User's Manual

122 Migration, release, recall, and deletion
NOTE: Having multiple media copies can speed up the recall of files, since any of the copies can be
used for recall. For further information on multiple copying, see ”Multiple copying” on page 131.
Default recall policy
Default recall policy is defined in the FSE configuration template for FSE partition configuration. For details,
see ”Template for FSE partitions - Recall and Allocation part” on page 251.
Deletion
FSE provides the ability to delete files automatically on HSM file systems. You can use this feature for
various purposes, such as in an Information Lifecycle Management (ILM) environment made necessary by
legal requirements, or for freeing disk space of redundant, out-of-date files.
Automatic deletion process
Automatic deletion is a process executed on an FSE partition. The process is controlled and performed by
a special type of FSE job: the deletion job. You configure FSE deletion jobs by specifying a deletion policy
in each FSE partition configuration file. The deletion policy determines the files considered for deletion and
the criteria that determine when they are deleted.
The automatic file deletion process consists of two phases. When an FSE deletion job is initiated, it first
scans the File System Catalog (FSC) for files on the FSE partition and makes a list of the files that satisfy the
deletion policy criteria. This list is then passed to Hierarchical Storage Manager (HSM), which deletes the
files on the HSM file system.
NOTE: Automatic deletion is also supported on WORM HSM file systems. During deletion, the files are
deleted from the HSM file system. Afterwards, the deleted files are “migrated” to the WORM FSE media.
To trigger an FSE deletion job, you use the fsefile command, specifying the name of the FSE partition
on which you want to run the deletion job. You can also set up an automatic task and include the
fsefile invocation in it. This way, you can completely automate the file deletion tasks.
Linux specific
You can configure a regular cron job for this purpose.
Windows specific
You can schedule a task for this purpose.
The progress of the deletion process is logged to the FSE event log, and potential errors are logged to the
FSE error log. The list of files that were deleted is written to the HSM file system log file on the FSE client
that hosts the FSE partition. The HSM file system log file is called hsmfs_PartitionName.log. The
locations of this file is platform-dependent.
Linux specific
HSM file system log file is located in the directory /var/opt/fse/log.
Windows specific
HSM file system log file is located in the directory %InstallPath%\var\log.
The value of %InstallPath% depends on the choice made in the FSE installation process. It defaults to
C:\Program Files\Hewlett-Packard\FSE.
Deletion policy parameters
You can set up a deletion policy for an FSE partition by specifying appropriate parameters in the FSE
partition configuration file. The deletion policy can be set up while configuring a new FSE partition or
when modifying an existing FSE partition configuration.