Hitachi Data Systems Teams With Compuware to Provide Asset Management Flexibility On OS/390 Products.

SANTA CLARA, Calif.--(BUSINESS WIRE)--June 22, 1999--

Hitachi Data Systems' Virtual Server Facility Enables Users to More

Closely Define Actual Capacity Requirements for Applications

Hitachi Data Systems today announced that Compuware Corporation will support Virtual Server Facility (VSF(TM))-capable mainframe processing platforms from Hitachi Data Systems and its distributors by offering licensing and pricing options based on capacity for VSF-defined servers.

Compuware's support of VSF-defined servers will cover Compuware OS/390(R)-based product offerings to be deployed on VSF-capable systems.

VSF -- available on Hitachi Skyline Trinium(TM), Pilot P9, and P8 systems -- helps customers more efficiently manage their software assets by allowing them to set definite boundaries within the processor and assign unique serial numbers and model identifiers. Using Instruction Processor (IP) Isolation Technology, VSF allows up to 15 discrete Virtual Servers within a single footprint.

Customers instruct Hitachi Data Systems to configure the virtual server environment according to the number of instruction processors required for the designated workload, thereby allowing users to isolate specific software applications on server boundaries. Users can employ one Virtual Server as a data warehouse, another as a World Wide Web server, another to facilitate Online Transaction Processing (OLTP), and another for Enterprise Resource Planning (ERP) applications.

"The combination of Hitachi's VSF and Compuware's OS/390 products increases the range of flexibility that customers can use in their software configuration environments," said Alan Cade, vice president and general manager, Hitachi Data Systems Enterprise Servers. "We are delighted to team with Compuware to provide our mutual customers with powerful tools to manage their software assets."

"Compuware is committed to offering licensing and pricing options that best reflect value derived from our industry-leading line of OS/390 products," said Hank Jallos, executive vice president, Compuware Products Division. "Our support of the VSF technology demonstrates this by allowing users the flexibility to leverage their computing capacity requirements. It also demonstrates Compuware's support for users considering new workload application growth, and growth relating to the demands of e-commerce applications."

About Compuware

Compuware productivity solutions help 14,000 of the world's largest corporations more efficiently maintain and enhance their most critical business applications. Providing immediate and measurable return on information technology investments, Compuware products and services improve quality, lower costs and increase the speed at which systems can be developed, implemented and supported.

Compuware employs more than 11,000 information technology professionals worldwide, including more than 7,000 in its professional services organization. With fiscal 1999 revenues of more than $1.6 billion, Compuware is the world leader in client/server development technology. For more information on Compuware, please contact the corporate offices at 800/521-9353. Compuware also can be found on the World Wide Web at http://www.compuware.com.

Hitachi Data Systems

Recognized as a leading provider of business solutions for the world's most IT-intensive corporations, Hitachi Data Systems offers professional services globally, multiplatform storage subsystems, and the industry's broadest line of high-performance servers. The company's extensive range of products and services, coupled with its business alliances with key industry leaders, enable it to transform IT into business agility for high-end and middle-market customers.

Hitachi Data Systems is owned by Hitachi, Ltd. (NYSE:HIT) and has its headquarters in Santa Clara. For further information on Hitachi Data Systems, access www.hds.com.

For further information on the Hitachi Data Systems Skyline Trinium, access www.hds.com/trinium/index.html. For further information on the Hitachi Data Systems P9 Pilot Series(TM), access www.hds.com/pilot/index.html. Hitachi Data Systems press releases are available at www.hds.com/news/press.html.

Note to Editors: Hitachi Data Systems is registered with the U.S. Patent and Trademark Office as a trademark and service mark of Hitachi, Ltd. Skyline Trinium, Trinium, Pilot Series, and VSF are trademarks of Hitachi Data Systems Corporation. OS/390 is a registered trademark of International Business Machines Corporation. All other brand or product names are or may be trademarks of, and are used to identify, products or services of their respective owners.