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Compellent Presentation to DECUS
The Next Generation Storage Platform
Compellent Confidential, 1
Who Is Compellent?
World’s Fastest Growing SAN Vendor
– Sales growth in 2005 & 2006 > 2.5x
Founded in 2002
– First product ship: Feb 2004
– 150 Channel Partners
Today: over 600 customers worldwide
– Customers in 15 Countries across North America, Europe
and Asia-Pacific
– Growing in Europe since 2006 and now present in France,
Germany, Belgium, Holland, UK, Norway, Sweden and
Switzerland
Support capabilities throughout Europe
– Immediate support response from Compellent 24x7x365
– Hardware spares on-site within 4 hour or Next Business
Day response time throughout Europe
Compellent Confidential, 2
Escalating CAPEX
We need to buy
another new storage
system
We have a lot of
capacity, but we
can’t use all of it
Paying for storage you can’t utilize?
Storage purchases are
increasing 60% to 70%
every year.
Inactive
Data ~80%
Source: Gartner, 2005
UNUTILIZED
UNUTILIZED
CAPACITY
CAPACITY
We need another
new product to fix
that problem
00
01
02
03
04
05
TERRABYTES
What your
IT Department
might say:
Companies are only
using 40% to 60%
of their installed
capacity.
Source: ESG, 2005
YEAR
Reduce storage CAPEX up to 74%.
Compellent Confidential, 3
Increased OPEX
What your
IT Department
might say:
We spend too much
time managing
storage
IT staff utilized efficiently?
The cost of managing storage is rising to as much
as 8x the acquisition cost
We don’t have time
to work on that
project
Storage
Administration
We work nights and
weekends to keep
up
Initial
Acquisition
Training for just that
product is an entire
week
Compellent Confidential, 4
TOTAL COST
Source: IDC, 2004
Cut storage OPEX in half.
Virtualization
Innovative architecture without
legacy limitations
250GB - RAID 5
Exchange on
Windows
1000GB - RAID 10
Oracle on Solaris
Performance optimization
–Automatically read/write data to all spindles
–Efficient use of disk platters – use outside
sectors first
–I/O concatenation
–Elevator sort
Change RAID type for any volume
online
Automatic storage-level
defragmentation
–Automated block placement maximizes
efficiency
Compellent Confidential, 5
RAID 5
Page
Pool
RAID 10
Page
Pool
Disk Folder
Dynamic Capacity “Thin Provisioning”
Steven Dahlin
Compellent Confidential, 6
Traditional SANs
Traditional SAN storage allocation
– Disks are formatted with a specific RAID type
– LUNs are carved from the RAID type
– LUNs are assigned to specific servers
– Administrator must OVER ALLOCATE physical storage to
servers, creating islands of storage
THIS MEANS ALLOCATED BUT UNUSED STORAGE!
Conventional Allocation
E-mail
CRM
Database
Data
Data
Compellent Confidential, 7
Data
Traditional SANs
Why is the traditional SAN structure inefficient?
– Disk storage is captive to specific servers, not all applications
grow at the same rate.
– How do you re-purpose storage? Back up resize, restore - time
consuming, costly, dangerous, not always possible
– Inefficient use of physical storage, not better than DAS.
– If you have storage that cannot be freed up, you have to purchase
additional storage prematurely
Compellent’s Approach
Traditional Disk Mapping
Virtual
Volumes
Vol 1
Compellent Confidential, 8
Vol 2
Vol 3
Vol 1
Vol 2
Vol 3
Dynamic Capacity Difference
Dynamic Capacity
– On line volume expansion is NOT thin provisioning
• Thin provisioning is the ability to provide logical volumes to
servers without allocating any physical blocks of storage
• Compellent supports both thin provisioning and the real-time, online expansion of logical volumes
Compellent Allocation
Shared common
space pool
6+ TB Dynamic Capacity
2TB
Data
Data
Data
Compellent Confidential, 9
2TB
146GB
250GB
146GB
250GB
2TB
146GB
250GB
146GB
250GB
1 TB Physical Storage
Dynamic Capacity Difference
Dynamic Capacity Operates on a
block level - Why is this important?
• OS, file system and application
independence
• The underlying Dynamic Block
Architecture has laid the groundwork for
the possibility of Dynamic Capacity
• Blocks are only assigned to a volume
when the server requests a write
• Supports all types of FC and SATA disk in
the same storage pool
• Physical storage growth is on-line without
server or storage system downtime or
performance degradation
Compellent Confidential, 10
Metadat
a
Disk
Dynamic Block Architecture
Dynamic Capacity Performance
Conventional copy or rebuild
Copy or rebuild
Completion time
Compellent copy or rebuild
Copy or rebuild
Compellent Confidential, 11
Completion time
Dynamic Capacity ROI
Compellent Confidential, 12
Dynamic Capacity Benefits
Benefits
– Less storage is required up front
– Reduce disk spending by adding storage incrementally
– Eliminate downtime due to volume expansion
– Automate capacity planning
– Increase system performance with disk operations based
only on written data (copy/mirror/migrate/RAID rebuild,
replication)
– Unused physical storage is available to all volumes
– Add more servers per storage system
– Significant Return on Investment (ROI) potential
Compellent Confidential, 13
Data Progression
Steven Dahlin
Compellent Confidential, 14
Terminology
ILM (Information Lifecycle management)
– Process of managing data throughout its lifecycle across
different storage media
– ILM has intelligence to look into the content of the files for
application awareness
DLM (Data Lifecycle Management)
– Process of managing data throughout its lifecycle across
different storage media
– DLM is focused on the movement of data
Compellent Confidential, 15
Source: Industry sources
Industry Benchmarks
• Most data is inactive and can be progressed to lower performance
disk/RAID
• Industry analysts and SNIA agree on the 80% guideline for idle data
• Compellent can provide positive ROI at only 35% idle data or more
Compellent Confidential, 16
Current Barriers to DLM
• Data classification requires manual intervention
• Available only on expensive, monolithic storage or dedicated
software / hardware solutions
servers
• Dedicated to today's drive
technologies
• Available only on specific OS
• Operates only at the file level
• Does not address use of
snapshots
SAN
Critical
data
Archival
data
Important
data
Idle
data
Tape library
Enterprise Class RAID
Midrange RAID
JBOD
Source: Infostor
Compellent Confidential, 17
What does Data Progression do?
Data Progression aligns storage to data value
• Allows a volume to exist across different disk types, sizes, speeds and
RAID levels.
• Monitors I/O and distributes data based on block access patterns
• Leverages cost and performance differences between disk types maximizing use of SATA disk for bulk storage and FC disk for high speed
data access
• Optimizes the use of RAID 10, RAID 5 (5) and RAID 5 (9) to further
enhance disk utilization without sacrificing performance
• Snapshot storage is automatically placed on the lowest tier and RAID level
• Enables the adoption of newer disk technology while fully leveraging
previous disk investments
• Provides significant reduction in IT spending
Compellent Confidential, 18
How Data Progression works
Compellent Confidential, 19
How costs are reduced
Fibre Channel
SATA
RAID 10
RAID 5
Disk Technology
RAID levels
Replays
Compellent Confidential, 20
Source volume
Lower cost volume
Enabling Technology
Dynamic Block Architecture™ enables functionality
– Built-in at the block level
– No performance or capacity impact
Metadat
a
Metadata for each block includes
–
–
–
–
–
–
Creation, Access, and Modification time
Frequency of access
Type and Tier of disk drive
RAID level
Corresponding volume
Data type
Compellent Confidential, 21
Data blocks
Disk
Technology
Tier 1
Tier 2
Tier 3
Compellent Confidential, 22
Technology
RAID Overhead
high
high
Disk
Performance
Tier 1
Tier 2
low
Compellent Confidential, 23
low
Tier 3
Technology
RAID Overhead
high
high
low
Disk
Performance
Compellent Confidential, 24
low
RAID
10
RAID
5/5
RAID
5/9
Tier 1
RAID
10
RAID
5/5
RAID
5/9
Tier 2
RAID
10
RAID
5/5
RAID
5/9
Tier 3
Technology
RAID Overhead
high
high
low
Disk
Performance
Compellent Confidential, 25
low
$$$
$$$
$$$
$$$
$$$
$$
$$$
$$$
$
Tier 1
$$$
$$$
$$$
$$
$$$
$
Tier 2
$$$
$$
$
Tier 3
Customer Scenario
Cost
high
high
Performance
Tier 1
Tier 2
low
Compellent Confidential, 26
low
Tier 3
Progression Down
Move to a lower tier
Data
Access
Rate
• Data moves after 12 days of reduced access
• Movement based on tiers selected
• Data and replays are moved independently
time
12 Days
Compellent Confidential, 27
Data
Progression
Progression Down
Data access impact
• Read/write access delays progression
Data
Access
Rate
• Movement based on DP value
• Various tools prevent constant movement
Data Access
Data Access
delay
time
Data
Progression
Compellent Confidential, 28
Progression Up
4 Days
Data
Access
Rate
Data
Progression
Movement to a higher tier
• Data moves after 4 days of increased access
• No access delays progression
• Various tools prevent constant movement
• Movement based on tiers selected
Compellent Confidential, 29
Data Progression
Automatically create volumes or files that
span multiple tiers
– Volumes are presented that look like a
large drive to the server
– Within the volume, multiple types of
storage are used and data is optimally
placed
– No impact to the server
– Only blocks are moved, not files
– Files will be spread across different storage
types
Compellent Confidential, 30
1 TB Database (purchases.db)
Rows from
recent queries
Rows written
last week
Rows with
infrequent
access
Data Progression
Traditional Allocation
Tier 1
15,000 RPM FC
Tier 2
Tier 3
Mid-tier FC
SATA - RAID 5
Exchange.edb
Compellent’s Approach
Tier 1
Exchange Database – 10GB
(exchange.edb)
15,000 RPM FC
Tier 3
Mid-tier FC
SATA - RAID 5
Exchange.edb
500 MB stored
•This week’s calendar
• Inbox
• Recent sent items
• New contacts
Compellent Confidential, 31
Tier 2
500 MB stored
• Next month’s calendar
• Deleted Items
9.0 GB stored
• Previous calendar
• Sent mail
• Contacts
Data Progression Set up
• Each volume
can be
configured
differently
• DIR data is
stored on lower
RAID/Tiers
• RAID and Tiers
can be changed
at anytime
Compellent Confidential, 32
Data Progression Management
• System view of
Tier/RAID use
• Progression
down and up
is forecasted
• Historical
trending is
charted
Compellent Confidential, 33
Data Progression Management
• Volume view
of where your
data lives
• Clear view
of storage
trending
Compellent Confidential, 34
Data Instant Replay
Steven Dahlin
Compellent Confidential, 35
Traditional Snapshot Technology
Copy on Write Limitations
– Performance degradation
– Additional storage captured
– Storage must be pre-allocated for snapshots, reducing
the amount of available storage
– Read only snapshots when recovered
– Might only be scripted or GUI driven or vice-versa
– Do not automatically expire after preset period
– Limited number of snapshots
Compellent Confidential, 36
Traditional Snapshot Technology
Full Copy Limitations
– Consumes additional storage capacity
– Time to create replacement volume substantially higher
– May incur higher software licensing fees
Compellent Confidential, 37
Compellent Data Instant Replay
There is a better way today!
• Intuitive scheduling interface
• Space efficient, time based
replays
• A Replay can be mapped to
any server
• Replays are read and write
• Can recover without full clone
• Extremely small amount of
storage used
Compellent Confidential, 38
Compellent Solution
11:45
12:00
12:15
12:30
Compellent Data Instant Replay
Compellent Solution
• No pre-allocation of storage
required
• Automatic coalescence of
Replays blocks used get
returned to the overall storage
pool
Compellent Confidential, 39
11:45
12:00
12:15
12:30
Data Instant Replay - D/R
• Disaster recovery for every volume
• Efficient
• Restore complete server
– OS, Configuration, Applications and Data
• Recover locally or remotely
• Non disruptive remote testing
Remote
Local
12:00
12:00
12:10
3:00
12:20
Compellent Confidential, 40
changes
only
6:00
Replays / Server Instant Replay
Problem
Scenario
– Recovering from server failures is slow
and resource intensive
Solution – Server Instant Replay
– Recover server(s) in minutes
Painful, Extended Recovery
– Use SAN boot capabilities to centralize
boot volumes and applications
– Recover locally or remotely
Benefits
– Restore complete server
Compellent Solution
Remote Site
•
•
•
•
OS
Configuration
Applications
Data
Best fit
– Server Farms
– Large Boot from SAN installations
Seamless Server Restoration
Compellent Confidential, 41
Space efficient booting
Microsoft Volume copy Shadow Service
2. Freeze
3. Snap
4. Thaw
1
3
Compellent
Volume
•
From Compellent Storage
Controller (manual or
scheduled)
2. Volume I/O freeze
3
Compellent Storage
Controller
1. Initiate Replay request
•
Windows 2003 Storage Server
3. Take Replay
•
•
•
Initiated on Windows 2003
Request to Compellent
Storage Controller
Compellent Replay
4. System thaw
•
Compellent Confidential, 42
Continue with operation
Online backup with Data Instant Replay
• Integration with
VSS/Exchange,
SQL2000 and
Oracle
• Scriptable
Application
Server
Backup
Server
Tape Drive or
Library
Compellent
Storage
Controller
Primary Data Path
Backup Data Path
Compellent
Volume
Compellent Confidential, 43
Replay View
Volume
Intuitive Scheduler
Intuitive interface,
Outlook™-like
scheduling
Unlimited Replays at
user defined intervals
Multiple schedules per
volume
Compellent Confidential, 44
Data Instant Replay Benefits
Benefits
• Instant recovery from file deletion or file corruption
• Support a customer Service Level Agreement (SLA) for
data availability
• Regulatory compliance for data recovery
• Patch deployment testing
• Software development environments
• Disaster recovery testing
• Near continuous data protection
• Serverless backup
Compellent Confidential, 45
Remote Instant Replay Introduction
Steven Dahlin
Compellent Confidential, 46
Value Proposition
Remote Instant Replay brings affordable,
enterprise-class business continuity to
the mid-market
Local
Remote
12:00
12:00
12:10
3:00
12:20
Compellent Confidential, 47
changes
only
6:00
Game Changing Disaster Recovery
Redefine traditional replication
Scenario
Local
Remote
12:00
12:00
12:10
3:00
12:20
changes
only
–
–
–
–
CDP recovery intervals
Replicate data and boot volumes
Simple installation
Lower cost hardware
6:00
Redefine traditional recovery
Bi-directional Replication Modes
Synchronous • Asynchronous • Semi-synchronous
One-to-One
Compellent Confidential, 48
One-to-Many
Many-to-One
Any-to-Any
–
–
–
–
–
Validate while replication is online
Space efficient volume recovery
Server recovery improvement
Eliminates complex testing
Utilize OS virtualization
How costs are reduced
Thin Provisioning
Allocated but
unused volume
Actual data volume
T3 – OC12
T1 – T3
Fibre Channel
IP
Bandwidth
Interface
FC-IP conversion
IP-FC conversion
Fibre Channel
Disk Technology
Compellent Confidential, 49
SATA
Business Continuity
Test and validate replication without downtime

– Any replay can be recovered
– Convert to actual volume with a single command
– Validation occurs in seconds while online
Volume validation
Higher granularity than traditional implementations
Vol. 1
2:00 PM
2:30 PM
3:00 PM
3:30 PM
– Each volume has unlimited replays
Vol. 2
3:00 PM
3:15 PM
3:30 PM
3:45 PM
– All schedules are independent
4:00 PM
5:00 PM
6:00 PM
7:00 PM
– Provides CDP class recovery intervals
2:00 PM
2:10 PM
2:20 PM
2:30 PM
Vol. 3
Vol. 4
Compellent Confidential, 50
Asynchronous Replication
Remote Site 1
Primary
System
Remote
Site 2
IP
network
IP
Router
IP
Remote Site 3
Compellent Confidential, 51
Set Up in 3 Steps
SIMPLE Set Up Wizard
1. Select destination
system
2. Select volumes to
replicate
3. Set Bandwidth QoS
Compellent Confidential, 52
Hardware Overview
Server and disk drive technology independence —
Mix and match any combination
Storage Center Controllers
• Standards-based hardware
• Server and disk connections via PCI cards
• Controller clustering for high availability
– “Shared nothing” approach
– High-speed mirrored, write-back cache
Storage Center Disk Enclosures
• Scale from 500 GB to over 500 TB
• Expand storage online
• FC switched disk enclosure (SBOD)
– Drives supported: FC, Mid-tier FC
– Mix FC and Mid-tier FC
• SATA disk enclosure
Compellent Confidential, 53
Storage Center
Scalable Enterprise-class SAN solution
with block-level intelligence
Supports any open-systems server without agents
– Connect via FC, iSCSI or both
– Scale from 500 GB to over 500 TB
Reduce capital expenditures by 74%
– Automated Tiered Storage
– Thin provisioning
Cut operating expenses in half
– Disk virtualization simplifies administration
– Eliminate the need for 3rd party software
Ensure continuous data availability
– Unlimited snapshots without full copies
– Replication flexibility for low-cost DR
Reduce server costs
– Reliable boot from SAN
Compellent Confidential, 54
Questions
Compellent Confidential, 55
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