Amdahl Millennium Global Servers Lead in TPF Performance.

SUNNYVALE, Calif.--(BUSINESS WIRE)--Oct. 26, 1999--

Amdahl Corp. Tuesday made public the results of benchmark testing that demonstrated the industry-leading performance of its Millennium(tm) Global Servers in a System/390 Transaction Processing Facility (TPF) environment.

TPF, a real-time mainframe operating system, supports transactions requiring extremely high input/output (I/O) message switching such as ATM transactions, stock trading, or airline reservations.

The TPF-on-Millennium benchmarks confirm the advantage of Millennium servers. Two sets of tests were performed -- one with a Millennium GS765 in single-image mode and one with a Millennium GS765 and a GS725 loosely coupled running workload based on a real-world customer workload.

The results were conclusive. In single-image mode, the Millennium GS765 clocked just short of 50,000 I/Os per second. Published reports from other vendors under similar conditions do not yield these performance characteristics. The multi-image profile yielded a rate of 40,000 I/Os per second, exceeding expectations by 2,000 I/Os per second.

"TPF is at the heart of the majority of airline and financial industries that demand a secure, predictable environment for handling billions of transactions," said David West, vice president, Systems Marketing at Amdahl. "Millennium Global Servers provide that environment. Current business practices, globalization, Internet developments all contribute to a transaction-oriented world that can be well-served by TPF on a Millennium Global Server."

The impressive results of the Millennium Global Servers were achieved without the benefit of the IBM Channel Redrive feature sometimes used in TPF environments to increase I/O rates. Millennium Global Servers are designed, built, and tested with demanding TPF requirements in mind, and their high I/O rate derives from an extremely fast input/output processor (IOP).

Because the Channel Redrive approach eliminates the ability of direct access storage devices (DASD) to reconnect over multiple paths, the Millennium design is more efficient, yielding equivalent or higher I/O rates and at the same time offering greater DASD access and lower cost.

The Amdahl 2000A Series, the latest in the Millennium Family, uses the same design as the Millennium 700 Series but has faster internal processing speeds and can be expected to yield even higher I/O rates. Millennium support for TPF is more evidence of Amdahl's commitment to helping customers take charge of change.

Benchmarks are performed in controlled circumstances and results are highly dependent on workload and operating environment. Actual results in any particular operating environment are likely to be different from the results obtained in this study.

Purchase of Millennium servers can be initiated on the Internet by going to http://www.eshopamdahl.com/millennium/index.html.

About Millennium Servers: www.amdahl.com/doc/products/compatible/Millennium/Millennium.html

About Amdahl: http://www.amdahl.com/

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

Amdahl is a registered trademark and Millennium is a trademark of Amdahl Corp. System/390 is a registered trademark of IBM Corp. All other trademarks and product names are the property of their respective owners.

The information in this document may be superseded by subsequent documents. For details regarding delivery of specific products, features, and services, contact your local Amdahl representative.

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