Join us for a live webcast and hear Hu Yoshida, Chief Technology Officer of Hitachi Data Systems, discuss the real world criteria for making an effective decision when evaluating flash storage. With all the noise in the market it can be difficult to separate fact from fiction in order to evaluate the performance, efficiency and economic trade-offs for flash storage.
Specifically, you’ll learn how to determine if flash storage will help you:
Actually achieve the performance you need as you compare technology options.
Realize efficiency gains that extend beyond the promise of flash performance.
Make the economic case for real-world business decisions before taking the leap.
2. WEBTECH EDUCATIONAL SERIES
FLASH FOR THE REAL WORLD – SEPARATE HYPE FROM REALITY
Join us for a live webcast and hear Hu Yoshida, chief technology officer of Hitachi Data
Systems, discuss the real-world criteria for making an effective decision when evaluating
flash storage. With all the noise in the market it can be difficult to separate fact from
fiction in order to evaluate the performance, efficiency, and economic trade-offs for flash
storage
Specifically, you’ll learn how to determine if flash storage will help you
Actually achieve the performance you need as you compare technology options
Realize efficiency gains that extend beyond the promise of flash performance
Make the economic case for real-world business decisions before taking the leap
After attending this webcast, you will be able to
Understand the important differences between commodity flash storage and storage
designed for flash
Maximize the return on your flash storage to exceed the abilities of flash appliances
Identify potential efficiencies, beyond performance improvement, that your company
might gain by employing flash storage
3. UPCOMING WEBTECHS
Maximize IT WebTechs
‒ Hitachi Unified Storage and Hitachi NAS Platform Performance Optimization
with Flash Acceleration, August 14, 9 a.m. PT, 12 p.m. (noon) ET
‒ Comprehensive and Simplified Management for VMware vSphere
Environments – Now, Even Better!, September 11, 9 a.m. PT, 12 p.m. (noon) ET
‒ Easily Deploy Microsoft® Private Cloud and Microsoft SQL Server® 2012 Data
Warehouse on Hitachi Converged Solutions, Sept 25, 9 a.m. PT, 12 p.m. (noon)
ET
Check www.hds.com/webtech for
Links to the recording, the presentation, and Q&A (available next week)
Schedule and registration for upcoming WebTech sessions
Questions will be posted in the HDS Community:
http://community.hds.com/groups/webtech
5. HYPE OR REALITY?
Flash storage is nonvolatile
Flash can replace DRAM for cache and memory
Flash SSDs are built for enterprise storage
Flash storage is 10 times more expensive than HDD
Flash storage will replace hard disk drives
All-flash arrays will outperform hybrid flash arrays
6. STORAGE MEDIA TECHNOLOGY TRENDS
Hard disk technology is slowing down – end of 50-year trend
MLC flash will approach price of high-performance hard drives
Optical disk and tape continue price trend
A hybrid pool of flash and hard drives will be required to reduce cost
and increase performance
($/GB)
100.00
ReRAM
PRAM
SLC Flash SSD
10.00
MLCFlash SSD
1.00
SAS HDD
0.10
Random Read Performance
70K IOPS
SAS HDD 0.3K IOPS
0.01 MLC SSD
0.001
CY05
Tape
Optical Disk
CY10
CY15
CY20
Storage Media Bit Cost Forecast
MLC: Multi-level cell, SLC: Single-level cell, SAS: Serial attached SCSI, PRAM: Phase change RAM, ReRAM: Resistance
RAM
7. FLASH NAND TECHNOLOGY
Pages can only be written to formatted
blocks
Thin Oxide
Insulation Layer
Drain
When pages are updated, old pages are
marked invalid
Pages have to be refreshed periodically
since electrons are leaking with every read
and over time
Source
Floating Gate
N+
Formatting is only done on a block level
This limitation causes write amplification
and takes processor cycles for garbage
collection
Control Gate
Substrate
Block A
Page 0
Invalid
Block B
Page 1
Invalid
Page 2
LBA:10
Page 1
Invalid
Page 2
LBA:10
→Invalid
Block A
Page 0
Invalid
Page 0
Free
Page 1
Free
Page 2
Free
Page 1
Free
Page 2
Free
Page 1
Free
Page 2
Free
Block B
Block A
Page 0
Free
N+
Page 0
LBA:10
Block B
Page 1
Free
Page 2
Free
Page 0
LBA:10
Every write degrades the insulation layer until the cell
is no longer usable
8. COMPARISON OF STORAGE TECHNOLOGIES
Technology
Read
Write
Endurance
Cycle
Nonvolatile
DRAM
<10ns
<10ns
1016
No
SLC Flash
25μs
200μs/1.5ms
(Program/Erase)
105
Yes*
MLC Flash
200μs
440μs/2.5ms
(Program/Erase)
103
Yes*
15K HDD
5.7ms
5.7ms
1018
Yes
2013 IEEE NAND Flash SIM: M. Jung et al
* Nonvolatility degrades with writes, formats, reads, and time
9. SSD CONTROLLERS ARE NOT DESIGNED
FOR ENTERPRISE STORAGE
SSD DESIGNED FOR PCS IS OPTIMIZED FOR MANUFACTURING
COST, NOT PERFORMANCE
Units (M)
Single core
Limited memory
Mapping table resident in flash
Bandwidth limits capacity
‒ 400GB modules
“Write Cliff” − I/O performance
is blocked during garbage
collection
Limited system integration
options
No encryption − no shredding
200
160
120
80
Entry-Level PC
Mainstream PC
Enterprise Server
Enterprise Storage
Industrial
2012
40
0
2011
2012
2013
2014
2015
Source: Gartner, June 2012
“Forecast Analysis: NAND, Worldwide, 20112016, 2Q12 Update”
2016
10. FLASH NEEDS TO BE BUILT FROM THE
GROUND UP FOR ENTERPRISE STORAGE
CONSUMER
DESKTOP AND LAPTOP
DATA CENTER
ENTERPRISE SERVER AND STORAGE
LOWEST UNIT COST
HIGHEST PERFORMANCE AND AVAILABILITY
11. EMBEDDED CONTROLLER: A HIGH-PERFORMANCE
FLASH TRANSLATION LAYER
HIGHLY PARALLEL
Eight lanes of PCIe
PCIe
PCIe root complex
Multicore processor
X8 PCIe PHYs
PCIe Root Complex
Integrated DDR-3 interface
Integrated flash controller
logic supports 32 paths to
the flash array
Uses 128 flash memory
chips
Housekeeping is taken out
of the I/O path – no write
cliff
Core
Core
DDR3
To/From DDR
Core
Core
Misc..
Interfaces
UART, UI2C, E
thernet
X16
Flash Controllers
X32
Flash PHYs
Flash
Memory
interface
12. EMBEDDED CONTROLLER
INLINE COMPRESSION FEATURE
Compress in real time any data stream of “0” or “1” by up to 94%
Perform inline encoding of any data chunk of “0” or “1”
‒ Chunk size: 128KB
Algorithm remaps data with a pointer and saves “LA/LRC (data check code)”
VSP Formatted Data
Written on Flash
Chunk Size (128KB)
Data:
Data:
All “1”
All “0”
LA/
LA/
LRC
LRC
Data:
Data:
All “1”
All “0”
LA/
LRC
Compression Data (8KB)
Data:
“1”
All “0”
LA/
LRC
Inline Write Compression
Ptn: LA/ LA/
Ptn: LA/ LA/
“1” LRC LRC
“0” LRC LRC
LA/
LA/
LRC
LRC
13. EMBEDDED CONTROLLER
FORMATTING COMPARISON WITH SSD
Format Execution Time (22.4TB)
280 min.
60 min.
SSD
400GB x 8 (7D+1P)
PARITY GROUP
Hitachi Accelerated
Flash (HAF)
1.6TB x 2 (7D+1P)
PARITY GROUP
14. EMBEDDED CONTROLLER
ERROR CHECK AND CORRECTION (ECC)
Hitachi Accelerated Flash ECC is added to each LA/LRC, resulting in
the ability to correct 48b/1.4KB of data
Increasing ECC size extends the ability to read data as the cells leak
electrons, and reduces the need to rewrite pages
Host data
Generated
Data by VSP
512
8
LA/LRC
Logical
partitioning
1384
1388
1388
1388
1388
1384
A unit of data
That generates
ECC
Flash
data
format
1384
Page#
1388
1388
1388
1388
ECC(Size Varies by Flash Chip Type, 52-84 Bytes)
1384
CRC
17. HITACHI ACCELERATED FLASH STORAGE
4X THE CAPACITY OF SOLID STATE DRIVES, 2X THE DENSITY PER RACK UNIT
1.6TB
19.2TB in 2U
4X
2X
400GB
9.6TB in 2U
18. STORAGE ARRAY − FLASH ACCELERATION
OPTIMIZE HITACHI UNIFIED STORAGE VM (HUS VM) AND HITACHI VIRTUAL
STORAGE PLATFORM (VSP) SYSTEM SOFTWARE TO EXPLOIT FLASH
30+ fundamental software changes to turbocharge performance with flash
Hitachi Storage
‒ New “express” I/O processing
‒ New cache slot allocation method
‒ Reduced ucode overhead and path length
Significant performance impacts
‒ Up to 65% reduction in response time
‒ Up to 4x random I/O scalability
Nondisruptive installation and transparent to
current applications
HUS VM and
VSP Optimized
for Flash
Today
19. VSP WITH HAF COMPARED TO EQUIVALENTPERFORMANCE 15K HDD VSP CONFIGURATION
Greater productivity: Sustain up
to 223% more transactions
Controller
Controller
Increased efficiency and
application performance: Up to
88% reduction in application
response times, allowing support
for more users and applications
Lower environmental cost: Up to
98% reduction in drive footprint
Hitachi
Accelerated Flash
storage and VSP
flash acceleration
Lower price/performance: Up to
65% lower price/performance
Flash
Chassis
Controller
www.storageperformance.org/results/benc
hmark_results_spc1#a00135
20. SCALE TO MANAGE DATA GROWTH
STORAGE ARRAY CONTROLLER PROVIDES SCALABILITY
Global cache internal switch
architecture for scale-up
performance
Dynamically tier virtualized storage
for application data growth
Grow block volumes and file systems
dynamically and without concern for
size
Easily provision block and file
capacity for VMs
Select HAF and/or hard drive options
to balance capacity or performance
SCALE TO
EXTERNAL
STORAGE
HIGHER
DENSITY HAF
and HDD
PROVIDE
LARGER FILE
SPACE
MANAGE
LARGER
POOLS
21. STORAGE CONTROLLER PROVIDES
DYNAMIC TIERING
POOL A
Dynamic tiering
-
Automates the movement of
pages in a volume between
tiers of storage
EFD/Flash
FLASH
Last Referenced
SAS SAS
Fast
Flash
-
Provides performance for the
hot pages
Hard drive
-
Provides capacity for lessactive pages
Optimizes
performance, capacity, and
cost with automation
Last Referenced
NL SAS
22. MIGRATE DATA WITH LESS EFFORT
DATA MOBILITY
90%
Less
Refresh
Effort
Lowest-risk data migration
Speed technology refresh
Minimize outage window
Eliminate application downtime
23. PROTECT APPLICATION DATA
LOCAL DATA REPLICATION FOR INTERNAL USE
Data protection independent of
operating
system, application, or device
Application aware for
Microsoft® Exchange and
Microsoft SQL Server® for
complete data recovery
High-speed object-based
replication over wide area
network
Most space-efficient writable
snapshots available
24. SHARE ANY DATA ANY TIME ANYWHERE
REMOTE DATA REPLICATION
Move data from any storage
system across any distance
Automate recovery to resume
business in minutes, not
hours or days
Deploy locally and remotely
for disaster recovery with no
interruption in service
Replicate data from Hitachi or
other virtualized storage
25. IMPROVE QUALITY OF SERVICE
DESIGNED FOR RESILIENCE AND THE HIGHEST AVAILABILITY
100%
Data
Availability
Guarantee
Hitachi HiTrack
Monitor Service
Online Service and
Microcode Updates
100% data availability
Ensure uninterrupted
access to data
Automatic diagnostics
with call-home service
Update without service
interruption
Mirrored
Write Cache
Active–Active
Clustered File
Services
Shared Resource
Block Controllers
26. HITACHI VSP ACCELERATED FLASH
STORAGE STRUCTURE
UP TO 4 FLASH CHASSIS PER VSP – MORE THAN 600TB OF FLASH
Drive
chassis
Hitachi
Flash Controller
Flash
chassis
Controller
27. HITACHI ACCELERATED FLASH STORAGE
FOR HITACHI UNIFIED STORAGE VM
1.6TB per flash module
12 modules per 2U enclosure – 19.2TB
Up to 8 flash enclosures per system –
maximum 154TB
5U controller with 16 cores, 256 GB cache
and 36 FC paths
28. FLASH ECONOMICS
Hitachi
Accelerated
Flash with VSP or
HUS VM
3 x Better $/IO
Than Solid State
Drives
7 x Better $/IO
Than Hard Disk
Drives
500,000 IOPS
500,000 IOPS
240,000 IOPS
8 drives
80 drives
768 drives
9U
13U
69U
$1 per I/O
$3 per I/O
$7 per I/O
30. HUS VM FLASH VS. COMPETITIVE
ALL-FLASH ARRAYS
1,000,000
HYBRID ARRAYS
IBM®
XIV
HP
3PAR
EMC
VNX
ALL-FLASH ARRAYS
HUS
VM
Violin
Memory
IBM
Pure
EMC
Flash Storage XtremIO
System
RANDOM IOPS
31. COMPETITIVE FLASH STORAGE FEATURES
ONLY HITACHI DATA SYSTEMS DELIVERS
FULL-FEATURED UNIFIED STORAGE
WITH FLASH ACCELERATION AND
TIERING ACROSS INTERNAL
AND EXTERNAL STORAGE
ACCELERATED HDS
FLASH
EXTERNAL
VIRTUALIZATION
ONLY HITACHI DATA SYSTEMS
DELIVERS DURABLE HIGHPERFORMANCE FLASH
MODULES DESIGNED
FOR ENTERPRISE
STORAGE
THIN PROVISIONING
AUTOMATED TIERING
HDS, EMC, IBM®, NE
TAPP
HDS, EMC, HP, IBM
REMOTE AND LOCAL
REPLICATION
HDS, EMC, HP, IBM, NETA
P
UNIFIED
HDS, EMC, HP, IBM, NETA
P, NIMBUS
FLASH STORAGE
HDS, EMC, HP, IBM, NETA
P, VIOLIN,
NIMBUS, PURE, ETC.
32. HUS VM ALL-FLASH STORAGE ARRAY
145 PATENTS FILED FOR HAF AND FLASH ACCELERATION
1,000,000
Up to 154TB
IOPS, <1ms
flash storage
response
Unified and
virtualized
capacity
Best storage
optimization
for flash
Best flash
form factor
and
durability
More flexible
than all flash
systems
Hitachi flash
acceleration
software
Hitachi
Accelerated
Flash
Hitachi
Command
Suite
33. HYPE OR REALITY?
Flash storage is nonvolatile
Flash can replace DRAM for cache and memory
Flash SSDs are built for enterprise storage
Flash storage is 10 times more expensive than hard
disk drives
Flash storage will replace hard disk drives
All-flash arrays will outperform hybrid flash arrays
35. UPCOMING WEBTECHS
Maximize IT WebTechs
‒ Hitachi Unified Storage and Hitachi NAS Platform Performance Optimization
with Flash Acceleration, August 14, 9 a.m. PT, 12 p.m. (noon) ET
‒ Comprehensive and Simplified Management for VMware vSphere
Environments – Now, Even Better!, September 11, 9 a.m. PT, 12 p.m. (noon) ET
‒ Easily Deploy Microsoft® Private Cloud and Microsoft SQL Server® 2012 Data
Warehouse on Hitachi Converged Solutions, Sept 25, 9 a.m. PT, 12 p.m. (noon)
ET
Check www.hds.com/webtech for
Links to the recording, the presentation, and Q&A (available next week)
Schedule and registration for upcoming WebTech sessions
Questions will be posted in the HDS Community:
http://community.hds.com/groups/webtech
EMC will announce this calendar quarter their new VMAX II; rest assure we are ready to compete with the VSP.Here are some of the key enhancements which we will deliver this calendar year to give you the upper hand:More flash options, starting with Multi layer (MLC) SSD this month and additional MLC flash based product later on this year A new VSP microcode with a huge performance and scalability boost, we called it flash acceleration. This enhancement will be deliver to our existing customer
Current SSD vendors are focused on the volume market (laptop and PC) which is tied to the 2.5 inch and 3.5 inch form factor….. Their focus is on lowest cost per unitOur focus is for a different use: for enterprise workloads and data center applications. Our focus is on true sustained performance (Random reads/writes, Sequential), lowest bit cost, capacity and extended endurance.
Explicit
Explicit
Explicit
Explicit.Superior data integrity is designed in the flash controller, each FMD ECC can correct 48 bits per 1.4KB vs MLC NAND specs of 24 bits per 1KB.
Explicit
Hitachi unique flash module packaging offers 4x the capacity of 400GB SSDWhen used in the storage system, these flash modules double the density per rack unit over solid state drives
But Hitachi flash innovation extend well past our Flash controller and up into our HUS VM and VSP systems. While the SPC performance numbers that Silverton Consoluting mentioned earlier in the presentation already demonstrated the high performance of our HUS systems, the architectures of the VSP and HUS VM allow for even greater performance scalability and customization.For years, storage systems were built with the idea that the performance was held back by spinning disk drives, and system software was optimized to make the most out of that situation. With flash, vendors are rushing to re-architect key parts of their onboard system code to more quickly move data around the inside of storage systems to keep up with the high performance of Flash. Hitachi, however, isn’t scambling to deliver this customization. We already have.VSP optimization was delivered in 2012 and HUS VM will be delivered in June 2013. The system code for these arrays see significant flash-focused re-engineering, with over 30 fundamental changes to the code to enable higher thread-count processing and faster movement of data. Response times improve significantly and provisioning and functions become twice as useful.Of course, in staying with Hitachi’s focus on high-availability, these changes are non-distruptively installed and become transparent to other installed storage replication or management tools.
To match the growth of your company’s application data, we give you several ways to scaleDynamic provisioning creates large, dynamic storage pools of dataDynamic tiering automates data placement of both internal and externally attached dataTo meet the workload demands of your virtual servers, both block and file data may be provisionedAnd you can scale out to manage, provision and reclaim space in external virtualized storageVery high density storage can be configured with dense trays and SSD options
Our method of data migration is the lowest risk method availableVirtualizing storage reduces outage window to applications to speed up technology refreshIn fact, data migration can be performed with 80% less effort then host or replication based methodsHost and replication methods can take up to 3 hours: estimating 150 minutes makes the virtualization method 80% less (150-30/150=.8)Because the storage controller is moving data in the background, there is no impact to performanceOur Nondisruptive solution will eliminate the application downtime currently required without ever touching the host, supports clustered configurations and will be performed with more automation to lower the technology refresh effort and risk.Host based methods include migration using replication technology (not array-based replication) which involves replication of storage volumes. Volume management is used primarily to control disk resources by mapping the logical view of storage space with the actual physical disks. Host-based mirroring or replicationsolutions generally focus on file-by-file data movement to create asecondary data copy for disasterrecovery purposes. Using server virtualization such as VMware VMotion to assist with servermigrations that can assist withmigrating the data as well. It is usedfor a storage area network (SAN)environment that is supported byVMware and when migrating aVMware virtualized environment. Host-basedmigrations that leverage NAStechnology for file-based migrationseither through NFS or throughCIFS to migrate CIFS or NFS filesystems to or from an existingproduction file server NAS systemto another, files are moved basedon the network or file systemprotocols. File system-based data replication allows copyingor relocating of both file data andfile system metadata, dependingon the type of server operatingsystem, replication software or NASsolution. Replication can includenot only the data but also thepolicy, rules and schedules for thefile system environment.Source: Data Migration Best Practices and NondisruptiveMigration Service Capability for Enterprise Storage,February 2012http://ucmprodextranet.corp.hds.com/conx/groups/intranet/documents/contentasset/01_072393.pdf
Hitachi ShadowImage® Heterogeneous Replication software enables immediate use of data in decision support, software testing and development, and data protection operations independent of operating system, application or device. Hitachi Thin Image will be available in the first microcode update. Hitachi Thin Image replaces Copy On Write to provide logical snapshot data replication within Hitachi storage systems.Hitachi Replication Manager is application aware for Microsoft Exchange and SQL so you can restore application data knowing it is integrated with both applications for complete or tuned recovery.JetMirror: Object Based High Speed Replication is 26x faster than file replication with incremental changes and 2.8x faster than file replication on full file replication Ideal for DR and data migration w/small backup window,Achieved by eliminating need to lookup directories/filesUnlike block replication, does not send empty containers due to object-awareJetMirror: File Replication Option:Granular replication of file system directories, virtual volumes, or snapshotsPolicy-based management and schedulingleverages built-in snapshot and NDMP featuresPreserves user/group permissions and quota information,Asynchronous only over IP networksJetClone: Most Flexible and Space Efficient,16x more clones per file system. Reduces file system limitations inherent with competitors.Space efficient “file clones” for virtual desktop infrastructures (VDI) and large writeable snapshotsCreate More Clones-Don’t run out of space for cloning data due to File System limits.Clones only container files, not whole file systemA single File System holds thousands of container filesRapid CloningUses same source data as an existing volume Highly Space Efficient-Contains only pointers to shared blocks from the original container file-User adds only the unique data to a clone
Hitachi Universal Replicator will replicate any data from any storage system virtualized across any fibre channel distanceHitachi TrueCopy SynchronousRemote Replicationhost independent data replication automates the recovery process Based upon our virtualization technology, both HDS and non-HDS storage data may be replicatedAsynchronous, logged transmission ensures there are no interruptions in service from synchronization delaysThus allowing you to ensure automated recovery to meet your objectives without interruption
The100% data availability guarantee is available for Wister – no one else offers oneThe 100% data availability guarantee is an optional contract exhibit, not everyone automatically receives itThe terms are the same as VSP: HiTrack is required and so is an active service agreementWister is an entry enterprise storage system based on VSP architecture, it is not midrangeEntry enterprise storage requires enterprise availabilityThe file module is available in a clustered configuration for higher availabilityThe block module features shared processor and cache resourcesNew design integrating VSP functions into smaller package utilizing the HiStar Network architectureNot a scaled down VSP, an all new product specifically designed for this market segmentCache backup protection is onboard via flash device which is battery powered Hitachi HiTrack remote monitoring is available to oversee system functionsUpdates of components and microcode can be accomplished under operation
The building block of Hitachi Accelerated Flash storage is the flash module drive(FMD) to the left. At announcement the 1.6TB flash module is available, the 3.2TB FMD is scheduled for March 2013.The width of the FMD is roughly equivalent to a 3.5 inch LFF disk drive, except that it is much deeper. This new form factor optimize the depth of the rack which is currently not use in most storage chassis design using commodity form factor.This new design double the flash density currently possible with SFF SSD and quadruple the available capacity per device when compared to the 400GB MLC SSD currently shipped with our VSP.A new flash chassis is required to support these flash module; it fits in a standard 19 inch rack and will consume 8U of rack space with an extra 5U space needed for cabling. By default, the flash chassis will be installed 1st in the SAS chain, located just above the VSP controller chassis.
The new Hitachi Accelerated Flash storage option for HUS VM includes:The 1.6TB flash moduleUp to 12 flash modules fit in the 2U flash storage enclosureUp to 8 flash storage enclosures are supported per HUS VM system96 flash modules for 154TB raw maximum capacity in 16 rack units
Hitachi Accelerated Flash storage triples the economics over solid state based HUS VMLower cost per IO: 500,000 IOPS with flash = $1.03, SSD = $2.87 (list prices). 2.87-1.03=1.84, 1.84/2.87=64% improvement or 3xIt requires 80 SSD to achieve 500,000 IOPS while only 8 HAF modules can achieve 500,000 IOPS. HDD cannot achieve this performance.All prices are US list pricePhysical space savings are also substantial compared to SSD and HDDReference sources:http://www.thestoragealchemist.com/flash-is-really-about-economics/?sf12791614=1http://wikibon.org/wiki/v/Performance_Centric_Data_Storage_TCO_Study_Demonstrates_Cost_Advantages_of_Flash_Arrayshttp://wikibon.org/wiki/v/Case_Study:_The_Hunting_of_the_RARChttp://wikibon.org/wiki/v/Flash_and_Hyperscale_Changing_Database_and_System_Design_Forever
In this comparison the Violin Memory 16TB model 6616 (SLC) is compared to the HUS VM at 13TBAt list price they are fairly similar. The source for pricing is the Cisco TPC-C disclosure below.The source for the Violin performance data is the ESG lab validation below of two arrays. We have discounted the 4K IOPS by 40% for a single array to equal out the IOPS at an 8K block size.HUS VM was configured with 8 FMDs in 2 trays, 64GB cache, 2 FC I/O modules, 4 SAS I/O modulesWe’re giving Violin credit for 500,000 8K IOPS even though they claim 1 million 4K IOPS.Sources: Violin Memory TPC-C with Cisco http://c970058.r58.cf2.rackcdn.com/fdr/tpcc/Cisco-Oracle%20C240%20TPC-C%20FDR.pdfV-6000 Memory Array (V-6616-HA64-8xFC) $540,000 + $54,000 3 year bronze maintenance = $594,000 (10/26/12)ESG Lab Validation Violin Memory http://www.violin-memory.com/wp-content/uploads/ESG-Lab-Summary-Violin-6000-Series-Flash-Memory-Array-Aug-12-2pgr.pdf?d=11,352,467 4K IOPS with 2 Violin model 6616 arrays. 676,233 per array. Discounting the 4K workload by 40% = 405,740 8K IOPSViolin Memory published two performance results using Oracle to simulate 4K and 8K IO on their MLC flash product. The first in June 2012 and the other on August 2012While Violin Memory claimed that the 3205 model (MLC flash) is rated at 300K 4K IOPS, their true 8K performance is much less based on their first benchmark published by a factor of 40%. It is reasonable to assume a similar 40% decrease in the August 2012 results due to the same overhead associated with larger block size.http://loop.hds.com/thread/9494?tstart=0HDS HUS VM list price $513,721 for 8 FMD in 2 trays with 64GB cache.
Hybrid ArraysEMC VNX 7500 240,000 IOPSHP 3PAR StoreServ 10400 210,000 IOPSIBM XIV Gen 3 180,000 IOPSAll Flash ArraysViolin Memory 6616 SLC 1 million IOPSIBM FlashSystem 820 eMLC 525,000 IOPSPure Storage FA 400 400,000 IOPSEMC XtremIO X-brick 250,000 IOPS each
Starting from the bottom and working our way up:There are may types of flash storage offerings – every major storage vendor has one whether it is solid state drive based or unique all flash designsFewer of these flash offerings are multiprotocol or offer file integration as wellFew all flash vendors have sophisticated replication capabilities, it is the major storage vendors who can offer viable replication technologies for backup or disaster recoveryEven less of the storage offerings available have both thin provisioning and automated tiering. Although these features are standard now for the top storage systems, you will not find these capabilities in the all flash storage offered by the startupsExternal storage virtualization as we know is only available from HDS, EMC, IBM and NetApp with HDS being the leaderAnd finally, adding up all the capabilities, only HDS can offer an all flash unified array with external virtualization, remote and local replication, thin provisioning with automated tiering in a single storage system with one management platform
As we’ve discussed, HUS VM with flash delivers:Hitachi innovative Accelerated Flash Storage delivers higher performance for faster access … here HAF provides very low latencies.Better efficiency – more intelligent use of assets by placing frequently accessed data on HAF and data that is access less frequently on more cost effective HDDs.This unique storage system goes beyond flash. It is completely upgradable to a tiered storage system with hard drives, extends to third party storage with Hitachi external storage virtualization and may be upgraded to a unified platform to consolidate both block and file data.Hitachi delivers much more value than flash only storage systems. As an all flash system it accelerates application performance and may be upgraded for many more capabilities for consolidating file data, tiering data, disaster recovery, data mobility and analytics.Hitachi HUS VM All Flash = No Compromises Flash StorageHitachi Flash Acceleration software à Best Storage Optimization for FlashHitachi Accelerated Flash storage à Best Flash Form Factor and DurabilityUnified and Virtualized Capacity à More Flexibility Than Any Other All Flash system