1. The Best Storage Virtualization
Platform on the Planet that your
Competitors will die for
Hu Yoshida
VP and CTO Hitachi Data Systems
Sun Storage Academy – APAC
August 2007

2. The Dynamics of Storage Growth
• Storage growth rate is compounding
Capacity Growth Rate
• Regulations and disaster recovery
drive longer retention, with redundant
copies
• Transaction access rates growing
faster than capacity for operational
data
• Technology changes faster than
capitalization rate
• Utilization of storage is still fairly low -
30%
• Many companies are approaching the
knee of the growth curve
A refresh cycle follows 3 to 5 years behind

3. Who Took My Storage?
Lead Time Buffer
Stranded STORAGE
RAID Overhead
Copies 3 to N
ALLOCATED/Unused
Data

4. HW Costs Are Only Part of the TCO Iceberg…
Device Migration
Backup and Recovery The ratio of Management
to hardware costs are
Management 2:1 to 4:1 or more
Scheduled Down Time
Cost
Change Management
Environmental
Lead Time Buffer
As a result the Cost of IT
Stranded STORAGE
is not tracking to Revenue
Hardware
Costs Copies 3 to N
ALLOCATED/Unused
Data

5. Outdated Storage: 20 Year Old Architectures
• Expensive High Function Monolithic Storage
• Lower Cost, lower function, Modular Storage
• 20-year-old architectures that were designed for:
> Direct attached storage – No sharing
> Two Shift Operations – Maintenance widows
> GBs of Capacity – Easy to manage and migrate

6. Niche Storage Application Products Create Islands of
Storage
CAS
Nearline
RISS
AXIOM
NAS
InServ S800

7. What Happened to the Promise of SAN?
• SAN promised consolidation through the
elimination of islands of storage
• Ten Years later the utilization of storage is
still about 20% to 30%
What happened?
• SAN Networked servers to storage but left the
islands of storage
• Storage systems are not networked to work
together
• Storage systems are still provisioned
separately
• There is no data mobility between storage
systems

8. Control Unit Virtualization:
The key Enabler
• Only storage controller based NAS Mainframe CAS
virtualization: Apps VTL
> Provides common storage and
data services for all
heterogeneous storage and WAN
application requirements
> Adds no complexity or latency
> Is not limited to SAN
connection
> Preserves end-to-end security
> Enables seamless integration of
future capabilities
> Provides data mobility that is
transparent to the application

9. External Storage Virtualization Through
The ST9900 Control Unit
HOST
ELUN — LUN that is
HBA Port mapped to a LUN in an
external storage device
Target Port ELUN
Host View
Devices LUN LUN LUN LUN LUN LUN LUN
USP Storage
Controller
VDEV VDEV
LDEV LDEV
Internal LDEV
LDEV
LDEV
Devices LDEV
LDEV
External Port
Mapped Mapped
Target Port
USP Internal
Storage External Storage
Array
HDD LUN LUN
Group

10. Volume Migration in a ST9900/ST9985
• Volume Migration is done in the
controller cache
• Data that has not been moved yet
can be accessed from the S-Vol
cache image
• Information in the control store keeps
track of where the data resides.
• No impact to the SAN switches or to
the host
• Provides non-disruptive migration
between multi tiers of storage

11. Dynamic Provisioning Software
• Optimize Storage Capacity by
provisioning only what is used Servers
• Optimize Storage performance
by spreading the I/O across
more arms
HDP Volume
• Simplify Management by (Virtual LUN)
allocating what is asked for and
automatically provisioning only
what is used
• Simplify performance tuning by
HDP Pool
spreading the I/O across all the
disks in the Pool
LDEVLDEVLDEVLDEVLDEVLDEVLDEVLDEV
LDEVs
Array Groups/Disk Drives

12. Gartner – Thin Provisioning is Revolutionary
"Thin provisioning coupled with virtualized back-end disks
improves staff productivity by simplifying storage provisioning and
eliminating most tuning activities associated with solving
performance problems."

13. Different Approaches to Storage Virtualization
“SAN’s are the third leading cause of application
Mapping Mapping
failures, with an average outage of 25.5 Table
Table hours”
Disaster-Resource.com 2006

14. All Storage Controllers Do Virtualization Today
• Host servers talk to cache images of disks
in a storage controller - not to the actual
physical disk
• Storage Controllers create a Logical Unit
Number (LUN) from a Redundant Array of
Independent Disks (RAID)
• Controllers have years of proven data
mobility functions like snap copies, remote
replication, Copy on Write
• The storage control unit is the best platform
for virtualization of external storage
> Because it has all the information needed
to virtualize storage

15. Why Don’t Other Storage Vendors Do the Same?
No other Storage Controller has a Dynamic Cache Architecture
• Dynamic cache enables changing storage
configurations without disruption to
applications
• Virtual ports enable physical ports to
support thousands of host connections
• Host Storage Domains provides each virtual
port with it own address space for safe multi-
tenancy
• Logical Partitioning insures QoS for critical
applications by partitioning resources like
cache
• Switch architecture insures availability by
switching around failures and hot spots

16. The Evolution of Hitachi/SUN Storage Virtualization
1995
Global Cache with separation of
control and data
2000
Introduction of first scalable
crossbar switch architecture
2002
Introduction of Virtual Storage Ports
and Host Storage Domains with second generation
of crossbar switch architecture
2003
Introduction of Storage Area
Management and heterogeneous (external)
storage management
2003
Cross-System Copy is introduced to move data
between Lightning V and Thunder V without
host intervention
2004
ST9900 enables large-scale
virtualization of externally attached
storage behind third generation crossbar
switch architecture
2007
ST998v Increased performance and Dynamic Provisioning

17. Security Features
• Separation of Control and Data
– Administrators can not touch data
• Audit Logging
– Transaction format, NTP, SYSLOG
• Management Interfaces
– HTTP/SSL and server side certificates
– Roles based Access for admin, auditor, Account manager
– Anti Virus
• Data Protection Feature
– WORM capability with shredding Security is integrated in the
Architecture
• Privacy Feature Not bolted on
– Data Shredding with tiered storage movement
• Secure multi-tenancy
– Private Virtual Storage Machines- Logical partitioning
– Virtual Ports and Host Storage Domains
• FC-SP CHAP - End to End authentication
• Encryption with Appliances

18. Taking Back Your Storage
Virtualization and
Lead Time Buffer
Lead Time Buffer Dynamic migration
Stranded STORAGE Virtualization and
Stranded STORAGE logical partitioning RAID Overhead
Reduce RAID overhead
with RAID 5
Dynamic Provisioning Dynamically migrate
Copies 3 to N and lower cost tiers between RAID types
Dynamic Provisioning
RAID Overhead
ALLOCATED/Unused
Data
Data
Reduce cost with lower tiers

19. Operational Benefits of Hitachi Virtualization
and Dynamic Provisioning
Device Migration Non disruptive heterogeneous storage migration
Backup and Recovery VTL and de-duplication reduces B/R times,
Backup and Recovery multi-tier storage reduces costs, Backup Services Manager
Heterogeneous replication
Scheduled Down Time
Scheduled Down Time Non disruptive maintenance, migration, upgrades, provisioning
Change Management Common Heterogeneous management, non disruptive
Change Management
configuration changes, HSSM, HTnM, HTSM
Environmental Reduced storage and SAN footprint, power, cooling
Environmental
through consolidation

20. Hitachi Can Consolidate Different Storage
Requirements with a Common Services Platform
Content Tiered
Content Storage
Services Services
Services
File
Services
Nearline
CAS
RISS
Content NAS
Services
Virtual
Virtual Tape Thin Thin
Tape Services Provisioning Provisioning
Services Services Thin Services
Provisioning
Services
Tiered
Storage
VTL Services
AXIOM
File InServ S800
Services

21. The Storage Industry: The Future View
NAS Mainframe
SUN
ST9990v
ST9985
• A Virtual storage infrastructure to match dynamic business growth
• Consolidation of management through one common interface without
vendor lock-in
• Add storage as business requires without giving up functionality or
over buying
• Extend the life of current assets and enable easy technology upgrades
• Dynamically move data to the appropriate tier of storage as required.

22. Thank You
Hubert Yoshida
VP and CTO Hitachi Data Systems