Amdahl Breaks the Two-Gigabyte Barrier, Allowing Customers to Address up to a Terabyte of Real Storage.

SUNNYVALE, Calif.--(BUSINESS WIRE)--March 16, 1999--

Amdahl Coupling Control Code cracks the 31-bit addressing barrier

and eliminates the need for expanded storage 

Amdahl Technology Group (ATG), a division of Amdahl(R) Corporation, today announced that Amdahl Coupling Control Code(TM) (ACCC), running on Millennium(TM) servers has broken the S/390 architecture limit of two gigabytes of available real storage. This Extended Real Addressing (ERA) advance, available only from Amdahl, means that customers no longer incur the overhead associated with paging in and out of expanded storage. Overall system performance and response time are dramatically improved.

The Amdahl Millennium family of servers features a unique ERA-extension to the S/390 architecture, allowing ACCC access to a 40-bit real addressing space, instead of the standard 31-bit address. By using Amdahl-unique ACCC extensions, global organizations gain the ability to address up to one terabyte of real storage in a single system, resulting in increased value, capacity, and performance for Parallel Sysplex environments.

"ACCC Extended Real Addressing dramatically boosts the addressable real storage in a S/390 architecture well beyond its 2-gigabyte current limit to up to one terabyte," said David West, vice president, Systems Marketing at Amdahl Technology Group. "This Millennium feature provides our customers with a significant performance advantage and showcases our ability to pioneer innovations for our customers' competitive advantage."

To add further value to a customer's Parallel Sysplex environment, Amdahl Fast Hiperlinks, linking nodes and coupling servers, process performance-critical lock requests 40 percent faster than competitive offerings.

The Millennium 800 Series servers, Amdahl's newest and highest-capacity S/390-compatible servers, executing up to 1,075 millions of instructions per second, have been shipping since December 1998. With the addition of three new low-end models recently introduced, the Millennium 800 Series now has 45 models to help customers even better assist in the planning and sizing of servers and to respond to business requirements.

About Amdahl

Amdahl Corporation is a wholly owned subsidiary of Fujitsu Limited, a leading provider of information technology products and solutions for the global marketplace with revenues of $37.7 billion in the fiscal year ended March 31, 1998. Amdahl provides integrated enterprise computing solutions designed to meet the needs of the leading, most compute-intensive environments around the world. Amdahl has over 25 years of experience with large-scale computing solutions and client/server technology. The company supports heterogeneous architectures found in mission-critical customer environments that blend MVS(R), Windows NT(R), and UNIX(R) operating systems. Headquartered in Sunnyvale, California, Amdahl combines hardware and software products and services methods with world class offerings to create customized solutions that help clients gain a competitive advantage in their industries.

For the Year 2000 compliance status of this offering or any other Amdahl offering, visit the Amdahl Year 2000 Web site at: www.amdahl.com/y2k

Amdahl is a registered trademark and Millennium and ACCC are trademarks of Amdahl Corporation. MVS and S/390 are registered trademarks of International Business Machines Corporation. Windows NT is a registered trademark of Microsoft Corporation. UNIX is a registered trademark in the United States and other countries, licensed exclusively (except in Japan where such license is non-exclusive) through the Open Software Foundation. All other trademarks and product names are the property of their respective owners.

NOTE TO EDITORS: Amdahl news releases are available on the Internet at www.amdahl.com, the Amdahl Corporation home page. The Amdahl site provides current, in-depth information on Amdahl offerings and solutions for enterprise computing.