This document contains a presentation by Rob Callaghan on flash storage solutions from SanDisk. It includes forward-looking statements, Rob's bio, information on closing the performance gap between storage and memory, and case studies on how various organizations have benefited from SanDisk's flash storage products including improved performance, reduced costs, and better support for critical workloads.

1. SanDisk Confidential 1
Flash Stories:
Making Smarter Decisions
Faster
Sr. Mgr. Marketing, Data Center
Solutions
January 2016
Rob Callaghan

2. SanDisk Confidential 2
Forward Looking Statements
During our meeting today, we may make forward-looking statements.
Any statement that refers to expectations, projections or other characterizations of future
events or circumstances is a forward-looking statement, including those relating industry
trends, new products and their anticipated availability, capacities, pricing, capabilities,
performance and compatibility and benefits to customers. Actual results may differ
materially from those expressed in these forward-looking statements due to factors detailed
under the caption “Risk Factors” and elsewhere in the documents we file from time to time
with the SEC, including our annual and quarterly reports. We undertake no obligation to
update these forward-looking statements, which speak only as of the date hereof.

3. SanDisk Confidential 3
Rob Callaghan, Product Marketing, SanDisk® Data Center Solutions
Bio
 Over 20 years of experience in enterprise storage product
marketing.
 Managed product marketing in the Datacenter Solutions Group at
LSI Corporation, Quantum Corporation, Nortel, 3COM and Adaptec.
 Involved with SNIA in the Solid State Storage Initiative.
 Former Chair for the SNIA Storage Management Forum.
 Bachelor’s degree in Business Information Systems from California
State University East Bay and an MBA from Santa Clara University.
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4. SanDisk Confidential 4
Closing the I/O Performance Gap
T1 Storage
T2 Storage
Near Line
Processor
L1 Cache
L2 Cache
Main Memory
1 ns
10 ns
100 ns
10,000,000ns (10 ms)
20,000,000ns (20 ms)
>20,000,000ns (>20 ms)
Latency Penalty for leaving
memory hierarchy100,000x
Memory / Storage Gap (Enterprise)
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5. SanDisk Confidential 5
The Challenge: Closing the I/O Performance Gap
T1 Storage
T2 Storage
Near Line
Processor
L1 Cache
L2 Cache
Main Memory
1 ns
10 ns
100 ns
10,000,000ns (10 ms)
20,000,000ns (20 ms)
>20,000,000ns (>20 ms)
Latency Penalty for leaving
memory hierarchy100,000x
Memory / Storage Gap (Enterprise)
Fusion ioMemory™ 15,000 nanoseconds
More than 667 times faster
than HDD Storage
5

6. SanDisk Confidential 6
CASE STUDY
Santos
Finding Needed Energy for Southeast Asia Markets
CHALLENGE
The IT team needed to determine how to have multiple servers share
one storage repository, which would be as local and as fast as possible.
SOLUTION
Two 6.4TB Fusion ioMemory™ SX300 PCIe application accelerators
R E S U L T
 Server footprint reduced 3:1
 Latency on the server has all but disappeared
We tried other vendors’ products
on the back end and threw huge
amounts of RAM at the servers to
try to cache up the database as
much as possible and accelerate the
assets, rather than move them to
separate storage. We had some
small wins along the way, but the
move to the Fusion ioMemory™
cards has been a complete game-
changer.”
Darren Stanton
Server Platform Team Leader

7. SanDisk Confidential 7
CASE STUDY
Skills Inc.
Providing Aerospace Services with the Help of Dell and SanDisk® DAS Cache
CHALLENGE
Key reporting and analysis functions were being compromised due to
the slow performance of the ERP system
SOLUTION
 Fusion ioMemory™ drive
 SanDisk® DAS Cache
 Dell™ PowerEdge™ R730xd server
RESULT
 75% improvement in report processing time
 Reduced points of failure
With SanDisk DAS Cache, I don’t
have to think about it. I just turn it
on and it works. It provides the
performance I need and that’s
worth a lot to me.”
Ed Hammond
Senior Systems Administrator

8. SanDisk Confidential 8
CASE STUDY
Northern Arizona University:
SanDisk® + Nexenta : Elevating Academic Success
CHALLENGE
Poor system performance in the student labs across NAU’s 13 state-
wide campuses was affecting student productivity and academic
progress.
SOLUTION
 Optimus Ultra™ SAS SSD from SanDisk
 NexentaStor™ from Nexenta
RESULT
 20 to 1 reduction in storage requirements
 10X improvement in IOPS
 10X reduction in latency
 Eliminated user complaints
Originally, we had a lot of
performance complaints
throughout the semester, and they
could happen at any time. Once we
implemented our new
Nexenta/SanDisk solution, we
basically went down to zero
complaints on performance.”
Duane Booher
Senior Software Systems Engineer

9. SanDisk Confidential 9
CASE STUDY
Ehime University Hospital:
Hospital Carves Out New Possibilities Through High-speed, Reliable Next-
Generation Storage
CHALLENGE
As Ehime University Hospital digitizes medical records, the organization
anticipates data volumes to soar to 300TB or more. Both data storage
and data search requirements must be accommodated.
SOLUTION
 Fusion ioMemory ioDrive2
R E S U L T
 60X improvement in query processing
 High availability
 Low bit error rate
The system has to return more than
six results in one second. Deploying
the Fusion ioMemory ioDrive2
enabled this processing, which had
been difficult with the previous
system.”
Dr. Eizen Kimura
Deputy Director Department of Medical
Informatics

10. SanDisk Confidential 10
CASE STUDY
ScaleMatrix:
Providing White Glove Cloud Era Service with SanDisk and Nexenta
CHALLENGE
As ScaleMatrix doubles in size annually, the team requires a solution
that provides low-latency, highly scalable storage with proven data
protection.
SOLUTION
 Optimus Eco™ 400GB SSD
 CloudSpeed Ultra™ 800GB SSD
 NexentaStor™ from Nexenta
R E S U L T
 White glove service to Data Center 2.0 customers
 100% access; 100% responsiveness all the time
 End user clients get more work done
In our industry we’re competing
with giants. How do you compete
with giants? By providing better
service, better support, better
availability, and better data
integrity.”
Roy Bettle
Vice President of Technology

11. SanDisk Confidential 11
CASE STUDY
PlentyOfFish:
A Perfect Match for Engineering Love
CHALLENGE
PlentyOfFish servers 100 million users, many for free. Therefore, the
company needed a cost-effective solution to address data consistency,
latency, and performance when it became apparent that HDDs could
not keep up.
SOLUTION
 Fusion ioMemory SX300 PCIe application accelerators
R E S U L T
 Low latency; high performance
 4x improvement in compute power over hard disk drives
 Cost containment
 Reliability and ease of use
When we used traditional hard
disk drives in our environment, we
were often hours behind. Now that
we have moved to Fusion
ioMemory™ SX300 PCIe cards, it’s
real time. We are also seeing a 4x
increase in workload processing on
our servers which allows us to get a
lot more out of our computers.”
Owen Morley
Director of Infrastructure

12. SanDisk Confidential 12
CASE STUDY
Mercator Biologic:
Accelerating Genetic Assembly with SanDisk ION Accelerator™
CHALLENGE
Mercator BioLogic needed a high performance storage solution to turn
their innovative approach to genetic code assembly into reality. The
company teamed up with SanDisk to deploy a 4-node Oracle RAC
cluster that used 25TB of Fusion ioMemory™ application accelerators
with SanDisk ION Accelerator software.
SOLUTION
 Fusion ioMemory SX350 6.4TB PCIe application accelerators
 SanDisk ION Accelerator™ software
R E S U L T
 Reduced genetic code assembly time from 37 days to 84 minutes
 Maintained the highest level of accuracy
“While researching methods to
improve our performance, we read
a benchmark study for I/O
processing using SanDisk ION
Accelerator software. We have
been impressed with the
performance gains realized with
this data acceleration. This system
has proven to give more than three
times the performance of any other
system we’ve seen.”
Roger Arvisais
Founding Partner

13. SanDisk Confidential 13
Rackspace ObjectRocket and SanDisk
Accelerate MongoDB
“Every aspect of our stack has been tuned to make MongoDB fast, which is why we only
use the fastest storage like PCIe flash accelerators in our platform…”
“We rely on the superior performance of Fusion ioMemory™ PCIe application accelerators
so that our customers get more transactions per second and more consistent
performance without the typical penalty of a shared cloud environment.”
Chris Lalonde
Chief Executive and Co-founder,
ObjectRocket

14. SanDisk Confidential 14
Accelerating Oracle Transactional Databases with
SanDisk Flash Storage
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15. SanDisk Confidential 15
Go to Market - from Creation to Solutions
SanDisk Partners and Vendors End Users
Cloud
Large Enterprise
Hyperscale

16. SanDisk Confidential 16
Fusion ioMemory™ Application Accelerators
• Database
• Virtualization
• VDI
• Analytics
• Web hosting
• Seismic data processing
• Content caching
• 3D Animation
• CAD/CAM
Provides a cost-efficient solution for I/O intensive workloads
Databases Virtualized
Servers
Virtual Desktop
Infrastructure
Big Data
Analytics

17. SanDisk Confidential 17
Source: 2014 SanDisk Fusion Customer Survey
Key Customer Findings
Revenue
 More customers and transactions
supported
 Access actionable data faster
Cost
 Consolidate infrastructure
 Higher employee productivity
 Leverage SAN Investment
Quality
 Meet SLAs
 Service customers more quickly
Business BenefitsPerformance Improvements
>10x
6-9x
3-5x
1-2x
29%
23%
32%
14%
Levels of
performance
improvement
reported by
Fusion
Customers

18. SanDisk Confidential 18
Cost Capacity
VSL
FlashSoft® Software
SanDisk ION
Accelerator TM
Reference Arch.
(Bandwidth, IOPS, Latency)
SanDisk Application Acceleration Optimized
Performance
Fusion ioMemory™
Fusion ioMemory™
Optimus and Lightning SAS SSD’s
CloudSpeed Gen. II SATA SSD’s

19. SanDisk Confidential 19
NEW Fusion ioMemory™ Mezzanine PCIe Application Accelerators
Provide ultra-low latency for real-time data access
• Designed for I/O intensive enterprise applications
• These Mezzanine Cards sit close to the CPU and accelerate
applications for high performance
• More VMs per server
• Fast database/data mining
• Fast business intelligence
• Fusion ioMemory Mezzanine cards
• Ultra-low latency
• High IOPS
• Zero Footprint

20. SanDisk Confidential 20
Fusion ioMemory™ PCIe Product Family
7,000
Customers &
250,000
Installs
8 Years
Pioneer of
PCIe Flash
Storage
Broadest
Portfolio
PCIe to
Mezzanine
Fusion ioMemory™
Trusted & Proven
• Multiple Generations
of Servers
• Multiple OEMS
• New HW bundles
with FlashSoft
• 1.0TB–6.4TB Capacity
Range
20

21. SanDisk Confidential 21
A Global Fortune 500 Leader in Flash Storage Solutions
Personal Smartphones & Tablets Client SSDs Data Center SSDs, Systems & Software
* Financials as of Q2’15. Net Cash = (Cash + cash equivalents + short-term and long-term marketable securities) less (debt at
maturity value) as of end of Q2’15; patents are as of Q2 2015.
Vertically Integrated
• Fab – Memory Production
• Memory System Design
• Full Product
Manufacturing
• Software Solutions
Patent Portfolio
• 5,000+ Patents
Financial Strength
Trailing 4 Quarter Financials*
• $6.1B Revenue
• $1.5B Net Cash
• $0.9B R&D Investment
SanDisk Ventures
• $75 Million for
Strategic Investments
Customers, Channels
• OEM
• Enterprise
• Hyperscalers
• Retail, Consumers

22. SanDisk Confidential 22
Solution Building Blocks for the Data Center…
 Application Intelligence & Performance
 Breakthrough Economics @ Scale
 Immediate Access to Information
for an Experience Never Before Thought Possible!
12

23. © 2016 Western Digital Corporation or its affiliates. All rights reserved. SanDisk and the SanDisk logo are trademarks of Western Digital Corporation or its
affiliates, registered in the U.S. and other countries. InfiniFlash, CloudSpeed, and Fusion ioMemory are trademarks of Western Digital Corporation or its
affiliates. Other brand names mentioned herein are for identification purposes only and may be the trademark(s) of their respective holder(s).
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