Hitachi Data Systems Helps CSC Relocate San Diego County Data Center.

Business Editors/High-Tech Writers

SANTA CLARA, Calif.--(BUSINESS WIRE)--Oct. 2, 2000

Advanced Data Movement Solution Allows Sheriff's

Department to Maintain Access to Critical Law Enforcement

Data Throughout Relocation Process

Hitachi Data Systems, a wholly owned subsidiary of Hitachi, Ltd. (NYSE:HIT), today announced it has helped Computer Sciences Corporation (NYSE:CSC) successfully complete a complex data management project in which they enabled Southern California's County of San Diego to continue operations while moving to a modern, new data-center facility some twenty miles away.

Driving the move requirements was the need of the County Sheriff's department to maintain complete access to centralized databases located in Sacramento, Calif., 500 miles away, while data center facilities were in transition from the old to the new facility. It was essential that the Sheriff's department be able to access these databases on a 24/7 basis, with only brief and predictable interruptions for scheduled maintenance.

Computer Sciences Corporation (CSC) managed the move and selected Santa Clara-based Hitachi Data Systems to provide the storage-management software and services for the project.

CSC is the lead company of the Pennant Alliance, which assumed operation of the County's IT infrastructure under a $644 million outsourcing contract announced in October 1999. The contract is the largest IT outsourcing project in the history of state and local government and covers the full spectrum of information and telecommunications services.

"The opportunity to move our data center operations to a new facility has been very important to the County," said Thomas Boardman, chief technology officer for the County of San Diego. "This move is a significant step in allowing us to better serve citizens in the San Diego area. The choice of a consulting team to manage the move was a crucial decision for us. It was imperative that our clients be able to do business as usual during the entire process."

The move involved a two-stage transfer of 600 gigabytes of mainframe operating-system software data and was accomplished using Hitachi's advanced data-movement software, which promoted minimal disruption to critical data-processing operations. In the first-stage of data transfer, the County's S/390(R) operating system was migrated from two StorageTek (NYSE:STK) Iceberg(R) disk subsystems to a Hitachi Freedom Storage(TM) 7700E disk array, using Hitachi On-Line Data Migration (HODM) software. Transferring the data over ESCON(R) cables, HODM was able to migrate the 600 gigabytes of data in just a few hours, a task that could take significantly longer with other data transfer solutions. Except for a momentary interruption of the S/390 applications to attach cable interfaces, the applications ran without disruption during the entire subsystem-to-subsystem data-transfer process.

The next step was to "mirror" the data stored in the 7700E to another 7700E in the new data center. Hitachi Asynchronous Remote Copy (HARC) software, running on the 7700E at the existing site, was used in conjunction with channel extender hardware from Computer Network Technology Corp. (Nasdaq:CMNT), enabling data to be transferred to the new site reliably, at high speed, over T3 lines. There was only momentary downtime at the existing site, to flush buffers, and a very brief time-out at the new site to enable the S/390 there to resume production with the copied data.

One example of the benefit that HARC software brings to the table is its ability to suspend and resume the copying function from any point in the process. For example, if there should be a failure of critical hardware, such as a telephone line, HARC would suspend copying. Then, after the repair was made, the system would be brought back on line, with HARC resuming just where it left off.

About Computer Sciences Corporation

Computer Sciences Corporation, one of the world's leading consulting and information technology (IT) services firms, helps clients in industry and government achieve strategic and operational objectives through the use of technology. Having guided clients through every major wave of change in IT for more than 40 years, CSC today is well positioned to develop and apply IT strategies and technologies, particularly in the e-business area, based on its full range of capabilities in management and IT consulting; systems design and integration; applications software; Web and application hosting; and IT and business process outsourcing.

Since its formation in 1959, CSC has been known for its flexibility and customer-centric culture. Through numerous agreements with hardware and software firms, the company develops and manages solutions specifically tailored to each client's needs. With more than 60,000 employees in locations worldwide, CSC had revenues of $9.6 billion for the twelve months ended June 30, 2000. It is headquartered in El Segundo, Calif. For more information, visit the company's Web site at www.csc.com.

About Hitachi Data Systems

Committed to helping customers exploit the value of information technology for success in the Internet economy, Hitachi Data Systems, a wholly-owned subsidiary of Hitachi, Ltd. (NYSE:HIT), is a leading provider of business solutions for the world's most information-intensive corporations. For further information on Hitachi Data Systems, access www.hds.com.

About Hitachi, Ltd.

Hitachi, Ltd., headquartered in Tokyo, is one of the world's leading global electronics companies, with fiscal 1999 (ended March 31, 2000) consolidated sales of 8,001 billion yen ($75.5 billion(1)). The company manufactures and markets a wide range of products, including computers, semiconductors, consumer products and power and industrial equipment. For more information on Hitachi, Ltd., please visit Hitachi's Web site at http://www.hitachi.co.jp.

(1) At an exchange rate of 106 yen to the dollar.

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. Freedom Storage is a trademark of Hitachi Data Systems.

S/390 and ESCON are registered trademarks of International Business Machines Corporation. Iceberg is a registered trademark of Storage Technology Corporation.