File system customization for system WPARs

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You can customize the file systems for a system workload partition (WPAR) by using the mkwpar command with the -M option. Customized file systems can be added to an existing system WPAR by using the chwpar command with the -M option. A WPAR might use namefs mounts from any type of file system that supports POSIX file system semantics when mounted with a namefs mount. If the namefs mount is used for the root file system of the WPAR, the used file system must support the creation and use of block and character devices within the WPAR.

The following file system types are supported using the vfs attribute of the -M option:
  • JFS
  • JFS2
  • NFS
  • Namefs

You can also specify that a directory should be created instead of a file system by specifying vfs=directory. Specify this attribute in situations where you do not want to maintain a large number of separate file systems.

Note: If the -M option is used with the mkwpar command for a rootvg system WPAR, or with the chwpar command for an active system WPAR, the only valid value for the vfs attribute is namefs.