Dell™ PowerVault™ MD3
Array Series
“The affordable choice for
reliable storage”
November 2012
Business moves
faster every day
“Most companies spend
70% or more of their
time, money and
mindshare keeping
things going.”
Tina Nunno, VP Gartner
47x
1.8 trillion
850%
Data growth rate in 20111
GB of info created and
replicated in 20112
Gartner predicted growth of installed
TBs in 20163
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Challenges: The Real-World
• IT challenges
– Power, space, and cooling issues escalating
– 55% of average IT budget is hardware, and budgets are
not increasing at pace of needs (InfoPro)
• Storage challenges
– 100% average data growth per year
– Storage requirements growing faster than CPU need
– 50% indicate that storage management, forecasting and reporting
complexity – are top pain points (InfoPro)
– As drive capacities grow, RAID protection is pushed to its limit
Will your storage keep pace?
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What’s New?
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Dell™ PowerVault™ MD3 Array series
Affordable price point, maximum performance and capacity
•
Minimum price point
– Affordable storage without
sacrificing performance
– Lower management cost with
new software features
•
Reliable Data Protection
– Dynamic Disk Pools for worry
free storage through self healing,
dynamic rebalancing
– Virtualization support with VAAI
– Remote replication option on
Fibre Channel and iSCSI
•
Versatile options
– Standard or Dense form factor
– Flexible drive options and
protocols
– Software that you can try for 90
days before you purchase
• What is being announced?
– Software enhancements to
MD3 series
– Dynamic Disk Pools
– VAAI
– Remote Replication
– SSD Cache
– Thin Provisioning
– Try and Buy licensing
• Supports 4TB hard drives on all
MD models*
• Support up to 768 TB of data
*when 4TB is available
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The affordable choice
Scale and optimize your storage cost effectively
• Thin Provisioning can improve
storage capacity utilization and
reduce cost
• Modular design offers easy
expansion that aligns with
business growth
• Software features are pay-as-yougo to meet changing
requirements for more
sophisticated environments
“What we like about the MD3
product line is how much SAN
you get for such a low cost. It’s
pretty amazing that you can get
so much storage and redundancy
so affordably.”
-Timothy P. Carroll
Senior Network Engineer, XS Inc.
• Space savings of the MD3 Dense
4U array and enclosures – up to
720TB in a 12U*
• Try and Buy software licensing
offers software features for a 90
day free trial
*using 4TB HDDs when available
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Maximum performance and capacity
• Option for 1or 10Gb iSCSI;
Fiber Channel ; SAS
• Drives: SAS / NL-SAS / SSD
• SSD Cache option for
faster reads
•
Robust and easy
management software
•
Better VMware with VAAI
•
Looks and feel same with
MDSM
Manageability
Scalability
Flexibility
•
Dense enclosure up to 60
drive in single 4U
enclosure,
•
Up to 180 drives in 12U
•
Over half a petabyte raw
capacity
Availability
•
Remote Replication can mirror data to any global
location
•
Superior data protection with Dynamic Disk Pooling
•
Fully Redundant Hot Swappable Drives and Online
Drive Replacement
Performance
•
Improved performance with Thin
Provisioning
•
ALUA for data path performance
•
Scale up to 192* drives
*up to 192 drives when using the MD3 2U array with expansion enclosures
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Reliable Data Protection
Simplify management with enhanced software features
• Remote Replication – an
optional feature for iSCSI,
offering global data protection
through a common network
• Dynamic Disk Pools - self
healing dynamic rebalancing in
the event of a drive failure
• Enhanced Snapshot - Eliminate
backup windows with frequent
automated backups
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Reliable Data Protection
Dynamic Disk Pools
Traditional RAID falls
Short of Dynamic Disk
Pools
“With Dynamic Disk Pools, you can add
or lose disk drives without impact,
reconfiguration or headaches.”
Balanced: Algorithm randomly
spreads data across all drives
balancing workload and
rebuilding if necessary.
Easy: active spare capacity on all
drives.
Flexible: Add ANY* number of
drives for additional capacity –
system automatically
rebalances data for optimal
performance.
Combining effort: All drives in
the pool sustain the workload –
perfect for virtual mixed
workloads or fast
reconstruction if needed.
* After the minimum of 11
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Reliable Data Protection
Remote Replication
• Replicating data to any global location
– Protects against site failures
– Provides copies of production data
for development and test
– Meets legal data protection
requirements
• Networking convergence of iSCSI over
IP networks
– Eliminate physical and protocol
conversion
– Reduce / eliminate communications
liability
– Leverage ubiquitous IP infrastructure
– Great for single network connected
sites
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Versatile options
New software features for added value
• VAAI Support – faster integration and simplified
management in VMware™ environments
• SSD Cache can help accelerate application performance by
storing frequently read data onto an assigned SSD drive
• Hot swappable drives that are immediately useable – add
capacity and fix issues immediately
• Mix and match drive types and capacities in the same
chassis – immediate adaptation to change
• ALUA – automates and optimizes data path redundancy
beyond legacy approaches
• Data automatically striped to new disks – scale without
downtime
• Streamlined management with MD Storage Manager – no
hidden learning curve or excessive time for training
• Connectivity options – immediately adapt to your existing
infrastructure
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Versatile Options
VAAI for efficient virtualization
Enables IT efficiency by…
• Integrating management for repeatability
• Reducing overhead through fine grain locking
• Limiting SAN complexity by array execution of
storage operations
• Returning server cycles to application execution
Allows clients to…
• Support increased number of VMs
• Increase the number VMs managed per person
• Reduce time to deploy application
“Efficiency in virtual environments is essential to enabling effective IT.”
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Versatile Options
SSD Cache
•
•
•
•
•
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Access
Frequently accessed data is
identified and stored as cache
on SSD
Improve performance can be
shared within a virtualized
environment
One or more SSDs can be
designated as cache
Cache is extendable across
SSDs up to 5TB
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Versatile Options
Thin Provisioning
• Improve storage efficiencies by using storage pools
• Automatically allocate storage as it is consumed
• Lower expenses by purchasing more capacity when it is
needed
Volume B
Allocated
& Unused
Data
Volume A
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Available
Storage
Allocated
& Unused
Data
Data
Data
Traditional
Allocation
Thin
Provisioning
Volume B
Volume A
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Common Use Cases
General Purpose Computing Needs
• Consolidation with business
application workloads
• Business-critical applications where
data must be readily accessible by
users
Intensive Computing Needs
• Research/laboratory for life sciences
informatics & modeling
• Oil and Gas reservoir simulation
computations
• University research and outsource
requirements
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Dell PowerVault MD3 array family series:
MD3200
MD3220
MD3260
MD3200i
MD3220i
MD3260i
MD 3600i
MD3620i
MD3660i
MD 3600f
MD3620f
MD3660f
6Gb SAS
1Gb iSCSI
10Gb iSCSI
8Gb FC
• Great for virtual
environment using
simple shared DAS
• Low cost IP
departmental SAN
• High performance
IP SAN
• High performance
Fibre Channel SAN
• Tier 2 server
consolidation
• Server virtualization
• Existing FC
implementations
• Single room data
centers / Small
server
consolidation
• New data centers
• Centralized backup
• New server
deployments
• High bandwidth
Affordable
Proven price for performance on all
models and a grow-as-you grow
infrastructure.
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Reliable
Software features and data
protection for dependable storage
that can handle any consolidation
need
Versatile
Scale with flexible options for the
customer needed environment to
manage
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PowerVault MD3 dense arrays
Key values and benefits
• High Performance in a space
saving 60 hard drive, 4U form
factor
• High-efficiency, compact
scalability with optimized
performance
• New capabilities like DDP and Thin
Provisioning offer reliability and
storage optimization
• VAAI extends existing integration
with VMware
• Ideal for general-purpose
requirements as well as and
intensive computing environments
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Dell’s Storage
Portfolio
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Dell Storage hardware portfolio
Powering the Fluid Data Architecture
Compellent
Storage
Center
EqualLogic
PS & FS
PowerVault
MD & NX
PowerVault
DL & TL
DR4000
Storage
Platform
DX Object
Storage
Platform
Multiprotocol
enterprise
storage
Unified,
virtualized IP
storage
Modular disk
storage
D2D and D2T
backup
appliances
Disk-based
backup
Selfoptimized
and powerful
Uncomplicated
and versatile
Value and
performance
Simple
protection
and recovery
Massive Scale
Archival
Storage
Reliability
meets
innovation
Efficient | Agile | Resilient
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Simple,
affordable
fixed content
Meet the demands of your business
Leverage Dell’s entire enterprise portfolio
Storage
Fluid Data
architecture is
designed to
automatically and
intelligently optimize
data everywhere.
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Servers
PowerEdge servers
feature customerinspired design,
advanced systems
management, and
innovations in
energy efficiency
Networking
Virtual Network
Architecture:
innovation drives
responsiveness,
agility, and
efficiency for nextgeneration
networks
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Services
A modular,
adaptive and
flexible approach,
configurable for
any organizational
size or budget
Technical
appendix
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Controller technology
Improving performance
6 Gb/s SAS
Host Ports
1
2
Optional
Host Ports
1
2
3
• 6Gb SAS Power PC 440 ROC 800-MHz
processor (Meteor)
4
Host Card
Core
Processor
XOR | P+Q
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Data
Cache
USB
Flash
• PCI Express 2.0 x8 buses between processor
and external interfaces provide 4GB/s of
internal bandwidth per controller
• 36-port 6Gb SAS expander supports internal
drives and external expansion port
6 Gb/s SAS
Expander
Drives
• Super scalar core with a 1.9x
MIPS multiplier that translates
into 1.5-GHZ x-scale
• Performs both XOR and P+Q
1
• 6Gb SAS x4 wide port for
capacity expansion provides 24Gb/s of drive
side bandwidth
6 Gb/s SAS
Drive Port
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Host Port Connectivity and Drive Support
Drive Technology
10Gb iSCSI
1Gb iSCSI
SSD
Capacity
200/800 MLC
2.5 inch drives
15K SAS
146/300
2.5 inch drives
10K SAS
300/450/600/900
2.5 inch drives
SAS
NL-SAS
Fiber Channel
500/1000/2000/
3000
3.5 inch drives
MD3 Dense Arrays and enclosures do not support 3.5” 15K HDDs
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MD3 dense array
Dense array-save space, power and cooling
• High-density 4U disk shelf
supporting 60 SAS drives
• Controlled drawer movement
allows each 12-drive drawer to
be extended while its drives
remain active
• Individual drawer extension and
front access enables safer drive
replacement
• Up to 10% reduction in
power/cooling
4U
7”
• High-speed 6 Gb SAS
interconnects
• Optimized for redundancy and
reliability with hot-swappable
drives and other components
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PowerVault MD3 dense array
Front and back views
Locate LED
Service
Action
Required LED
Power Service
Action
Allowed LED
Over
Temperature
LED
Output DC
Power LED
Power LED
Standby
Drive Drawer
Power LED
Status Service
Action Required
LED
Drive Drawer Status
Service Action
Allowed LED
Standby
LED
Power
Service
Action
Required
LED
Locate
LED
Service
Action
Required LED
Over
Temperature
LED
Power LED
Standby
Power LED
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Input AC
Power
LED
Management Software View
Modular Desk Storage Manager (MDSM)
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Dynamic Disk Pool
Pain points of legacy RAID
Legacy Admin is Complex
•
SA must define RAID groups
•
Decide on how many drives per group
•
Pick RAID levels
•
Manage hot spares
I/O performance is limited by the spindles in a
group
Drive failure recovery can takes days or weeks
with 2TB or 3TB drives
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•
Group performance may drop 30% to 50%
•
With roadmaps from drive vendors showing
24TB drives, recovery could literally take months
•
The system is susceptible to additional drive
failures
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Dynamic Disk Pooling (DDP)
Overview
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•
Dynamic Disk Pooling (DDP) is another system
of underlying volume configuration
•
“Distributed RAID”
•
Maximize capacity and data security
•
DDP dynamically distributes data, spare
capacity, and protection information across a
pool of drives
•
Segments are dynamically
recreated/redistributed
as needed to maintain balanced distribution
•
Significantly faster return to optimal state
following
a drive failure (all drives participate in
reconstruction)
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Dynamic Disk Pooling (DDP)
Performance protection
•
100
•
•
•
80
•
•
60
Delivering consistent performance to
maintain SLAs
Stay in the “green zone”
Performance drop is minimized
following drive failure
Large pool of spindles
reduces hot spots
Each volume spread across all drives
in pool
Dynamic distribution/redistribution
is a non-disruptive background
operation
1.3 DAYS
40
DDP
RAID 6
4+ DAYS
Traditional RAID Volume
2.5 DAYS
120
20
No
Impact
0
Hours
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300GB
Drive- NDA
Dell Confidential
900GB
Drive
2TB
3TB
Drive Global Commercial Channels
Drive
Typical Rebuild Improvements Based on 24-drive Mixed Workload
Dynamic Disk Pooling (DDP)
Data protection with built-in value
DDP Builds on Traditional RAID
•
Unmatched protection against drive failures
and errors
•
Shorter recreation times reduces exposure
to multiple cascading disk failures
•
Any stripes experiencing multiple drive
failures are given reconstruction priority
•
Protects against unrecoverable
media errors during reconstruction
•
Provides significant improvement
in data protection
•
Larger pool provides even greater protection
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RAID
Rebuild
Time
DDP
Recreation
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Dynamic Disk Pooling (DDP)
Budget Protection
•
•
Doing more with less was never easier
Simplified administration lowers management
costs
Optimally configure storage with minimal
effort
Shared capacity for volume expansion
Eliminates hot spare administration
Ability to stay in the “green zone” drives
higher revenue and reduces unexpected
costs
No more repercussions from drive failure
Powerful versatility ensures successful
implementation in any environments
Right-size for any environment
Multiple ways to create storage tiers
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•
•
•
•
•
•
•
•
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VMware vStorage APIs for Array Integration
VAAI Support
• Full copy enables the storage arrays
to make full copies of data within
the array without having the server
read and write the data
• Block Copy enables storage arrays
to copy a single block to some LBA
range to speed up provisioning of
virtual machines (Write Same/Zero)
• Hardware Assisted Locking provides
an alternative means to protect the
metadata for VMFS cluster-file
systems, thereby improving the
scalability of large server farms
sharing a datastore
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ALUA (Asynchronous Logical Unit Access)
Benefits
• Improved Flexibility and IT
Efficiency
– Flexible configuration
accommodation
– Automatic interface /
ownership optimization
– Eliminates environmental
complexity
– Faster deployment of new OS
/ HBA & drives
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Pre-ALUA Path
Failure example
• IO is only serviced by the controller that owns the volume.
• Path failure is reported up to the MP driver.
Server 1 (host)
multipath
driver
HBA
driver
A Controller
HBA
HBA
switch
Server 2 (host)
multipath
driver
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HBA
driver
VOL 1
B Controller
HBA
HBA
HIC
switch
HIC
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Pre-ALUA Path
Failure example
• The host initiates a Volume Transfer to issue IO to the volume on the
alternate path.
• Volume is transferred and IO resumes.
Server 1 (host)
multipath
driver
HBA
driver
A Controller
HBA
HBA
switch
Server 2 (host)
multipath
driver
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HBA
driver
B Controller
HBA
HBA
HIC
switch
HIC
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VOL 1
ALUA Path
Failure example
• The host sends IO to the non-owning controller
• IO shipping is used to route IO from the non-owning controller to the
owning controller.
Server 1 (host)
multipath
driver
HBA
driver
A Controller
HBA
HBA
switch
HIC
VOL 1
IO
Shipping
Server 2 (host)
multipath
driver
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HBA
driver
B Controller
HBA
HBA
switch
HIC
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