Workload Partitions: Difference between revisions

Revision as of 16:58, 9 March 2012

Revision as of 09:48, 14 March 2013

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AIX Workload partitions (WPARs) are a software implementation of [[operating system-level virtualization]] technology introduced in the [[IBM|IBM's]] [[IBM AIX (operating system)| AIX 6.1 operating system]] that provides application environment isolation and resource control.

WPARs are software partitions that are created from, and share the resources of a single instance of the AIX OS. WPARs can be created on any [[system p]] hardware that supports AIX 6.1 or higher versions. There are two kinds of WPARs, System WPARs and Application WPARs.

==System WPAR==

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==Application WPAR==

Application WPARs are light weight environments used for isolating and executing a single application process.

==Mobility==

WPAR mobility is an extension to WPARs that provides the ability to move a running workload from one physical machine to another. Both System and Application WPARs can be moved from one machine to another. To continue having access to the same files before/after mobility; the [[Unix_directory_structureUnix directory structure|filesystems]] of a mobile WPAR must either be stored in a disk or NFS mounted (both of which should be shared and accessible from all the machines where WPAR is being moved to).

The feature can be extremely helpful in the following scenarios :

* During hardware upgrades or other planned outages.

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*[http://www.ibm.com/developerworks/aix/library/au-wpar61aix/index.html Workload Partitioning (WPAR) in AIX 6.1], IBM developersworks

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[[Category:Virtualization software|Dynamic Logical Partitioning]]

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[[Category:UNIX System V|IBM Aix]]

[[Category:IBM operating systems]]