The All-Flash Data Center was supposed to eliminate all storage problems and allow the application architecture to scale to new heights. The problem is data capacities are growing faster than the cost per GB of flash can decrease. Most data centers can’t afford to go all-flash, and in most cases, since the bulk of data sits idle, it makes no sense to go all-flash. It is just more practical and cost-effective to design an architecture that leverages several storage systems to meet all the needs of the data center and to do so cost-effectively. Join experts from Storage Switzerland and Western Digital as we discuss the All-Flash Fix, How to Create a Hybrid Storage Architecture. In this webinar you’ll learn how to create an architecture that meets the need to deliver high performance, protect the organization from disaster and meet the organization’s long-term data retention and privacy needs. Register now to get a copy of our latest white paper “Creating a High Performing but Cost Effective All-Flash Strategy” available exclusively to webinar registrants.

1. The All-Flash Fix -
How to Create a Hybrid Storage Architecture
Deliver high performance,
protect from disaster and meet
data retention goals
For audio playback and Q&A go to: bit.ly/AllFlashFix

2. OurSpeakers
Clay Ryder,
Sr. Product Marketing
Manager at Tegile
George Crump,
Founder and Lead Analyst
of Storage Switzerland

3. We All Love Flash
But Should You Go ALL-Flash?

4. Hard Truths
● At least 80% of data hasn’t been
accessed in 3 years
● 95% of data hasn’t been accessed
in the last 90 days
● Flash, despite price decreases,
costs more than HDD
● Object Storage is better suited for
long term data retention

5. Hard Reality
● Organizations, generally, don’t
manage data
○ It stays forever on primary storage
● Backup is used for archive
○ Data granularity and visibility are
sacrificed
● Assumption is that data management
is hard

6. Old Assumptions
● Data loses value at it ages
● Tape is the target for data
retention
● Automation is either non-
existent or buggy

7. New Data Lifecycle Changes Everything
● Database and Virtual Machine data remains active
○ Must be on flash indefinitely
● Unstructured data becomes dormant quickly
○ Should start on flash move to secondary storage
● IoT, Sensor Data
○ Should stream to secondary move to flash for analysis

8. Creating a Hybrid
(HDD and Flash)
Architecture
● All-Flash for active data
● HDD for secondary/copy
data
● Object Storage for long term
retention

9. The Problem with Hybrid Architectures
● Too many tiers
● Too focused on moving data
down the stack
● Too much data movement
across network
● Lack of automation where
needed most (near-active data)

10. A Hybrid IT Architecture That Makes Sense
● Unified Primary and Secondary Storage
(Hybrid Flash)
○ Data movement is automatic and internal
(no network)
○ This is the tier where most recalls will
occur
● Object Storage for data retention and IoT
on-boarding
○ Provides data durability and governance
○ Movement to unified primary can be
manual or automated

11. 10
IntelliFlash™ and
ActiveScale™
Making Your Data Come Alive
Clay Ryder
Sr. Manager, Product Marketing
©2018 Western Digital Corporation or its affiliates. All rights reserved.

12. This presentation contains forward-looking statements that involve risks and uncertainties, including, but not limited to, statements regarding
our product and technology positioning, the anticipated benefits of the integration of HGST and SanDisk into our company, market trends,
business strategy and growth opportunities. Forward-looking statements should not be read as a guarantee of future performance or results,
and will not necessarily be accurate indications of the times at, or by, which such performance or results will be achieved, if at all. Forward-
looking statements are subject to risks and uncertainties that could cause actual performance or results to differ materially from those
expressed in or suggested by the forward-looking statements.
Additional key risks and uncertainties include the impact of continued uncertainty and volatility in global economic conditions; actions by
competitors; difficulties associated with the integration of SanDisk and HGST into our company; business conditions; growth in our markets;
and pricing trends and fluctuations in average selling prices. More information about the other risks and uncertainties that could affect our
business are listed in our filings with the Securities and Exchange Commission (the “SEC”) and available on the SEC’s website at www.sec.gov,
including our most recently filed periodic report, to which your attention is directed. We do not undertake any obligation to publicly update or
revise any forward-looking statement, whether as a result of new information, future developments or otherwise, except as otherwise required
by law.
[This presentation contains financial measures defined as non-GAAP. The non-GAAP measures are used by the company’s management to
forecast, evaluate and review the financial results of the company. Management believes these non-GAAP financial measures are useful
because they provide meaningful comparisons to prior periods and exclude certain items that may not be indicative of the underlying
performance of the company’s business. These non-GAAP financial measures should be used in addition to, and in conjunction with, results
presented in accordance with GAAP to better understand the company’s financial performance. Non-GAAP measures are not in accordance with,
or an alternative for, measures prepared in accordance with GAAP and may be different from non-GAAP measures used by other companies.]
Forward-Looking Statements
Safe Harbor | Disclaimers
7/25/18©2018 Western Digital Corporation or its affiliates. All rights reserved.

13. Western Digital
• Company in a strong strategic position to lead
global evolution of storage industry
– $26B market capitalization, $19B FY2017 revenue
– Consistent profitable performance, strong free cash
flow
• Broad storage portfolio of storage solutions—
storage systems, SSDs, HDDs, SSDs,
embedded and removable flash memory
• 14,000+ active patents worldwide
• Vertically integrated business model to
maximize operational efficiency
A global data technology leader
©2018 Western Digital Corporation or its affiliates. All rights reserved. 7/25/18

14. Expansive Portfolio Of Platforms and Systems
Spanning Primary, Secondary, and Cloud Storage Applications
Platform Cloud Secondary Primary
IntelliFlashActiveScaleOEM-Branded
Density Performance ManageabilityDurabilityCapacity Integrity
Unified Block/File Storage
NVMe, All-Flash, and Hybrid
Fast Data
Object Storage
Geo-Distributed
Big Data
Flash and HDD Platform
& Integration Services
7/25/18©2018 Western Digital Corporation or its affiliates. All rights reserved.

15. IntelliFlash™ Storage Platform
7/25/18©2018 Western Digital Corporation or its affiliates. All rights reserved.
NVMe, ALL-FLASH, HYBRID FLASH
One software, many configurations
PREDICTIVE CLOUD ANALYTICS
Cloud monitoring, predication and remediation
UNIFIED STORAGE
Native block and file, primary and secondary
MULTI-SITE DISASTER RECOVERY
Asynchronous, GEO replication
SUPERIOR DATA REDUCTION
Inline compression and deduplication
END-TO-END DATA PROTECTION
Inline data encryption, instant snapshots, clones
MASSIVE SCALE
Petabyte scale

16. ONE Flash Platform, ANY Workload
WAREHOUSING ANALYTICS OLTP
Low Latency Business-Critical Apps
TEST/DEV MESSAGING COLLABORATION
Consolidated, Virtualized Workloads
ONE Operating System | ONE Feature Set | ONE User Experience
Hybrid Hybrid Flash All-Flash NVMe
10% Flash 30% Flash 50% Flash 100% Flash NVMe Flash
Balanced Performance Extreme Performance
Capacity Media (HDD, MLC, TLC) Performance Media (SCM, NVMe, eMLC)
7/25/18

17. Run Every Workload @ the Speed of Memory
Performance
Tier
Capacity
Tier
▪ Get the affordable capacity you
need for your business-critical
applications
▪ Get the high IOPS and low latency
you need for your top-tier
applications
NVDIMM
Flash
Memory
Dense
Flash or
HDD
100s of Microsecond
Response Times
10x-20x FASTER
THAN LEGACY STORAGE
7/25/18©2018 Western Digital Corporation or its affiliates. All rights reserved.

18. ActiveScale™ Product Portfolio
Data Forever Architecture
©2018 Western Digital Corporation or its affiliates. All rights reserved. 7/25/18
Data Forever
Architecture
Versioning Vertical
Integration
Encryption S3 Compatible
Software
Multi-Geo
Availability
Zones
Metadata
Acceleration
SINGLE OPERATING ENVIRONMENT
SCALE-OUT OBJECT STORAGE
Scale-up and
Scale-out
Capacity Performance
Data Lakes for
Analytics
Archive and
Backup
ActiveScale P100 ActiveScale X100

19. Facilitating Data Forever
ActiveScale
Dynamic Data Placement
No pre-assigned locations
✓ No data rebalancing when scaling capacity up and/or out
✓ Assimilate new generations of technology – no data left
behind
▪ e.g. Higher density HDDs, Faster storage servers
✓ Protects data two ways for long-term preservation
▪ High durability – advanced erasure coding – BitSpread®
▪ Data integrity – background integrity checks – BitDynamics™
✓ Versioning: Store and recover every version of every object
✓ Simplified management & analytics @ petabyte scale
Dynamically place data across the
entire ActiveScale infrastructure

20. Simplifying the Storage Environment
• Unified (block/file)
storage for primary and
secondary workloads
• High performance at
high capacity
• Cost-effective multi-tier
media support (SSD/HDD)
• Data Management and
Predicative Data
Protection
• Object-based storage
repository for secondary
workloads at cloud-scale
• Performance optimized
• Remarkable data integrity
• Incredible data durability
• Simplified management
with cloud-based system
analytics
©2018 Western Digital Corporation or its affiliates. All rights reserved.
IntelliFlash ActiveScale
Making Your Data Come Alive Facilitating Data Forever

21. Thank you!
Storage Switzerland
http://www.storageswiss.com
georgeacrump@storageswiss.com
StorageSwiss on Twitter:
http://twitter.com/storageswiss
StorageSwiss on YouTube:
http://www.youtube.com/user/storageswiss
IntelliFlash
tegile.com/intelliflash
twitter.com/tegile
facebook.com/tegilestorage/
ActiveScale
http://www.hgst.com/products/systems
twitter.com/WesternDigiDC
facebook.com/WesternDigitalCorporation/

22. The All-Flash Fix -
How to Create a Hybrid Storage Architecture
For complete audio and Q&A please register for the On Demand Version:
http://bit.ly/AllFlashFix