IBM 8687 Installation Guide - Page 21

IBM XA-32 chipset, System Partition Manager

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With physical partitioning, a single multinode server complex can simultaneously run multiple instances of one operating system in separate partitions, as well as multiple versions of an operating system or even different types of operating systems. The components of the server (for example memory, CPUs, and I/O) are physically divided, under the control of the server's firmware and IBM Director. The server can have up to two nodes, each capable of running its own operating system and applications, all running simultaneously. A partition can also span nodes, even to the point of having all four nodes serving one operating system. Each node can be managed independently by IBM Director. See 5.2, "System Partition Manager" on page 150 for details. 1.3 IBM XA-32 chipset The IBM XA-32 chipset is the product name describing the chipset developed under the code name "Summit" and implemented on the IA-32 platform. A product of the IBM Microelectronics Division in Austin, Texas, the XA-32 chipset is fabricated using the latest in copper technology and is composed of the following components: Memory controllers - one memory controller, code named "Cyclone", per four-way located within the SMP Expansion Module Processor/cache controllers - one processor and cache controller, code named "Twister", per eight-way located within the SMP Expansion Module PCI bridges - two PCI bridges, code named "Winnipeg", per x440 located on the centerplane and the I/O board that control both the PCI-X and Remote I/O Figure 1-4 on page 8 shows the various IBM XA-32 components in a four-way x440 configuration. Chapter 1. Technical description 7

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Chapter 1. Technical description
7
With physical partitioning, a single multinode server complex can
simultaneously run multiple instances of one operating system in separate
partitions, as well as multiple versions of an operating system or even
different types of operating systems. The components of the server (for
example memory, CPUs, and I/O) are physically divided, under the control of
the server
s firmware and IBM Director.
The server can have up to two nodes, each capable of running its own
operating system and applications, all running simultaneously. A partition can
also span nodes, even to the point of having all four nodes serving one
operating system. Each node can be managed independently by IBM
Director.
See 5.2,
System Partition Manager
on page 150 for details.
1.3
IBM XA-32 chipset
The IBM XA-32 chipset is the product name describing the chipset developed
under the code name
Summit
and implemented on the IA-32 platform. A
product of the IBM Microelectronics Division in Austin, Texas, the XA-32 chipset
is fabricated using the latest in copper technology and is composed of the
following components:
±
Memory controllers
one memory controller, code named
Cyclone
, per
four-way located within the SMP Expansion Module
±
Processor/cache controllers
one processor and cache controller, code
named
Twister
, per eight-way located within the SMP Expansion Module
±
PCI bridges
two PCI bridges, code named
Winnipeg
, per x440 located on
the centerplane and the I/O board that control both the PCI-X and Remote I/O
Figure 1-4 on page 8 shows the various IBM XA-32 components in a four-way
x440 configuration.