexadecimal codes. Most disk channel errors are informational because the
controller issues retries to correct any problem. Errors that cannot be corrected
with retries will result in another critical event describing the affected disk array
(if any).
Disk Channel Errors
119
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Chapter 6 - Troubleshooting
Disk Channel
SCSI ID
Error Code
Disk-Detected Error Example
Disk Channel Error Codes
Error Code
04
120
Disk Channel Errors
Description
Data overrun or underrun occurred while getting sense data.
05
Request for sense data failed.
20
Selection time-out occurred (displayed as Sel Timeout).
21
Controller detected an unrecoverable protocol error on the part
of the target.
22
Unexpected bus-free condition occurred (displayed as Unex
Bsfree).
23
Parity error on data was received from a target displayed as
Parity Err).
24
Data overrun or underrun has been detected (displayed as
Data OvUnRn).
30
Target reported busy status (displayed as Device Busy).
31
Target reported queue full status (displayed as Queue Full).
32
Target has been reserved by another initiator.
40
Controller aborted an I/O request to this target because it
timed out (displayed as I/O Timeout).
41
I/O request was aborted because of a channel reset.
42
I/O request was aborted because of controller’s decision to
reset the channel.
43
I/O request was aborted because of third-party channel reset
(displayed as Abort 3PRST).
44
Controller decided to abort I/O request for reasons other than
bus or target reset.
45
I/O request was aborted because of target reset requested by
controller.
46
Target did not get response properly to abort sequence.
4B
I/O aborted due to operating mode change (such as LVD to SE
or SE to LVD) (displayed as Abort MdChg).
50
Disk channel hardware failure (displayed as DskChn Fail). This
may be the result of bad termination or cabling.
imageRAID_160.book Page 121 Friday, November 14, 2003 4:14 PM
Chapter 7
Maintenance
In this chapter you will find the maintenance procedures to replace individual
components, as well as the entire storage system enclosure.
Removing the Front Bezel
1
Using a Phillips screwdriver, unlock the two front bezel fasteners.
Re
set
Ala
rm
Unlocking the Front Bezel
Rotate the fasteners counterclockwise one-quarter turn to unlock.
121
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Chapter 7 - Maintenance
2
Grasp and pull the front bezel from the enclosure. Refer to the illustration
below.
Res
et A
larm
Removing the Front Bezel
122
Removing the Front Bezel
imageRAID_160.book Page 123 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing the Cooling Fans
NOTE:
The cooling fan module is hot swappable.
WARNING:
1
Do not operate the enclosure for extended periods of time, greater
than five (5) minutes, with the cooling fan module removed. No
cooling is available while the fan module is removed.
The cooling fan module is located at the rear of the enclosure. Place your
fingers in the fan module handle and press with your thumb to release the
latch while pulling the module from the enclosure.
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pull cooling fan module
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Removing the Cooling Fan Module
Replacing the Cooling Fans
123
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Chapter 7 - Maintenance
2
Remove the replacement cooling fan module from the shipping container
and inspect for obvious damage. Save the packaging material.
3
Verify that the jumper settings are the same as the cooling fan module being
replaced.
4
Align the cooling fan module with the open fan bay and push the module
into the enclosure until it completely seats.
The latch will reset when the module is completely seated.
The front bezel Fan Status LED will return to a normal state (green).
5
124
Replacing the Cooling Fans
Using the packaging material from the replacement cooling fan module,
re-package and return the failed cooling fan module per your RMA
instructions.
imageRAID_160.book Page 125 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing an AC Power Supply
1
Turn the On/Off switch to the “Off” position on the power supply.
If the dual power supply option is installed, the working power supply will
continue to supply sufficient power to keep the system operational while
you replace the failed power supply.
2
Disconnect the AC power cord. Release the power cord bale and pull the
cord from the AC power cord module on the power supply.
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Releasing the Power Supply
Replacing an AC Power Supply
125
imageRAID_160.book Page 126 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
3
Using your thumb and fore finger, squeeze the power supply release latch
while pulling the power supply from the enclosure.
4
Remove the replacement power supply from the shipping container and
inspect for obvious damage. Save the packaging material.
5
Install the new power supply by sliding it into its open bay and ensuring it
seats completely and the release latch resets.
6
Re-connect the power cord.
Insert the power cord into the AC power cord module and secure it with the
power cord bale.
7
Turn the On/Off switch to the “On” position on the replacement power
supply.
NOTE:
8
126
The front bezel Power Supply Status LED will return to a normal
state (steady green).
Using the packaging material from the replacement power supply, repackage
and return the failed power supply per your RMA instructions.
Replacing an AC Power Supply
imageRAID_160.book Page 127 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing a DC Power Supply
1
Turn the On/Off switch to the “Off” position on the affected power supply.
If the dual power supply option is installed, the working power supply will
continue to supply sufficient power to keep the system operational while
you replace the failed power supply.
2
Disconnect the DC power cable. Squeeze the connector latches and pull the
power cable from the DC power cable module on the power supply.
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RM LE
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6
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JP5
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l3
P2
A
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1 TO DD JU
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Cha
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Cha
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CCon
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CCoonn
trtroollll
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Releasing the Power Supply
Replacing a DC Power Supply
127
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Chapter 7 - Maintenance
3
Using your thumb and fore finger, squeeze the power supply release latch
while pulling the power supply from the enclosure.
4
Remove the replacement power supply from the shipping container and
inspect for obvious damage. Save the packaging material.
5
Install the new power supply by sliding it into its open bay and ensuring it
seats completely and the release latch resets.
6
Re-connect the DC power cable. Insert the power cable connector into the
DC power cable module. It secures when the connector’s latches reset.
7
Turn the On/Off switch to the “On” position on the replacement power
supply.
NOTE:
8
128
The front bezel Power Supply Status LED will return to a normal
state (steady green).
Using the packaging material from the replacement power supply, repackage
and return the failed power supply per your RMA instructions.
Replacing a DC Power Supply
imageRAID_160.book Page 129 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing a Disk Drive
WARNING:
NOTE:
To prevent operating failure or damage, observe the following:
Establish a ground for yourself by using the wrist grounding strap, or
by touching the metal chassis prior to handling or installing the
drives.
There is no need to power Off the enclosure or the host computer
system. The drives are hot-swappable. Be careful of the “P-factor” effect
when removing a disk drive, which is the twisting of the drive in your
hand as a result of the spinning disk. Allow the drive to completely spin
down before removing it. Do this by pulling the drive slightly from its
locked position and allowing it to spin down, then remove the drive.
1
Identify the failed disk drive using the Drive Status LED. Refer to
“Troubleshooting” on page 109 and “Drive LEDs” on page 91.
2
Remove the front bezel.
3
Grasp the drive carrier handle and pull the disk drive from the enclosure.
Drive Carrier
Lock
Disk
Drive
Carrier
Tension Clips
Status and
Activity LED
LitePipe
Removing/Installing the Disk Drive
Replacing a Disk Drive
129
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Chapter 7 - Maintenance
The drive carrier has tension clips which ensures that the drive fits very tight.
It requires some force to remove or install the drive.
4
Remove the replacement disk drive from its shipping container and remove
the anti-static protection packaging.
Inspect the drive for obvious damage. Save the packaging material.
5
Install the replacement disk drive.
a
Align the drive carrier with the rail grooves in the drive bay.
b
Ensure that the drive seats completely. The drive carrier tension clips
ensure that the disk drive fits very tight, so it requires some force to push
the drive into its bay.
Installing the Disk Drive
130
6
Re-install and secure the front bezel. Using a Phillips screwdriver, rotate the
fasteners clockwise one-quarter turn to lock.
7
Using the packaging materials from the replacement disk drive, repackage
the failed drive and return it per your RMA instructions.
Replacing a Disk Drive
imageRAID_160.book Page 131 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card
WARNING:
The SAF-TE Disk I/O or SCSI SAF-TE Cluster card is NOT HOT
SWAPPABLE. You must POWER DOWN the storage system to
replace this card.
Power down the storage enclosure, refer to “Powering Off the Storage
System” on page 80.
2
Locate the faulty SAF-TE Disk I/O or SCSI SAF-TE Cluster card.
3
Disconnect the SCSI data cables attached to the faulty card.
4
Loosen the two thumb screws that secure the card.
Co
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mo e S ct
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rive rt
Sta
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1
Channel 1
Termination Jumper
1
FG 2
CN FG ID
CN RA 1
E 2
AR E
SP PAR EL
S D S RT
U ST T
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RM
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JP8
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1 2 3 4 5 6 7 8
7
DOWN
AD
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Ch
el 1
L -2
NE
AN
CH
ann
Ch
ann
el 2
Channel 2
Termination Jumper
SAF-TE Disk I/O Card or SCSI SAF-TE Clustering Card
5
Using the handle, gently pull the card from the enclosure.
6
Note the position of the jumpers and the switch settings on the faulty card.
7
Remove the new replacement SAF-TE Disk I/O or SCSI SAF-TE Cluster card
from the shipping container and inspect for obvious damage. Save the
packaging materials.
8
Set the jumpers and switches to match the faulty card being replaced.
9
Insert the replacement card by aligning it into the rail guides and pushing the
card until it fully seats.
Tighten the two thumb screws. Do not overtighten the screws.
Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card
131
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Chapter 7 - Maintenance
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CCon
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CCoonn
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Re-installing the SAF-TE Disk I/O Card or SCSI SAF-TE Clustering Card
10 Re-connect the SCSI data cables to the replacement SAF-TE Disk I/O or SCSI
SAF-TE Cluster card.
11 Power-on the enclosure. Refer to “Powering On the Storage System” on
page 80.
12 Using the packaging materials from the replacement card, repackage the
failed card and return it per your RMA instructions.
132
Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card
imageRAID_160.book Page 133 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing the Host SCSI I/O Card
WARNING:
The Host SCSI I/O card is NOT HOT SWAPPABLE. You must POWER
DOWN the storage system to replace this card.
1
Power down the storage enclosure, refer to “Powering Off the Storage
System” on page 80.
2
Locate the faulty Host SCSI I/O card. Refer to “Troubleshooting” on page 109
for information on identifying the suspect card.
3
Disconnect the SCSI data cables attached to the faulty Host SCSI I/O card.
4
Loosen the two thumb screws that secure the card.
AD
D
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RM BL
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1
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JP
JP
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4
AD
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RM PL
PO Y
WE
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Cha
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l0
Termination Jumpers
for Host Channels 0 and 3
I/O
Cha
nne
l3
Host SCSI I/O Card
5
Using the handle, gently pull the Host SCSI I/O card from the enclosure.
6
Note the position of the jumpers on the faulty card.
7
Remove the new replacement Host SCSI I/O card from the shipping
container and inspect for obvious damage. Save the packaging materials.
8
Set the jumpers to match that of the faulty card being replaced.
9
Insert the replacement card by aligning it into the rail guides and pushing the
card until it fully seats.
Tighten the two thumb screws. Do not overtighten the screws.
Replacing the Host SCSI I/O Card
133
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Chapter 7 - Maintenance
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2
1
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3
CH
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Re-installing the Host SCSI I/O Card
10 Re-connect the SCSI data cables to the replacement Host SCSI I/O card.
11 Power-on the enclosure. Refer to “Powering On the Storage System” on
page 80.
12 Using the packaging materials from the replacement card, repackage the
failed card and return it per your RMA instructions.
134
Replacing the Host SCSI I/O Card
imageRAID_160.book Page 135 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing a imageRAID Controller
NOTE:
1
The imageRAID Controller is hot swappable.
Identify and locate the failed imageRAID Controller. Refer to
“Troubleshooting” on page 109.
imageRAID Controller 1 is the lower controller and imageRAID Controller 2 is
the upper controller.
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Con
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0
troll
Controller
Cover Plate
er 2
Con
troll
Optional Dual
SCSI-to-SCSI
imageRAID Controllers
er 1
Component Location
2
Remove the Controller Cover plate. Loosen the four thumb screws and pull
the plate from the enclosure.
3
Remove the faulty imageRAID Controller.
Pull out on the two latches that secure the controller. Using the latches as
handles, carefully pull the controller from the enclosure.
4
Install the new replacement imageRAID Controller into the enclosure. Secure
the controller by pressing the latches until the lock into place.
Replacing a imageRAID Controller
135
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Chapter 7 - Maintenance
5
Access the AdminiStor software or the Disk Array Administrator software
using the VT-100 terminal; verify the replacement imageRAID Controller has
the correct firmware.
NOTE:
Active-Active and Active-Passive dual imageRAID Controller require
the same version firmware on both controllers.
6
(Active-Active Mode) Access the AdminiStor software or the Disk Array
Administrator software using the VT-100 terminal; relinquish the partner
controller.
7
Using the packaging materials from the replacement controller, repackage the
failed controller and return it per your RMA instructions.
Replacing a “Killed” Controller When in Active-Active/Active-Passive Mode
If one controller detects that the other has a problem, it will kill it. The system
will log an event. If it is determined that the controller has a permanent failure,
then it must be replaced. Simply replace the defective controller and ensure that
the firmware on it is at the same level as the surviving controller. If required,
upload the correct firmware.
The new controller will complete its boot cycle and go to an online status.
136
Replacing a “Killed” Controller When in Active-Active/Active-Passive Mode
imageRAID_160.book Page 137 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
Replacing the Enclosure
WARNING:
Printed circuit board components are sensitive to electrostatic
discharge. To prevent operating failure or damage, observe the
following: Establish a ground for yourself by using a wrist grounding
strap, or by touching the metal chassis prior to handling or installing
a printed circuit board component.
1
Remove your replacement enclosure from the shipping container and inspect
the shipment. Save the packaging material.
2
Power down the host computer and the storage enclosure(s).
Refer to the procedures described to power down the host computer system
in your user’s guide and “Powering Off the Storage System” on page 80 for
the enclosure.
NOTE:
Mark or make a notation of the location of the data cables prior to
disconnecting or removing these items. To facilitate correct
installation, you may want to tag the cables appropriately.
3
Disconnect the SCSI data cables and power cords from the faulty storage
enclosure.
4
Remove the front bezel. Refer to “Removing the Front Bezel” on page 121 for
procedures to properly remove the bezel.
5
Remove each power supply. Refer to “Replacing an AC Power Supply” on
page 125 or “Replacing a DC Power Supply” on page 127.
6
Remove the cooling fan module.
7
If applicable, remove each imageRAID Controller, noting its position. Again,
you may wish to tag the controllers for proper installation. Refer to
“Replacing a imageRAID Controller” on page 135.
8
Remove the SAF-TE Disk I/O or SCSI SAF-TE Cluster card and if applicable
remove the Host SCSI I/O cards.
Note the position of the jumper settings and switch settings.
Replacing the Enclosure
137
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Chapter 7 - Maintenance
9
Remove the defective storage enclosure.
a
For Rack Installations. Reverse the installation procedures in Chapter 3,
“Installing the Storage System Enclosure into the Rack Cabinet” on
page 36.
OR
b
For Deskside Tower Installations. Reverse the installation procedures in
Chapter 3, “Installing the Storage System into the Tower Stand” on
page 39.
10 Install the replacement storage enclosure.
a
For Rack Installations. Follow the installation procedures in Chapter 3,
“Installing the Storage System Enclosure into the Rack Cabinet” on
page 36.
OR
b
For Deskside Tower Installations. Follow the installation procedures in
Chapter 3, “Installing the Storage System into the Tower Stand” on
page 39.
11 Re-install the SAF-TE Disk I/O or SCSI SAF-TE Cluster card and if applicable
the Host SCSI I/O cards.
Set the jumper settings and switch setting to match those on the cards being
replaced.
12 Re-install the power supplies. Refer to “Replacing an AC Power Supply” on
page 125 or “Replacing a DC Power Supply” on page 127.
13 Re-install the cooling fan module.
14 If applicable, re-install the imageRAID Controllers in their proper slot
position (Controller 1 lower slot and Controller 2 upper slot). Refer to
“Replacing a imageRAID Controller” on page 135.
WARNING:
138
Replacing the Enclosure
Carefully seat the controller’s connector. The connector is
sensitive to alignment due to the number of pins in the
connector. Secure the controller by latching the latches.
imageRAID_160.book Page 139 Friday, November 14, 2003 4:14 PM
Chapter 7 - Maintenance
15 Reconnect the SCSI data cables and power cords. Refer to the notations made
prior to removing the cables for their proper connection location.
16 Power on the storage enclosure(s) and then the host computer(s). Refer to
“Powering Off the Storage System” on page 80.
17 Verify that all systems are operating normally.
18 Access the AdminiStor software or the Disk Array Administrator software
using a VT-100 terminal; verify the replacement imageRAID Controller has
the correct firmware.
NOTE:
Active-Active and Active-Passive dual imageRAID Controllers require
the same version firmware on both controllers.
19 Using the packaging materials from the replacement storage enclosure,
repackage and return the defective enclosure per your RMA instructions.
Replacing the Enclosure
139
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Chapter 7 - Maintenance
140
Replacing the Enclosure
imageRAID_160.book Page 141 Friday, November 14, 2003 4:14 PM
Appendix A
Technical Information
Specifications
Technical Specifications for the imageRAID SCSI Series Storage System
Operating Environment
Operating
Non-Operating
+40°F to +95°F (+5°C to +35°C)
-4°F to +158°F (-20°C to +70°C)
Relative Humidity
Operating/Non-Operating
5% - 95% (non-condensing)
Power Requirements
100 - 240 VAC (auto-sensing)
3.0 Amperes (maximum)
50-60 Hz
2 x 350 Watts
Dimensions (HxWxD)
3.47" x 17.65" x 20.25"
Weight (w/2 power supplies)
38.55 lbs w/o drives
58.00 lbs with twelve drives
Altitude
-200 to 10,000 feet
Number of Drives Supported
12 per enclosure
Total Capacity
876 gigabytes (73 GB Drives)
Host Interface
Ultra320/160 SCSI
Drive Interface
SCA-80 Ultra320/160 SCSI
I/O Interface
RS-232 (Power Supply, Temperature, and
Fan monitoring)
Electromagnetic Emissions Requirements (EMI)
FCC, Part 15, Class A
CISPR 22 EN55022-A
VCCI, BSMI, C-TICK
141
imageRAID_160.book Page 142 Friday, November 14, 2003 4:14 PM
Appendix A - Technical Information
Technical Specifications for the imageRAID SCSI Series Storage System
Safety Requirements
(in compliance with)
CAN/CSA C22.2 #60950-00
UL 60950 3rd Edition
CB IEC 60950 Edition 3
CE Compliance (EMC)
89/336/EEC EMC Directive
Shock
Operating
Non-Operating
1.0 G, 2 - 50 ms
20.0 G, 2 - 20ms
Vibration
Operating
Non-Operating
5 - 500 Hz, 0.25 G (pk to pk)
5 - 500 Hz, 1.0 G (pk to pk)
SCSI imageRAID Controller (JSS122)
142
Specifications
Onboard CPU
Mobile Pentium II 333 MHz, 256-KB on-chip L2 cache
Host/device data rate
160-MB/sec Ultra160 SCSI
Host interface channels
Two 160-MB/sec Ultra160 SCSI Channel (1x3 or 2x2), the
default is two channels
Device interface channels
Two or three 160-MB/sec Ultra160 SCSI device channels;
the default is two channels
SCSI protocol
Narrow (8-bit) or Wide (16-bit): Fast (20MB/sec), Ultra
(40MB/sec), Ultra2 (80MB/sec), Ultra160 (160MB/sec)
Advanced RAID features
Active-active, host-independent failover/failback in the
2x2 configuration
Write-back data cache memory bus, 800 MB/sec
bandwidth
On-line capacity expansion
Up to 24 independent logical arrays per subsystem
Spare pooling and dedicated spares; array verification
Controller/drive hot swap supported
Array status monitoring; adjustable stripe width;
automatic sector remapping
User-settable priority for array Reconstruct, Verify, Create,
and Expand operations
RAID levels 0, 1, 3, 4, 5, 10, 50
Advanced hardware features
64 MB to 512 MB, PC-133 compatible SDRAM DIMM,
ECC protected
16 MB ECC protected onboard SDRAM processor
memory
2 MB onboard Flash memory for upgradable firmware
Integrated Nickel Metal Hydride (NiMH) cache battery
backup interface
imageRAID_160.book Page 143 Friday, November 14, 2003 4:14 PM
Appendix A - Technical Information
SCSI imageRAID Controller (JSS122)
Advanced SCSI features
Full backward SCSI compatibility
70 simultaneous commands and Command Queuing
supported
Reserve/Release (multihost ready, up to 15 initiators with
single controller)
Ultra160 SCSI for data transfer up to 160 MB/sec
Ultra160 SCSI connection for up to 15 devices per
channel (14 in active-active mode)
Domain validation and CRC data protection with Ultra160
Configuration and management
AdminiStor or RS-232 serial interface to ANSI terminal or
terminal emulator
Performance statistics monitoring; event logging, rebuild,
and verify utilities
SAF-TE and SMART environmental monitoring support
AdminiStor support
Board form factor
4.25 in x 9.0 in PCB outline (10.80 cm x 22.86 cm)
1.1 in (2.79 cm) total height with unbuffered DIMM,
1.2 in (3.05cm) with registered DIMM
Backplane connector
376 I/O pin AMP Z-Pack HM series
Power requirements
+5.0Vdc, 6.0A typical, 8.0A max, ±5% input tolerance
+12.0Vdc, 0.2A max (normal operation), 0.6A max
(battery charging), ±10% input tolerance
Battery backup
3-cell NiMH Battery Pack, with integrated thermistor and
overcurrent fuse.
Temperature
Normal
Degraded
Non-Operating
+5oC to +45oC
0oC to +5oC and +45oC to +50oC
-40oC to +100oC
Humidity
Operating
Non-Operating
10% to 85% noncondensing
5% to 90% noncondensing
Air flow
10.0 cubic-ft/min. (CFM)
Specifications
143
imageRAID_160.book Page 144 Friday, November 14, 2003 4:14 PM
Appendix A - Technical Information
144
Specifications
imageRAID_160.book Page 145 Friday, November 14, 2003 4:14 PM
Appendix B
Port Information
This appendix contains pin signal information about the connectors on the SAF-TE
Disk I/O card, SCSI SAF-TE Cluster card, and Host SCSI I/O card, and RS-232
Service ports.
VHD/CI SCSI Connectors
On each SAF-TE Disk I/O, SCSI SAF-TE Cluster card, and Host SCSI I/O card are
two VHD/CI SCSI port connectors. These connectors provide the input/output
interface from the storage enclosure bus to the host system.
1
34
35
68
VHD/CI Connector
VHD/CI Connector Pin Signals
Connector P1
Connector P2
Signal Name
+DB(12)
+DB(13)
+DB(14)
+DB(15)
+DB(P1)
Pin Number
1
2
3
4
5
Signal Name
+DB(12)
+DB(13)
+DB(14)
+DB(15)
+DB(P1)
Pin Number
1
2
3
4
5
145
imageRAID_160.book Page 146 Friday, November 14, 2003 4:14 PM
Appendix B - Port Information
VHD/CI Connector Pin Signals
Connector P1
Signal Name
+DB(0)
+DB(1)
+DB(2)
+DB(3)
+DB(4)
+DB(5)
+DB(6)
+DB(7)
+DB(P0)
GROUND
DIFFSENS
TERMPWR
TERMPWR
RESERVED
GROUND
+ATN
GROUND
+BSY
+ACK
+RST
+MSG
+SEL
+C/D
+REQ
+I/O
+DB(8)
+DB(9)
+DB(10)
+DB(11)
-DB(12)
-DB(13)
-DB(14)
-DB(15)
-DB(P1)
-DB(0)
-DB(1)
-DB(2)
-DB(3)
-DB(4)
146
VHD/CI SCSI Connectors
Connector P2
Pin Number
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Signal Name
+DB(0)
+DB(1)
+DB(2)
+DB(3)
+DB(4)
+DB(5)
+DB(6)
+DB(7)
+DB(P0)
GROUND
DIFFSENS
TERMPWR
TERMPWR
RESERVED
GROUND
+ATN
GROUND
+BSY
+ACK
+RST
+MSG
+SEL
+C/D
+REQ
+I/O
+DB(8)
+DB(9)
+DB(10)
+DB(11)
-DB(12)
-DB(13)
-DB(14)
-DB(15)
-DB(P1)
-DB(0)
-DB(1)
-DB(2)
-DB(3)
-DB(4)
Pin Number
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
imageRAID_160.book Page 147 Friday, November 14, 2003 4:14 PM
Appendix B - Port Information
VHD/CI Connector Pin Signals
Connector P1
Signal Name
-DB(5)
-DB(6)
-DB(7)
-DB(P0)
GROUND
GROUND
TERMPWR
TERMPWR
RESERVED
GROUND
-ATN
GROUND
-BSY
-ACK
-RST
-MSG
-SEL
-C/D
-REQ
-I/O
-DB(8)
-DB(9)
-DB(10)
-DB(11)
Connector P2
Pin Number
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
Signal Name
-DB(5)
-DB(6)
-DB(7)
-DB(P0)
GROUND
GROUND
TERMPWR
TERMPWR
RESERVED
GROUND
-ATN
GROUND
-BSY
-ACK
-RST
-MSG
-SEL
-C/D
-REQ
-I/O
-DB(8)
-DB(9)
-DB(10)
-DB(11)
Pin Number
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
VHD/CI SCSI Connectors
147
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Appendix B - Port Information
SAF-TE Service Port
A service port is provided to access the SAF-TE processors and firmware using a
standard null-modem cable. Through this RS-232 service port you can use a
VT-100 terminal or emulation such as HyperTerminal, to access the onboard
firmware for monitoring and maintenance, and firmware update operations.
1
2
6
Pin Number
1
2
3
4
5
6
7
8
9
3
7
4
8
5
9
Signal Name
NC
Rx
Tx
NC
Gnd
NC
NC
NC
NC
SAF-TE Service Port Pin Signals
imageRAID Controller Service Ports
Also located below the I/O card slots are two imageRAID Controller service
ports. They provide the serial interface to each controller allowing for firmware
updates, and access to the firmware-based Disk Array Administration software
using VT-100 terminal or emulation such as HyperTerminal. They are labeled
“CTRL 1” and “CTRL 2.” Below is the pin signals for these ports.
CTRL 1
1
2
6
Pin Number
3
7
CTRL 2
4
8
5
1
9
Signal Name
2
6
Pin Number
3
7
4
8
5
9
Signal Name
1
2
NC
Rx
1
2
NC
Rx
3
4
Tx
NC
3
4
Tx
NC
5
6
Gnd
NC
5
6
Gnd
NC
7
8
9
NC
NC
NC
7
8
9
NC
NC
NC
imageRAID Controller Service Port Pin Signals
148
SAF-TE Service Port
imageRAID_160.book Page 149 Friday, November 14, 2003 4:14 PM
Appendix B - Port Information
Null-Modem Cable
This cable, used to connect a terminal to the SAF-TE service port or the
imageRAID Controller service ports, is a DB-9 (female) to DB-9 (female)
null-modem type. Below is a pin-out for this cable.
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DB-9 to DB-9 Null-Modem Cable Pin Signals
Null-Modem Cable
149
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Appendix B - Port Information
DC Power Supply Connector Pinout
CAUTION:
If the enclosure is connected to a DC power feed source that is not
within the designated -48VDC range, damage might occur to the unit.
A DC power cable is included with the 48VDC Power Supplies and is used to
connect to a DC power feed system.
NOTE:
Use only the DC power cables provided with the system.
Before connecting the cable to the source, be sure the wiring has the correct pin
out as indicated below. The connectors are Molex t ype, plug P/N 50-84-1060 and
female socket P/N 02-08-1002.
48VDC
48VDC
-48VDC
-48VDC
GND
GND
RED
RED
BLACK
BLACK
GREEN/YELLOW
GREEN/YELLOW
Pin
Signal Name
Top Left
Top Right
Middle Left
Middle Right
Lower Left
Lower Right
+ 48 VDC
+ 48 VDC
- 48 VDC
- 48 VDC
GND
GND
DC Cable Wiring Signals
150
DC Power Supply Connector Pinout
imageRAID_160.book Page 151 Friday, November 14, 2003 4:14 PM
Appendix C
Regulatory Information
Compliance Information Statement
We,
Fujitsu Europe Limited
Hayes Park Central
Hayes End Road
Hayes, Middlesex, England UB4 8FE
44-208-573-4444
declare under our sole responsibility that the product,
Type of Equipment:
12 Bay, Storage System Enclosure
Model Numbers:
IRS-JBOD (imageRAID)
IRS-1U160xx-xx (imageRAID)
IRS-2U160xx-xx (imageRAID)
to which this declaration relates is in conformity with the Title 47 of the US Code
of Federal Regulations, Part 15 covering Class A personal computers and
peripherals.
Operation is subject to the following two conditions:
1
This device may not cause harmful interference, and
2
This device must accept any interference received, including interference that
may cause undesired operation.
151
imageRAID_160.book Page 152 Friday, November 14, 2003 4:14 PM
Appendix C - Regulatory Information
FCC Class A Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses and
can radiate radio frequency energy, and if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the
interference at his own expense.
nStor Technologies is not responsible for any interference caused by
unauthorized modifications to this equipment. It is the user’s responsibility to
correct such interference. You are also warned, that any changes to this certified
device will void your legal right to operate it.
WARNING:
Drives and controller/adapter cards described in this manual should
only be installed in UL-listed and CSA certified computers that give
specific instructions on the installation and removal of accessory
cards (refer to your computer installation manual for proper
instructions).
ATTENTION: Les lecteurs et cartes contrôleurs décrits ici ne doivent être montés
que sur des ordinateurs homologués (UL et CSA) et livrés avec des
manuels contenant les instructions d’installation et de retrait des
accessoires. Reportez-vous au manuel d’installation de votre
ordinateur.
152
FCC Class A Radio Frequency Interference Statement
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Appendix C - Regulatory Information
Class A Taiwanese Statement
Class A Japanese Statement
CE Notice
Marking by the “CE” symbol indicates compliance of the device to directives of
the European Community. A “Declaration of Conformity” in accordance with the
above standards has been made and is available from nStor Technologies upon
request.
Class A Taiwanese Statement
153
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Appendix C - Regulatory Information
Power Cord Selection
This enclosure is intended for indoor use only.
This enclosure is intended to be plugged into a 6A branch circuit in
Europe.
To select the proper power cord:
■
■
■
For 110 Volt Operation – Use a UL Listed/CSA Labeled cord set consisting of
a minimum 18 AWG, type SVT or SJT three conductor cord, terminating in a
molded connector body having an IEC CEE-22 female configuration on one
end and a molded-on parallel blade grounding type attachment plug rated
15A, 125V configuration (5 - 15P) at the other end.
For 230 Volt Operation (North America) – Use a UL Listed/CSA Labeled cord
set consisting of a minimum 18 AWG, type SVT or SJT three conductor cord,
terminating in a molded connector body having an IEC CEE-22 female
configuration on one end and a molded-on tandem blade grounding type
attachment plug rated 15A, 250V configuration (6 - 15P) at the other end.
For 230 Volt Operation (Europe) – Use a cord set marked “HAR”, consisting
of a H05VV-F cord that has a minimum 0.75 square mm diameter conductors
provided with an IEC 320 receptacle and a male plug for the country of
installation rated 6A, 250V.
NOTE:
■
■
■
The enclosure automatically selects the proper settings for the input
voltage. Therefore, no additional adjustments are necessary to connect the
unit to any input voltage within the range marked on the drive.
Das Laufwerk sollte nicht im Freien verwendet werden.
In Europa, sollte das Laufwerk an einen 6A-Stromkreis angeschlossen
werden.
Zur Wahl des korrekten Netzkabels beachten Sie bitte folgendes:
230V-Betrieb (Europa) – Verwenden Sie Netzkabel der Bezeichnung “HAR”
die H05VV-F-Kabel und einen Leitungsdurchmesser von mindestens 0,75
mm2 aufweisen. Verwenden Sie eine IEC 320-Buchse und einen für das
Installationsland passenden Stecker, der auf 6A und 250V gesichert ist.
154
Power Cord Selection
imageRAID_160.book Page 155 Friday, November 14, 2003 4:14 PM
Index
A
AC Hot Swappable Power Supplies 4
Active-Active Mode 26
Active-Passive Mode 29
Advanced hardware features 142
Advanced RAID features 142
Alarm Speaker 19, 92
Annunciation LED Sample 96
Attaching the Chassis Ears
Rack mount 38
Tower 40
Attaching the Front Bezel 42
Attaching the Power Cord Bales 43
Attaching the Rails
Rack mount 37
Tower 40
B
Basic Connection Instructions
Topologies 63
Battery 143
Boot and POST Screens 83
C
Cabling DC Power Supplies 43
CE Notice 153
Channel Status LED 18, 90
Clustering 32
Commands Debug 107
Communications parameters
Terminal program 82
Compliance 151
Component Identification 2
Components
Channel Status LED 18, 90
Cooling Fans 7
Drive Activity LEDs 92
Drive Status LEDs 92
Fan Status LED 18, 90
Front Bezel 3
Host SCSI I/O Card 13
Power Supply 4
Power Supply Status LED 18, 90
Power-On LED 18, 90
RAID Controllers 15
SAF-TE Disk I/O Card 9
SCSI SAF-TE Cluster Card 10
Single Bus Module 14
Controller
Problems with 115
Controller Service Ports 16
Cooling Fan Module 7
Cooling Fans 7
D
Data Availability 32
DC Cable Wiring Signals 150
DC Hot Swappable Power Supplies 5
DC Power Supply 5
DC Power Supply Connector Pinout 150
Dimensions 141
Disk Array Administrator Software 82
Disk Channel Error Codes 120
Disk Channel Errors 119
Disk Errors 118
Drive Activity LEDs 92
Drive Configuration
imageRAID - 12 Drives 54
imageRAID - 24 Drives 56
imageRAID - 36 Drives 59
IRS-JBOD - 12 46
IRS-JBOD - 24 51
155
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Drive LEDs 19, 91
Drive Spin-up Mode 12
Drive Status LED is illuminated amber 115
Drive Status LEDs 92
Drives Supported 141
E
EMC 142
EMI 141
Enclosure Component Identification 2
Enclosure Component Monitoring 89
Enclosure Monitoring SAF-TE 99
Error messages 117
F
Fails to power on 109
Fan Speed Control 105
Fan Status LED 18, 90
Fan Status LED is illuminated 115
FCC Radio Frequency Interference Statement 152
Front Bezel 3
Front Bezel LEDs 93
J
Japanese Statement
Class A 153
L
LED
Channel Status 18, 90
Fan Status 18, 90
Power Supply Status 18, 90
LED Matrix 93
M
Menu System 84
Mirrored Operations 31
Model Numbers 151
G
N
General 109
Null-modem
Cable 149
Null-Modem Cable 149
H
Host Cabling 63
Active-Active Single Port 69
Active-Passive Dual Port 74
Single Bus Clustering 76
Stand-Alone Dual Port 66
Stand-Alone Single Port 64
Host SCSI Channel Problems 113
Host SCSI I/O Card 13
Replacing 133
I
imageRAID Controller (JSS122)
specifications 142
imageRAID Controller Firmware 86
imageRAID Controller ports 16
imageRAID Controller Service Ports 148
imageRAID Controllers 15
Installation
Rack Cabinet 36
Tower 39
Installing Disk Drives 41
156
Interface Transfer Rate 141
Interpreting the LEDs 115
IRS-1U160xx-xx 151
IRS-2U160xx-xx 151
IRS-JBOD 151
IRS-JBOD Configuration 46, 51
Index
O
Onboard CPU 142
One-Touch Annunciation 95
Operating Environment 141
Operating Modes Overview 21
P
Pin outs
VHD Connector 145
Pin Signals
Controller service port 148
Null-modem cable 149
SAF-TE Service Port 148
VHDCI 145
POST Screen 83
Power Cord Bales 43
Power Cord Selection 154
Power Requirements 141
Power Supply 4
DC 5
imageRAID_160.book Page 157 Friday, November 14, 2003 4:14 PM
Power Supply Status LED 18, 90
Power Suppy Status LED is illuminated 115
Power System 4
Powering Off
Storage System 80
Powering On
Storage System 80
Power-On LED 18, 90
Product Identification v
R
Rack Cabinet Installation 36
RAID Controllers 15
Relative Humidity 141
Removing the Front Bezel 121
Replacing a DC Power Supply 127
Replacing a Disk Drive 129
Replacing a Down Controller in Active-Active/
Active-Passive Mode 136
Replacing an AC Power Supply 125
Replacing the Cooling Fans 123
Replacing the Enclosure 137
Replacing the Host SCSI I/O Card 133
Replacing the imageRAID Controller 135
Replacing the SAF-TE Disk I/O Card 131
RS-232 Service Ports 16
S
SAFTE Commands Debug 107
SAF-TE Disk I/O Card 9
Replacing 131
SAF-TE Firmware 101
SAF-TE RS-232 Service Port 148
SAF-TE Service Port 16
SCSI Bus Hangs 110, 111
SCSI Device Channel Problems 113
SCSI protocol 142
SCSI SAF-TE Clustering Card
Replacing 131
Securing the Chassis
Tower 40
Sense Key Descriptions 118
Service Ports 16
Single Bus Module 14
Specifications
imageRAID IRS-1U160 enclosure 141
imageRAID IRS-2U160 enclosure 141
imageRAID IRS-JBOD enclosure 141
SSCSI SAF-TE Cluster Card 10
Stand-Alone Mode 23
Status Indicator LEDs 18, 90
T
Taiwanese Statement
Class A 153
Technical Specifications 141
Terminal screen problems 112
Theory 21
Tower Stand 39
Troubleshooting
Common Problems 115
Interpreting the LEDs 115
SCSI BIOS hangs 110
SCSI Bus Problems 109
SCSI ID conflict 110
U
Unlocking the Front Bezel 121
Updating imageRAID Controller Firmware 86
Upgrades 79
Uploading Firmware 101
V
VHD SCSI connectors 145
VHD/CI SCSI Connectors 145
VHDCI SCSI Connectors 145
W
Warning events 116
Weight 141
Index
157
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158
Index
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imageRAID_160.book Page 160 Friday, November 14, 2003 4:14 PM
Fujitsu Europe Limited
Hayes Park Central
Hayes End Road
Hayes, Middlesex, England UB4 8FE
44.208.573.4444
www.fel.fujitsu.com
91-9-94632001 (Y1)
November 2003