1) The document discusses how all-flash data storage solutions like InfiniFlash can enable businesses to handle big data and digital transformations by providing extreme performance, massive capacity, and immediate access to information. 2) It presents several customer case studies where InfiniFlash helped companies like CompuGroup Medical and GleSYS improve performance, reduce costs, and gain competitive advantages. 3) The document argues that software-defined all-flash storage solutions like those provided by SanDisk can help businesses deploy applications and services that deliver new, improved digital experiences by leveraging the benefits of flash storage.

1. Is the World Ready for Big Data Flash?
Brian Allison
Director Data Center Solutions Marketing
SanDisk
Santa Clara, CA
August 2016 1

2. 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 to industry trends, technology trends,
and expectations for the advance of all-flash data center. Risks that may cause these forward-looking
statements to be inaccurate include among others: industry and technology trends may not evolve as
expected, the amount of data in the digital universe may not increase as expected, and more companies
may not consider all-flash data centers as expected; or the other risks detailed from time-to-time in SanDisk
Corporation’s and Western Digital Corporation’s Securities and Exchange Commission filings and reports,
including, but not limited to, their respective quarterly reports on Form 10-Q for the most recently completed
fiscal quarter.
This presentation contains statements from third parties. We undertake no obligation to update these
forward-looking statements, which speak only as of the date hereof or the date of issuance by a third party,
as applicable.
Forward-Looking Statements

3. Agenda
Business & Technology Trends
Software-defined All-Flash Storage
Real-world Customer Case Studies
Conclusion

4. Investing in Customer Success
© 2016 Western Digital Corporation All rights reserved

5. Business Trends
Beyond Data Customer Experience
and Impact
Predictable
Experience
Better
Decisions
Simplicity Information
on-Demand
BILLIONS
of people
MILLIONS
of Apps
CONNECTED ・ CLOUD ・ SOCIAL ・ BIG DATA
40,000 Exabytes Digital Universe in 2020

6. Technology Trends
CLOUD SCALE
GEO-DISTRIBUTED
SCALE-OUT
Consolidate-Expand-Consolidate
CLIENT/SERVER
VIRTUALIZATION
HYPER-CONVERGED
INFRASTRUCTUREMAINFRAME
DISAGGREGATED
STORAGE & COMPUTE
CLOUD
ARCHITECTURES
TRILLIONS
OF OBJECTS
BILLIONS
OF DEVICES
RETAIN
INFORMATION
LONGER
Expanding Beyond
the Data Center

7. Rack
Private Cloud
Ethernet Switch
SDS
SDS
Server
Server
Server
Server
iSCSI
SAN
SDS, converged, hyperconverged
solutions providing SAN/NAS functions
Containers
VMs
High performance
iSCSI = SAN
Perf
SDS = easily
deploy
Mostly SATA
Architectures Evolution
Rack
Server
Server
Server
SAN Fabric
SAN
SAN
Traditional SAN
Mostly SAS
HDD SAS
Flash
Typically ~30
attached
nodes
Fixed
workload
or heavy VM
load
SAN for easy management,
features large, reliable systems
Hyperscale/Cloud
Rack
Ethernet Switch
DAS
DAS
DAS
DAS
DAS
DAS
DAS
DAS
Cool = HDD
HDD Flash
Warm = SSD
SATA NVMe
Hot = PCIe
Flash
Flash SCM
Provide compute and
storage as a service

8. Software-Defined All-Flash Storage
Cohesive, differentiated strategy melding all enterprise software & hardware assets
Current AFA & HDD Array Market
 For Tier 0 through Tier N workloads
 Monolithic
 Proprietary storage OS, vendor lock-in
 Disk, hybrid, or all flash based
 Costly: $$$$$
Software-Defined AFA from SanDisk®
 For Tier 0 through “active” archival workloads
 Lower TCO vs traditional
 Rich choice of ecosystem partners—
software, compute, networking
 Also supporting Open Software Stacks
 Most cost efficient: $
SW defined
Server attached
flashmodel
In Server flash
model
Primary Storage
Appliances based
on InfiniFlash™ System
Application Acceleration
Appliances based on
PCIe Cards & Drives
Software-Defined

9. SanDisk Flash Memory
 Shared Flash Storage
 Flash in Server
FlashStart™
and FlashAssure™
 Installation and training services
 24/7, global onsite TSANet
Collaborative Solutions Support
 2 hr. parts delivery—750+ global
locations
Software-Defined All-Flash Storage
The Disaggregated Model for Scale
Best-in-class vendors—collaboration led by SanDisk®
SW Choice
Networking Choice
Compute ChoiceIBM
MAPR
QLOGIC
Mellanox
Technology
EMULEX
LSI LOGIC

10. InfiniFlash™ System and DataCore Software:
Expanding Business, Not Data Center Footprint, for eHealth
Source: https://www.sandisk.com/business/datacenter/resources/case-studies/compugroup-medical-grows-business-without-growing-the-data-center
CHALLENGE
As business grew, CompuGroup Medical needed the same low
latency and extreme performance as their Fusion ioMemory™
application accelerators, but were out of PCIe slots.
SOLUTION
 InfiniFlash System
 DataCore Software
RESULT
 20X improvement in data access speed
 3X power and cooling cost savings
 Data center space savings – 1 PB of storage in a 6U footprint
Case Study
 “Very large disks pose a
potential risk. I believe that
the all-flash data center will
become an option for most
companies over the next two
years, but not only because
the failure rate is so low.
Moreover, the cost for power
and cooling can be decreased
significantly. InfiniFlash is
something every company
should consider.”
—Thomas Schend,
Senior IT Systems Architect,
CompuGroup Medical

11. GleSYS Offers the Next Generation of Cloud Solutions with
NexentaStor from Nexenta and InfiniFlash™ System from SanDisk®
Source: https://www.sandisk.com/content/dam/sandisk-main/en_us/assets/resources/enterprise/case-studies/glesys-nexenta-infiniflash-cloud-case-study.pdf
Case Study
 “We have a business that is
running around the clock and
all our customers are probably
dependent on us for their
mission or their company.
If we don’t deliver they
won’t grow.”
—Andreas Bergman,
Internet Engineer,
GleSYS Internet Services AB
System without SanDisk System with SanDisk
Challenges
 Alleviate IOPS-related
performance issues
 Provide QoS without affecting
other customers
Benefits
 Three-year ROI
 9X improvement in server density
 2X increase in IOPS
 10X reduction in admin time

12. InfiniFlash™ System and Cloudera Enterprise:
Implementing Data Lake for Better Business Decisions
Source: https://www.sandisk.com/content/dam/sandisk-main/en_us/assets/resources/enterprise/case-studies/sandisk-big-data-group-deploys-infiniflash-cs.pdf
CHALLENGE
The MemTech Data Scientists needed high performance, massive
capacity, easily scalable storage for combined structured, unstructured,
and semi-structured data from disparate data silos across the
company.
SOLUTION
 InfiniFlash System IF500 256TB
 Cloudera Enterprise
RESULT
 Ability to store billions of rows of data in the data lake
 Sub-second performance
 50X cost reduction compared to traditional IT data solutions
Case Study
 “We picked InfiniFlash based on
requirements. We could have
selected any hardware we wanted.
InfiniFlash is very competitive with
respect to pricing, storage,
performance and analytics. When
you are extracting intelligence from
data you first need to combine
these data—structured,
unstructured, and semi-structured.
This is the use case for which we
have deployed InfiniFlash as a data
lake. This is the power of
InfiniFlash.”
—Janet George,
Fellow and Chief Data Scientist,
Memory Big Data, SanDisk

13. * Courtesy IDC
The Third Platform* in Action
• Consolidation from 24 to 5 storage systems
• Traditional apps -> traditional SAN
with minimal growth and no new apps
• New applications -> new hybrid Flash /
HDD tiered storage for UFOB across
6 replicated data centers
• InfiniFlash™ System as the tier-1 storage layer

14. Virtualization
WorkloadsStorageinfrastructure
DATABASE
APPLICATIONS
ANALYTICSHPC CLOUDMEDIA
Software-Defined All-Flash Storage
VMware/VDI
• Entry level: FlashSoft® + SanDisk
ION Accelerator/PCIe card
• Mid range: Nexenta + InfiniFlash
• High performance:
Tegile + InfiniFlash
Unified Block, Object, File
• CEPH on InfiniFlash (IF550)
for block/object
• Nexenta on InfiniFlash for File
Cloud Back Ends, File,
Print, Active Archive
• Nexenta + InfiniFlash™ for File
(NFS/CIFS/SMB) and Block
(iSCSI/FC)
Oracle, SQL Server, SAP
• Performance optimized up to
80TB block storage—SanDisk ION
Accelerator™ Classic
• Capacity optimized
block storage target
Shared Virtual Infrastructure
• Mid range: Nexenta + InfiniFlash
• High performance: Tegile + InfiniFlash
+ InfiniFlash

15. Enable a new generation
of services & applications
for an experience never
before thought possible!
Extreme Performance Massive Capacity Immediate Access to Information

16. ©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. CloudSpeed Ultra, FlashSoft, Fusion ioMemory, InfiniFlash and
SanDisk ION Accelerator 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).