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v Hardware Management Console (HMC). The HMC consists of a display, independent processor,
keyboard, and mouse. One HMC is standard for all systems. An additional HMC is optional. Two HMCs
can attach to one processor subsystem, or two HMCs can jointly manage up to 16 processor
subsystems in up to four racks with the use of 8-port asynchronous adapters and 128-port
asynchronous adapters.
For more information about the use of logical partitioned systems, see the "Partitioned System
Overview."
Processor Subsystem
The pSeries 655 Model 651 (processor subsystem) is a processor node installed in a frame-mounted
cage. The equipment rack holds a maximum of 16 processor subsystems.
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1 Frame Cage (shown with two processor subsystems and front cover removed)
2 First pSeries 655 Processor Subsystem
3 Second pSeries 655 Processor Subsystem
The Hardware Management Console for pSeries (HMC) is used to manage the resources in the system.
The system can be configured as a full system partition, which means that all resources of the system are
used as a single system.
The system can also be configured into multiple (or logical) partitioned systems. With a logically partitioned
system, system resources can be divided into a number of systems, each running in its own partition.
Numerous configurations of pSeries 655 systems can be managed from one HMC. A second HMC can be
used for redundancy.
Partitioned System Overview
Partitioning enables users to configure a single computer into several independent systems. Each of these
systems, called logical partitions, is capable of running applications in its own independent environment.
This independent environment contains its own operating system, its own set of system processors, its
own set of system memory, and its own I/O adapters.
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Eserver pSeries 655 User's Guide
Rear View
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Front View
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