Hitachi Data Systems Rated “Strong Positive” in Leading Industry Analyst Firm’s MarketScope for High-End Enterprise Disk Arrays 2008 Report

SANTA CLARA, Calif. — Hitachi Data Systems, a wholly owned subsidiary of Hitachi, Ltd. (NYSE:HIT) and the only provider of Services Oriented Storage Solutions, today announced top analyst firm Gartner, Inc. has rated Hitachi Data Systems a “Strong Positive” in the “MarketScope for High-End Enterprise Disk Arrays” report, which is the highest possible rating in the MarketScope. According to the report, Gartner advises current customers of vendors with “Strong Positive” ratings to “continue planned investments” and advises potential customers to consider these vendors as ”a strong choice for strategic investments"

“We are proud to be recognized in Gartner’s MarketScope for High-End Enterprise Disk Arrays report as we believe it demonstrates our continued success in the high-end storage market worldwide and our industry leadership in storage virtualization,” said John Mansfield, SVP of Global Solutions Strategy and Development, Hitachi Data Systems. “We believe achieving the highest rating by one of the industry’s top analyst firms reflects our core strengths including our ability to execute on an integrated services-oriented storage solutions vision and roadmap that is strategically aligned to the broad needs of our global customers.”

In the MarketScope for High-End Enterprise Disk Arrays report, Gartner also notes “the majority of the vendors in our evaluation now support the technologies that Gartner considers must have functionality for the high-end enterprise disk array market, including thin provisioning and tiered storage.” The report covered the state of the market and evaluated six high-end enterprise disk array vendors based on the following criteria:

* Marketing strategy
* Product strategy
* Product or service
* Sales execution and pricing
* Market responsiveness and track record
* Customer experience

The Gartner MarketScope for High-End Enterprise Disk Arrays, Sept. 2008 report by April Adams, Roger W. Cox and Stanley Zaffos is available at http://www.hds.com/corporate/press-analyst-center.

MarketScope Disclaimer
The MarketScope is copyrighted 2008 by Gartner, Inc. and is reused with permission. The MarketScope is an evaluation of a marketplace at and for a specific time period. It depicts Gartner’s analysis of how certain vendors measure against criteria for that marketplace, as defined by Gartner. Gartner does not endorse any vendor, product or service depicted in the MarketScope, and does not advise technology users to select only those vendors with the highest rating. Gartner disclaims all warranties, express or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.

About Hitachi Data Systems
Hitachi Data Systems Corporation provides Services Oriented Storage Solutions that enable heterogeneous storage to be dynamically provisioned according to business needs and centrally managed via industry-leading Hitachi storage virtualization software. As an integral part of the Hitachi Storage Solutions Group, Hitachi Data Systems delivers storage infrastructure platforms, storage management software, and storage consulting services through direct and indirect channels in over 170 countries and regions. Its customers include nearly 60-percent of Fortune 100 companies. For more information, visit the company’s Web site at http://www.hds.com.

About Hitachi, Ltd.
Hitachi, Ltd., (NYSE: HIT / TSE: 6501), headquartered in Tokyo, Japan, is a leading global electronics company with approximately 390,000 employees worldwide. Fiscal 2007 (ended March 31, 2008) consolidated revenues totaled 11,226 billion yen ($112.2 billion). The company offers a wide range of systems, products and services in market sectors including information systems, electronic devices, power and industrial systems, consumer products, logistics, materials and financial services. For more information on Hitachi, please visit the company’s website at http://www.hitachi.com.

© 2008, Hitachi is a registered trademark of Hitachi, Ltd. and/or its affiliates in the United States and other countries. Hitachi Data Systems is a registered trademark and service mark of Hitachi, Ltd. in the United States and other countries. All other trademarks, services marks, company names are properties of their respective owners.