Fujitsu M4000 User Manual download pdf (Page 49)

Chapter 2 System Features and Capabilities 2-5

2.2 Partitioning

The M4000 and M5000 servers can be divided into multiple independent systems for

operation. This dividing function is called partitioning. This section describes

features of partitioning and system configurations that can be implemented through

partitioning.

The individual systems that result from the partitioning of the server are called

domains. Domains are sometimes called partitions. Partitioning enables arbitrary

assignment of resources in the server. Partitioning also enables flexible domain

configurations to be used according to the job load or processing amount.

Each domain runs on an independent operating system. Each domain is protected by

hardware so that it is not affected by other domains. For example, a software-based

problem, such as an OS panic, in one domain does not directly affect jobs in the other

domains. Furthermore, the operating system in each domain can be reset and shut

down independently.

2.2.1 Physical Unit for Domain Constitution

The basic hardware resource making up a domain in the server is called the physical

system board (PSB). The physical unit configuration of each divided part of a PSB is

called an extended system board (XSB). A PSB in this server can be logically divided

into one part (no division) or four parts. A PSB that is logically divided into one part

(no division) is called a Uni-XSB, and a PSB that is logically divided into four parts is

called a Quad-XSB. A domain can be configured with any combination of these XSBs.

The XSCF is used to configure a domain and specify the PSB division type.

2.2.2 Domain Configuration

A domain is an independent computing resource that runs an individual instance of

the Oracle Solaris OS. Each domain is separated from other domains, and is not

affected by operations in other domains. Domains enable one server to perform

different types of processing.

The operations within a domain are controlled with Oracle Solaris administration

tools. However, to create, configure, and monitor domains, you must use the XSCF,

as described in the SPARC Enterprise M3000/M4000/M5000/M8000/M9000 Servers

Administration Guide and the SPARC Enterprise M3000/M4000/M5000/M8000/M9000

Servers XSCF User’s Guide. For more background on domains, see Section 3.1.1,

“Domains” on page 3-1.

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Fujitsu M4000 User Manual Page 49