1. Changing the Economics of Storage: Flash at the Price of Disk
Harmeet Malhotra
Director
Enterprise Storage & Solutions

2. Agenda Workloads, Disks & SSDs – what’s common.
Why Flash Drives in Enterprise Storage?
What is Dell doing different with Flash…
Compellent
EqualLogic

3. Data centers need to handle many types of diverse application workloads
Random
Sequential
Read-intensive
Write-intensive
Indexing
Front End Web
OLTP Database
/Messaging
Data Warehousing
Virtual Desktop
HPC
Streaming Media
Web Applications
Collaboration
Infrastructure
Other
Applications are getting more dependent on higher I/O performance
Data stored, backed up and archived is growing exponentially
IT budgets are often staying flat
Traditional storage systems are optimized for the middle of the spectrum
SLAs are becoming more rigorous

4. What characterizes your workloads
What characterizes your workloads? Traditional “one size fits all” data storage strategy is inefficient
Performance
Hot data that needs to be retrieved extremely fast without latency
IOPS vs. throughput
Access patterns and frequency
Data accessed frequently vs. cold, rarely accessed data
Heavily read vs heavily written data
Data optimized for tiering vs caching
I/O patterns
Read and write percentages
Transfer sizes
Sustained vs. bursty I/O patterns
Business value
Data that is highly valuable to the business and can be used for deriving business intelligence, financial analysis, etc.
Each type of data needs to be treated differently to align the application performance with capacity and cost requirements

5. Reliance on I/O-intensive solutions for critical applications is growing
Hot/
Active
Data
I/O intensive solutions growing at 57% CAGR as SSD prices are reduced
Cost/capacity optimized 19% CAGR growth is driven by the explosion of unstructured data
Cold/
Static Data
I/O Intensive (Flash)
Performance Optimized
Cost Optimized
IT Managers are looking for storage solutions that can span both, hot and cold data, optimizing for performance and value
IDC,, Worldwide Enterprise Storage Systems 2013–2017 Forecast, May 2013; Doc #241033

6. Flash adoption is accelerating Pent-up demand for improving application performance at the right price point
Flash prices falling faster than HDDs but still considerably higher than 15K HDDs
New form factors: PCIe cards, appliances, shared storage
15K HDD
Flash SSD
$/GB
7.2K HDD
Multi-core processors drive up processor utilization and demand for more I/O per server
Virtualization is increasing the demand for random I/O with the “mixer effect”

7. Flash storage can be deployed at various layers to accelerate application performance
Client
Network
Server-based cache (Tier-0)
Flash drives placed directly on high speed PCI bus in application servers
Caching software enables server to leverage flash storage as an extension of memory cache
SSD tiering in shared storage
A few SSDs can be added to the array to dramatically increase performance for targeted workloads OR
An entire storage tier can be deployed on SSDs so that complete volumes and datasets can be fit in flash
COMING SOON: Fluid Cache for SAN
Benefits of Fluid Cache extended to the entire SAN for maximum performance and reliability
Dell
Fluid Cache
for DAS on PowerEdge
Storage
Network
Dell
Compellent
All-Flash or Hybrid-Flash Array

8. Best use of flash storage: transactional, IOPS-intensive workloads
Indexing
Data
Warehousing
OLTP 1 2
VDI 3
Random 4
Read-intensive
Write-intensive
Sequential
Indexing
Maintains indexes to allow quicker access to data
Runs on databases to accelerate locating a block of data in queries
Data Warehousing
Stored data used to create reports or derive Business Intelligence
Used for data mining, analysis, hypothesis testing, modeling
OLTP
Manage transaction-oriented applications, i.e. retail, banking
Business can be hurt if data not accessible,slow
During peak usage, customer experience can be effected
VDI
Hosting desktop OS within a VM on a centralized server
Facilitate a quick retrieval of gold images
Boot storms, write allocations and latency are issues

9. What can flash storage do in your data center
What can flash storage do in your data center? A way to accelerate business results and improve operational efficiency
Accelerate business
New revenue streams through reduction in latency and increase in IOPS
Quicker business insights
Faster user access
Better customer experience
Increase operational efficiency
Minimized datacenter footprint
Lower power consumption
Lower cost of software licenses
Simplified management

10. Compellent Hybrid-Flash Array
SSDs have different characteristics
Compellent is the first storage solution to tier sub-LUN data across SSDs
Write-Intensive (WI) SLC SSDs
Read-Intensive (RI)
MLC SSDs
WI SLC
SSDs
Workload
Mainstream Applications
Any usage
Mostly Read
90/10 R/W Mix
Tier 1
Capacity
400 GB
1.6 TB
Write endurance
Great
Moderate
RI MLC
SSDs
Tier 2
Full-drive writes/day 30 3
Random read perf.
Great
Great
Write performance
Great
Moderate
HDDs
Relative costs 4x 1x
Tier 3
Compellent Hybrid-Flash Array
Tiering flash across multiple SSD types enables Compellent to disrupt the flash cost model with a superior $/GB ratio.

11. All Dell Primary Storage Solutions offer Flash
Workload-optimized solutions for any size enterprise
Compellent
High-performance storage
EqualLogic
Easy-to-use virtualized storage
PowerVault
Affordable, entry level storage
Dell Software
Data management and protection
Converged infrastructures
Cloud deployments
I/O intensive
applications
Vertical file-intensive apps
Maximize efficiency, drive results faster and boost resiliency

12. Lets look at Dell Compellent first

13. Secret sauce behind the flash optimized Compellent: tiering with Data progression
RAID 10
RAID 6
Write Intensive
Enterprise SAS SSD
Read Optimized
RAID 5
7.2K SAS HDDs
Flash-optimized Data Progression leverages the endurance of write-intensive SSDs and the value of read- intensive SSDs.
$$$ $$ $
Advanced software tiering seamlessly manages data
Incoming writes are written to the write intensive SSDs for fast access
Read intensive data is automatically moved to less expensive read optimized SSDs keeping Tier 1 free for new incoming writes
Cold and non-performance data is migrated to lower tier, less expensive rotating disk
By automatically tiering data across SLC and MLC SSDs, Dell can reduce costs up to 80% compared to other Flash- optimized solutions.

14. Workload requirement:
New economies of flash: tiering innovations allow Compellent to offer flash at the price of disk
Workload requirement:
40,000 IOPS
30TB Raw Storage
84% RU reduction
50% more IOPS
90% latency reduction
56% lower price
Benefits of Tiered Flash
264 x
15k HDDs
Space Savings
24 x
SSDs

15. Single SSD type (SLC or eMLC) only
New economies of flash with Compellent :
1/5th the price vs. competitive all-flash solutions
Compellent
With Flash Tiering
Other Vendors
Single SSD type (SLC or eMLC) only
Write Intensive (SLC)
Read Intensive (MLC)
Hardware
80%
Lower costs
Higher
costs
Power / Cooling
Software
Support

16. New economies of flash with Compellent :
1/2 the price vs. competitive hybrid solutions
Competitors
50%
Less
Solution Price $/GB
Significant price advantage with Compellent hybrid solutions due to tiering flash across multiple SSD types.
Compellent
WI or
RO SSDs
Aggregate $/GB of competitive hybrid systems
Using flash tiering:
Tier 1: WI SSDs
Tier 2: RI SSDs
Tier 3: 7k HDDs

17. Designed to address multiple performance levels Compellent helps align storage performance with workload requirements
All-flash for business critical workloads
Large capacity flash with low latency and scalability
Tier 1 applications
OLTP Oracle database
VDI gold images and logs
Big data analytics
Hybrid for general workloads
Capacity with mainstream application performance
Better performance with limited flash capacity
General workloads
Cost optimized HDD- based for lowest $/GB
Large capacity, lowest $/GB
When large datasets are required
Data that is not performance sensitive
Backup and archive
15K RPM HDDs
WI & RI SSDs
7K RPM HDDs
WI & RI SSDs
7K RPM HDDs

18. Compellent extends the economic value with a feature-rich storage platform
Optimal $/GB & $/IO
Lower TCO by balancing performance and capacity needs in a single platform
Tiering
Automatically move data between Flash tiers and HDD tiers
Scalability
Scale to meet storage requirements with either SSD or HDD  $
Replication
Replicate business critical data between disparate storage systems
Unified Storage Management
Manage multi tiered storage solution with a single pane of glass
Enterprise Class Support
Leverage best of breed enterprise class support 

19. Slash costs with more efficient use of every disk
Automated Tiered
Storage
Thin
Provisioning
Block-Level
Intelligence
Free Space
Recovery
Unified Block and File
Thin
Replication
Fast Track
Space efficient
snapshots
Compellent can reduce total storage software costs up to 96% and hardware costs up to 44% over a 10 year period.
No pre-allocation required with Thin provisioning
Cost-effective Disaster Recovery with Thin Replication
Buy fewer and less expensive drives with Automated tiered storage
Single solution for unified block and file

20. Dell EqualLogic

21. Dell EqualLogic PS6200S is All Flash. & PS6200XS is Hybrid Flash
PS-M4110 blade array
One streamlined data center
PS4100/4110
Entry-level
advanced functionality
PS6100/6110
Business-responsive
performance
PS6500/6510
Powerful, virtual. data-center ready
FS7600/7610
NAS unified storage
Ideal for general purpose small-medium consolidated loads
Converged storage servers and networking
Highly virtualized
Highly scalable
10GbE
Ease of management
Ideal for smaller SAN deployments
Remote office
Pay as you grow scalability
Designed for virtualization
10GbE capability
Ideal for VDI
deployments
Hybrid SAN
Highly virtualized
Scale capacity
& performance
10GbE capability
Self-optimized
performance
Options for intelligent tiering
Ideal for heavy sequential workloads
10GbE capability
2.5x bandwidth per array
Scales up to 2.3PB
Ideal for file & block environments
Flexible pool of scale-out file & block
Massive share capacities for flexibility
Single interface to manage file and block data
1GbE or 10GbE SAN and client networks
Includes file-level snapshots and replication

22. Automatic load balancing
EqualLogic SAN
Storage Pool
SSD
SAS or NL-SAS
Array 1
Array 2
Latency: 0.1s
Latency: 0.4s
Maximize performance by seamlessly assigning data across all available resources
Make the most of network ports and disk utilization
Automatically adjust to workloads as I/O changes
Dynamically detect and correct latency issues
Purchase storage for the predictable vs. peak workloads
Align hot and cold data within an array and across arrays (based on dynamic workloads)
Improve performance and minimize latency

23. Storage tiering and pooling
Application/Web Servers
Back-up Servers
Active Directory
Servers
File Servers
Exchange Servers
SQL
Servers
Domain
Servers
Switched
GbE Network
EQL
Backups
EqualLogic
EqualLogic
Shares
Backups
SQL
AD/Dem
Shares
Shares
Pool 1
Pool 2
Optimize storage and prioritize placement for maximum application performance and lowest cost
Dedicate pools for unique security, compliance or performance demands
Improve performance at the right price for heavy workloads (VDI, transaction database)
Automatically classify and match application data with the most appropriate storage
Tier between multiple generations of arrays
Combine tiered storage with service catalogues to simplify management and significantly lower overall storage costs

24. SAN Headquarters - Historical performance monitoring and automatic diagnostics and data gathering
Better plan and allocate resources by understanding usage over time
Monitor performance and optimize usage with real-time data
Improve performance by identifying and resolving bottlenecks before they occur
Monitor replication to reduce backup windows and enhance data protection
Save significant admin overhead by giving IT managers a single view of storage
Quickly and easily consolidate information on SAN performance into pre-defined, full-color reports

25. “We’re successfully mitigating boot storms as well as load storms when a lot of people are logging into their virtual desktops at once. You’d be surprised how many IOPS it takes to log in—it’s one of the major challenges with large-scale VDI.”
Luther Bowens, Systems and Operations Manager Indianapolis Public Schools
4x reduction in hardware costs with $2M savings every refresh cycle
$140,000 annual savings in support
10 sec or less for virtual desktops to load
Indianapolis Public Schools deployed Compellent with SSDs to optimize storage performance for VDI

26. What did you learn from this session today
What did you learn from this session today? Tweet your responses using the hashtag #dellst13

27. Thank You