right data right place right time: automated data tiering - mike klemm, distinguished engineer and...
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Right data right place right time: automated data tiering
Mike KlemmDistinguished Engineer
Right data right place right time: automated data tiering
Lazarus VekiaridesExec. Director, EqualLogic Software Engineering
Fluid Data tenets: engineered to move your business forward
Better togeth
er
Best ownershi
p experienc
e
Innovative
licensing
Maximum efficiency
Dynamictiering
Native cloud
integration
Scale-out designs
Self protectin
g
Data growth and its impacts
1 Horizon Information Strategies, Storage Facts, Figures, Best Practices and Estimates, April 20112 IDC, Worldwide Enterprise Storage Systems 2011-2015 Forecast: “Emerging” Once Again is a Keyword in the Storage Market, #228255, May 2011
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
WW Enterprise Storage Capacity Shipped (Petabytes)2
48% CAGRgrowth in storage capacity requirements
46%time of storage staff spent on operations1
Storage Administration
Total Hours
Provisioning
Migrations
Backup
Storage budget is hardware1
amount of storage typically underutilized
zSer
ies
iSer
ies
Unix/
Linu
x
Win
dows
0
20
40
60
80
Average Disk Allocation Levels
(upper/lower range shown)2
Per-GB costs for high-capacity storage can be
1/30th the cost of high-performance storage *
5
*Cost multiples are estimates only, based on recent component cost data, and subject to change.
Reduces costs• Aligns inactive data
with capacity-optimized storage
Improves performance• Aligns demanding
applications with performance optimized storage
Storage tiering provides two benefits
30XTier 1
3XTier 2
XTier 3P
erf
orm
an
ce
Cost
Not all tiering is created equal
Volume
Storage pool
• Complete virtualization of storage
• Granular approach
• Intelligent automation
• Non-disruptive data movement
• Performance and capacity optimization
Metadata: information about
each block
Read20
timessince
12:05:09...
Dell storage tiering approaches
Compellent Data Progression
EqualLogic Load Balancing
• Optimizes data placement across 3 tiers
• Balances across multiple axes– Drive type– RAID level– Platter location
• Optimizes data placement and network load
• Balances load in a pool of arrays
– Capacity– Performance
• Balances load within a hybrid array
• Highly virtualized, IP-based storage with a peer-scale architecture
• Ideal for IT generalist
• Multi-protocol, core storage for the enterprise and critical workloads
• Custom-tuned by storage administrator
Capabilities Use cases
NetworkI/O balancing and MPIO
EqualLogic automated tiering
Capacity Manages disk utilization
Automatic performance Optimizes high I/O data distribution throughout the pool
Hybrid arrayDistributes high I/O data throughout the array
Latency: 2 ms Latency: 2 ms
Automatic load balancing
EqualLogic SAN
Latency: 1 ms Latency: 4 ms
Spreads data across all available resources
• Dynamically adjust to workloads
• Real time I/O balancing
• Move hot and cold data
• Improves performance
• Capacity balancing
• Access frequency vs. array latency
SSD NL-SASSSD NL-SAS
Storage pool
Array 1 Array 2
Prioritize placement for application optimization and maximum value
• First place data on SSD
• Move data to HDD
• Frequent access = hot data
• Move hot data to SSD
• A portion of SSD can be used as controller write cache extension
• Very different than SSD cache
Hybrid arrays: auto tiering within the array
Virtualized, automated SAN-wide tiering
Solution • Tier 1: 1 PS6010XVS• Tier 2: 5 PS6510XV • Tier 3: 3 PS6510X• 250 VMware vSphere™ VMs running
Microsoft™ SQL Server® and other business applications
Results• 2X improvement in query
performance• 80X faster creation of new
customer environments• 100% availability over 16 months –
zero need for planned downtime
“Dell EqualLogic greatly simplifies the process of adding a new SAN…. The firmware automatically begins load balancing to the new array, with no downtime.”
Robert ScarbroughVice President, Technical OperationsOptumInsight
MetadataTracks page usage within volumes
Compellent automated tiering
MigratesBetween tiers, RAIDs and within drives
WritesDirectly to tier 1
13
Data progressionDaily data movement• Default start time is 7 p.m.• Data is moved per page• Historical Replay pages
eligible to move to lowest tier immediately
• Data progression will run against multiple volumes at the same time
RAID restripe occurs• Adding additional drives
14
Fast Track
• Places the busiest pages on the outer portion of the drive – the “Fast Tracks”
• Uses the same data movement engine as data progression
• Data is moved when progression runs
Full disk drive With fast track
The most active blocks are dynamically and automatically
placed on outer edge
Efficient operations at cloud scale
Solution • Compellent SAN:
– Tier 1: 9 SSDs – Tier 2: 15K RPM Fibre Channel – Tier 3: 7,200 RPM SATA drives
• 29 VMs running SAP applications on 4 Dell PowerEdgeR710 servers
Results• Performance gains from 80% to
400% • Full backups down from 16 to 6
hours• System-wide snapshot process now
takes 30 seconds
“Thanks to the way the architecture manages data at the block level, we discovered we could perform I/O writes to the storage system very rapidly.”
Kai SookwongseMazda North American Operations
How Fluid Cache tier works
Low-latency interconnectStorage network
Fluid cache SW
PCIE SSD
• Extension of fluid data tiering
• Cluster-wide cache pool
• H/A through redundant cache writes
• Ease of management
• Full integration with array data protection
Confidential
Accelerating efficiencies
High Availability • Fault tolerant between nodes
Unprecedented Performance• Accelerate applications by up to 30X*
over traditional SAN with rotating media
• Increase the number of users per server by 10X
Efficient• Double the number of VMs per server• Reduce infrastructure support by 1/6
for same user count and SLAs
Better together• Systems management for server and
SAN work in concert • Largest working data set for cache with
full coherency to SAN
* Garner #G00231588 IOPS HDD vs. SSD
Let Dell help you fulfill your whole IT visionwith our extensive enterprise portfolio
Storage
Fluid Data architecture is designed to automatically and intelligently optimize data everywhere
Servers
PowerEdge servers feature customer-inspired design, advanced systems management, and innovations in energy efficiency
Networking
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Services
A modular, adaptive and flexible approach, configurable for any organizational size or budget
Dell Fluid Data architectureThe right data in the right place at the right time for the right cost
Primarystorage
Offsitestorage
Backupto disk and tape
Applicationservers
CloudObject-based archive
X = relative performanceTier 3
3XTier 2
30XTier 1
100X Tier 0
Fluid Cache tier
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