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That means any mainframe that dates prior to 2000 cannot run z/OS V1.9

z/OS V1.9 will be delivered in September 2007, and it will run on the current System z9 Business Class (BC) and Enterprise Class (EC) servers, which roughly correspond to midrange and high-end servers in terms of raw performance. The software will also be supported on two prior generations of midrange gear--the zSeries 800 and 890--and on two prior generations of high-end mainframes--the zSeries 900 and 990 boxes. That means any mainframe that dates prior to 2000 cannot run z/OS V1.9.

z/Architecture An IBM architecture for mainframe computers and peripherals. The zSeries family of servers uses the z/Architecture.

CPU's

Z9

This IBM Redbooks publication discusses the IBM System z9 Enterprise Class (z9 EC), which offers a continuation of the IBM scalable mainframe servers. Based on z/Architecture, the System z9 Enterprise Class server provides major extensions by: In addition to increased performance and expansion options, improved facilities for nondisruptive maintenance and growth provide better operational support and availability. This book provides an overview of the z9 EC and its functions, features, and associated software support. More details are offered in selected areas relevant to technical planning. This book is intended for systems engineers, consultants, planners, and anyone wanting to understand the new IBM System z9 Enterprise Class functions and plan for their usage. It is not intended as an introduction to mainframes. Readers are expected to be generally familiar with existing System z technology and terminology.

IBM System z9 Enterprise Class Technical Guide

A z/OS System Programmer’s Guide to Migrating to a New IBM System z9 EC or z9 BC Server

Z900

zSeries 800

IBM says the z800, in tandem with z/OS.e, is a good machine for running e-business software such as IBM’s WebSphere, DB2, Java JDK, and MQSeries. These packages don’t need the legacy support included in the full z/OS.

zSeries 900

I was looking at the zSeries website and discovered that the 2074 model 2 was announced and supports 64 consoles (double the limit of the model 1).

Techdocs - the Technical Sales Library http://www.ibm.com/support/techdocs.


Introduction to the New Mainframe: Large-Scale Commercial Computing

Support for IBM mainframes


Cheryl Watson's CPU Chart

Current CPU Charts z/OS CPU Chart - May 2006


Linux for zSeries

Several (non-IBM) Linux distributions can be used on a mainframe. There are two generic names for these distributions:

Linux for S/390 (uses 31-bit addressing and 32-bit registers)

Linux for zSeries (uses 64-bit addressing and registers)

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