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IBM 990 Reference Manual: Ibm ~ Zseries 990

Zseries and z/os.
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Operating System
ESA/390
(31-bit) (64-bit)
®
OS/390
Version 2 Release 10
z/OS Version 1 Release 2
z/OS Version 1 Release 3
z/OS Version 1 Release 4
z/OS Version 1 Release 5, 6
®
Linux on S/390
Linux on zSeries
z/VM Version 3 Release 1
z/VM Version 4 Release 3
z/VM Version 4 Release 4
z/VM Version 5 Release 1
(3Q04)
VSE/ESA
Ver. 2 Release 6, 7
z/VSE Version 3 Release 1
TPF Version 4 Release 1
(ESA mode only)
* Customers with z/OS Bimodal Migration Accommodation Offering
may run in 31-bit support per the terms and conditions of the Offering.
Bimodal Offering available for z/OS ONLY.
z/Arch
Compati Exploita
bility
tion
Yes
Yes
Yes
No
No*
Yes
Yes
No
No*
Yes
Yes
No
No*
Yes
Yes
Yes
No
Yes
Included Included
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Included
Yes
No
Yes
Included
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
No
IBM ^ zSeries 990
IBM ^ zSeries is the enterprise class e-business
server optimized for the integration, transactions and data
of the next generation e-business world. In implement-
ing the z/Architecture with new technology solutions, the
zSeries models are designed to facilitate the IT business
transformation and reduce the stress of business-to-busi-
ness and business-to-customer growth pressure. The
zSeries represents an advanced generation of servers
that feature enhanced performance, support for zSeries
Parallel Sysplex clustering, improved hardware man-
agement controls and innovative functions to address
e-business processing.
The z990 server enhances performance by exploiting new
technology through many design enhancements. With a
new superscalar microprocessor and the CMOS 9S-SOI
technology, the z990 is designed to further extend and
integrate key platform characteristics such as dynamic
fl exible partitioning and resource management in mixed
and unpredictable workload environments, providing scal-
ability, high availability and Quality of Service to emerging
e-business applications such as WebSphere
Linux.
The z990 has 4 models available as new build systems
and as upgrades from the z900.
The four z990 models are designed with a multi-book
system structure which provides up to 32 Processor Units
(PUs) that can be characterized prior to the shipment of the
machine as either Central Processors (CPs), Integrated
Facility for Linux (IFLs), or Internal Coupling Facilities (ICFs).
6
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This manual also for:

Z/os, Z990

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