Vijay Karamcheti, CTO of HGST’s SSD, Software and Solutions Group, shares a little bit of the HGST story and how our technologies span the spectrum of data center needs from the hottest to the coldest of storage.

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Spanning Hot and Cold Data: Enabling Key Storage Technologies
for the Data Center
Dr. Vijay Karamcheti - CTO, SSD, Software and Solutions

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2© Copyright 2014 EMC Corporation. All rights reserved.
Forward Looking Statement
This presentation contains forward-looking statements that involve risks and uncertainties, including, but not limited to, the development and adoption of a
new storage architecture and the potential introduction of products based on this architecture. 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,
business conditions and growth in the various hard drive segments. 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
Quarterly Report on Form 10-Q filed with the SEC on May 5, 2014, 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 by the SEC. We believe that certain non-GAAP financial measures, when presented in
conjunction with comparable GAAP (Generally Accepted Accounting Principles) measures, are useful because that information is an appropriate measure for
evaluating our operating performance. Non-GAAP information is used to evaluate business performance and management's effectiveness. These measures
should be considered in addition to, not as a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. Non-GAAP
financial measures may not be calculated in the same manner by all companies and therefore may not be comparable.

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Agenda
• Meet HGST
• Aligned With EMC’s Vision
• HGST Product Families
• Continuing The Innovation
• Why Choose HGST

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HGST Subsidiary Profile
 Founded in 2003 through the combination of the hard drive
businesses of IBM, the inventor of the hard drive, and
Hitachi, Ltd (“Hitachi”)
 More than 4,200 active worldwide patents
 Acquired by Western Digital in 2012
 Headquartered in San Jose, California
 HGST develops, manufactures and markets hard drives,
SSDs and storage sub-systems for consumers, OEMs and
datacenters
 Over $1B in acquisitions in 2013 addressing HOT data

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Lincoln, Massachusetts
SSD Product Development
Rochester, Minnesota
HDD & SSD Product Development;
System Integration Test
Boulder, Colorado
HDD Product & New Business Development
San Jose, California
Yerba Buena:
Branded Product Development
Great Oaks:
HDD & SSD Product Development;
Head & Media Development;
Quality & Reliability
Technology Drive:
SSDs and Software
Irvine, California
HDD & SSD Product Development
Shenzhen, China
Media / HGA / HDD
Odawara, Japan
Research & HDD, Head &
Media Development;
Fujisawa, Japan
HDD Development;,
Engineering Support
Sales & Marketing Offices throughout the world
Santa Ana, California
SSD Research & Development
San Diego, California
SSD Research & Development
Austin, Texas
SSD Research & Development
Penang, Malaysia
SSD Research & Development
Pune India
ISSD Research & Development
 Designates recent addition from sTec & Virident acquisitions
Berkshire, United Kingdom
SSD Research & Development
Hsinchu City, Taiwan
SSD Research & Development
Laguna, Philippines
Slider
Sarawak, Malaysia
Substrate
Singapore
HDD
Prachinburi, Thailand
HDD
HGST Global Locations
Bangalore, India
ISSD SW Development

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Capacity Enterprise
Performance Enterprise
Market Leadership
Cloud & Datacenter Mobile External Storage
Enterprise SSD
PCIe & SAS
Computing Creative Professional
Consumer
Touro™
G-Technology®
7200 RPM &
CoolSpin
HDDs
Consumer Electronics
5400 & 7200 RPM
HDDs
9.5mm
7mm
9.5mm 7mm
5400 & 7200 RPM HDDs
Automotive & Industrial
4200 RPM
HDDs
9.5mm
Ultrastar®
Ultrastar® &
MegaScale DC® Endurastar®
CinemaStar®
Travelstar®
10K & 15K
HDDs
FlashMAX®

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Heritage of Innovation and Industry Firsts
1950 2000 Today
1979
Thin Film
Heads
1991
MR
Heads
1997
GMR Heads
2000
National Medal
of Technology
2001
AFC Media
2007
First 1TB
HDD
2013
10-nanometer
Patterned-Bit
Milestone
1973
Winchester Disk
IBM 3340 – father
of the modern HDD
1978
First disk array
subsystem patent
1962
Hydrodynamic
Air Bearing
Sliders
1990
PRML
Channel
1997
Ramp Load/Unload
1994
First 3.5”
Enterprise
HDD with
1M hr MTBF
1999
1” Microdrive
2006
2.5” PMR HDD
for high-volume
OEMs
2004
First 5-platter
3.5”design
2011
First 7200 RPM
Enterprise
HDD with 2M
hr MTBF
2010
First 7200 RPM
7mm 2.5” HDD
1956 –
RAMAC
Invented First
Hard Drive
1956 –
RAMAC
Invented First
Hard Drive
1979
Thin Film
Heads
1991
MR
Heads
1997
GMR Heads
2012
Helium
Technology
1994
First 3.5”
Enterprise
HDD with
1M hr MTBF
2008
Intel
SATA
SSD JV

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5,344+
active in the U.S.
6,000+
active worldwide
400+
U.S. patents received annually
WDC HOLDS MORE U.S. PATENTS FOR HDD TECHNOLOGY
THAN ANY OTHER COMPANY AND A BROAD BASE OF SSD PATENTS
WDC
5344
0
1000
2000
3000
4000
5000
6000
2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Active U.S. Patents
by year
HGST

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Deep Technology Integration
SOLID STATE DRIVE
• Close NAND Vendor relationships
• Proprietary “CellCare” ECC
• Custom Controllers
• In-house manufacturing
• Device ‘intimate’ software
Legendary HGST Quality & Reliability
HARD DISK DRIVE
• Vertical Integration of R&D
• Vertical Integration of Manufacturing
• Patented heads, assemblies, enclosures
• Helium devices, Cool Spin technology
• Range of products from hot to cold

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Next Generation Data Center Pain Points
• Equipment Acquisition Costs
• Server and Storage Density
• Power Consumption
• Cooling Costs
• Cost Efficient Bulk Storage Solutions
• Efficient cooling for ultra-high density server
racks and modular datacenters
• Drives need for intelligent data placement
HOT WARM COLD

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SAS SSDsPCIe SSDs
My SQL, NoSQL
Oracle RAC
Performance
Content Serving
Cloud Gaming
Capacity
Cloud Storage
Long-Tail Content
Capacity Scale
Video on Demand
Surveillance
Cold Storage
Archives
Medical Records
HOT WARM COLD
Enabling The Next Generation Data Center
Big Data Analytics
VMware & VSAN
Innovative Storage Solutions That Span the Spectrum From Hot to Cold

12. 12© 2014 HGST, INC. ALL RIGHTS RESERVED.
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SAS SSDsPCIe SSDs
My SQL, NoSQL
Oracle RAC
Performance
Content Serving
Cloud Gaming
Capacity
Cloud Storage
Long-Tail Content
Capacity Scale
Video on Demand
Surveillance
Cold Storage
Archives
Medical Records
HOT WARM COLD
Proud Partner of EMC
Big Data Analytics
VMware & VSAN
VMAX VNX IsilonXIO Atmos DataDomain
XtremSW
XtremSF

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Ultrastar® He6
$$

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~23%
Mechanical
Power
Savings
Air – 5 Disk
Air
O
N
O
N
Disk Rotation Helium
Reduced
Flutter
Thinner Platters
Less Motor
Drag
Disk Flutter
&
Vibration
Disk Rotation
O
N Nitrogen
Oxygen
Helium
4◦C cooler operation
49% reduction in watts/TB
Helium – 7 Disk
HelioSeal Addresses:
Track Mis-RegistrationUltrastar® He6

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Continuing The Innovation
HOT WARM COLD
Software for
the HOT data
On Ramp
Deep
understanding
of next
generation
workloads
Cold storage
research &
development

21. 21© 2014 HGST, INC. ALL RIGHTS RESERVED.
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c
DataAccess
Age of Data
Typically for large datastores
where access patterns change
over time
HDDs spun-down
opportunistically
“Cooling” / Long Tail
c
DataAccess
Age of Data
Typically for analytics,
compliance and audit
“When data is more readily
accessible, it’s value increases”
HDDs rarely spun-down
High Value Historical
Data
c
DataAccess
Age of Data
Typically for Write-once, Read
occasional data
HDDs mostly spun-down
Access time is “minutes”
“Last Resort” Copies
Cold Storage Has Many Use Cases & Access Patterns

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2012 2013 2014 2015
New Innovation & Solutions
Required to Further Narrow the Gap
Standard HDD are Reaching Scaling Limits
Relative$/TB
HDD Evolution Alone Can’t Provide a Sustainable Solution
Cost Extraction Alone is Insufficient
The Cold Storage Gap
Time

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Filling the Gap
Primary Storage Deep ArchiveActive Archive
Capacity 100’s PB100’s TB – 10’s PB 1,000’s PB
Storage Device HDDSSD / HDD Tape / Optical
Typical Workload Random + SequentialRandom Sequential
Access Pattern Write Once, Read ?Create, Modify Write Once, Read Seldom
Access Time seconds-minutesmsecs minutes
Value Prop $/GB, Density$/IOPS $/GB, Power

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SSD-Optimized Performance Software
Software fully unlocks the performance potential of solid-state storage at the
system and application level
SAN/NAS-Attached
Hybrid Storage System
Application
Servers
SSDs
All-Flash Array
HDDs
SSDs
Application
Servers
SAN/NAS-Attached
Storage System
HDDs
Accelerated
Application Servers
(SSD Cache / Tier)
SSDs
SSDs
Application Servers w/
Direct-Attached Performance Storage
SSDs
SSDs
SSDs
SSDs
SW
SW
SW
SW
SW
SW
SW
SW
OEMs
ISVs
OEMs
ISVs

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‘Device-Intimate’ SSD Software
HGST’s approach includes ‘device-intimate’ SSD software
Proprietary interface today,
standard interface with proprietary
extensions in the future
HGST ‘Device-Intimate’
SSD Software
Applications
HGST SSD Device
HGST’s ‘device-intimate’
solution delivers:
• Sharing
• Replication
• Caching
• Better performance
• Higher endurance
Proprietary/ Standard
Drivers

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Device
Manager
ServerCache
Application
Acceleration
Single Sever
vHA
Synchronous
Replication
Fail-Over
vShare
Shared Flash
Oracle RAC
Profiler
Capacity
Planning
Optimize Flash
Usage
ClusterCache
Firmware Update
Monitor
Manage
Clustered Server
Caching
Oracle RAC
SAN Enhancement
vHA
ShareCache
Software Innovation for Hot Data On-Ramps
Our software addresses the creation of “Server-SANs” for scale-out and scale up

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“6x server consolidation on MySQL”
“10x latency reduction on Oracle Single Instance”
“46X faster report generation on MS SQL”
“10X Latency Reduction for Exchange”
“7X Increase in VDI Instances”
Deep understanding of next generation workloads
HOT WARM COLD

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Why Choose HGST?
 Heritage of innovation
 Spectrum of technology
 Broad portfolio
 Quality/reliability
 Global presence
 Vertical integration
 Proud EMC Partner
To learn more, visit us at Booth 218
HOT WARM COLD

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Capacity & Trademark Statements
One gigabyte (GB) is equal to one billion bytes, one terabyte (TB) equals 1,000GB (one trillion bytes), and one petabyte (PB) equals
1,000TB (one quadrillion bytes) when referring to hard drive or solid state drive capacity. Accessible capacity will vary from the stated
capacity due to formatting and partitioning of the drive, the computer’s operating system, and other factors.
Ultrastar, MegaScale, HelioSeal, 7Stac, Virident, and FlashMAX are trademarks or registered trademarks of HGST, Inc.
HGST trademarks are intended and authorized for use only in countries and jurisdictions in which HGST has obtained the rights to use,
market and advertise the brand. HGST shall not be liable to third parties for unauthorized use of this document or unauthorized use of its
trademarks.
All other company names, products or trademarks used in this presentation are the marks of their respective owners, and not HGST.
This information is presented as of May 7, 2014, and HGST does not undertake any obligation to update any of the information provided.