Quota files

For each file system, IBM Storage Scale maintains quota information in internal quota files: a quota file for users, a quota file for groups, and a quota file for filesets.

Quota files are created when quotas are enabled by the -Q yes option, which can be either set in the mmcrfs command or in the mmchfs command. Quota files are maintained until quotas are disabled by the mmchfs -Q no command. To determine whether quotas are enabled on a file system, issue the following command:
mmlsfs Device -Q
where Device is the file system.

Quota files are internal product files and are not available for access by users. Quota file information is backed up by the mmbackupconfig command and is restored by the mmrestoreconfig command.

The quota files contain the following information:
  • The quota file for users contains the block limits, file limits, actual usage, and grace period for each user.
  • The quota file for groups contains the block limits, file limits, actual usage, and grace period for each group.
  • The quota file for filesets contains the block limits, file limits, actual usage, and grace period for each fileset.