AdministrativeTasks
2-34 OperatingTasks 600716 Rev A
Cleanup Policy Cleanup policy is used to remove file data from disk. The
number of files removed is based on the available disk space
requested for a file system. When the cleanup policy is run,
each file that is a disk data truncation candidate is assigned a
weight. This weight is a factor in determining to remove one
particular disk file over another.
A disk file becomes a candidate for cleanup if it exhibits the
following characteristics:
• The required number of copies are stored to media
• The file attributes are not set for exclusion from cleanup
processing
• The file is idle on disk for its mintime interval
When cleanup policy is applied, file data is truncated beginning
with files of the highest weight and continuing down the list.
Cleanup policy application stops after the file system reaches its
specified free space percentage or when the list is exhausted. If
the list is exhausted before the specified free space is reached,
the returned status indicates this as a failure to reach the
required percentage fill level.
To obtain more free space, additional files must be made
eligible for truncation and the cleanup policy must be rerun.
Files are made available by reducing relevant mintime values
(either on a DataClass group or on specific files), or by ignoring
the mintime checkbyexecutingthepolicywithaforce option.
Generating fsstore commands for disk-only files also makes
additional files available for disk truncation.The cleanup policy
is initiated on a file-system basis with the fspolicy -t
command.