HP Data Protector A.06.11 Command Line Interface Manual page 127

By specifying SessionID, the -barlist, or the –all option, information
about the backup components and disks about the sessions that match the given
criteria will be displayed.
–detail displays detailed information (components, disks) about the specified
session.
-save_metadata saves the backup components document (Backup
Components Document.xml) and writer metadata document
(writer_name.xml) to the specified directory.
-get session_persistent {SessionID [SessionID...]|–barlist
BackupSpecName
[–older_than YYYY/MM/DD]|–all [–older_than YYYY/MM/DD]}
[-save_metadata Directory]
Displays information about any backup session created using VSS software or
the hardware provider.
By specifying SessionID, the -barlist, or the –all option, information
about the sessions that match the given criteria will be displayed.
-older_than displays information about the backup sessions, specified with
the –barlist option, or all sessions that were created before the specified
date.
-save_metadata saves the backup components document (Backup
Components Document.xml) and writer metadata document
(writer_name.xml) to the specified directory.
-remove session {SessionID [SessionID...]|–barlist
BackupSpecName|–all}
[-force] [–reference]
Removes the specified ZDB-to-disk or ZDB-to-disk+tape sessions and their replicas
from the VSSDB (non-persistent metadata) and disk array.
By specifying the SessionID, -barlist, or –all option, the information
about the sessions that match the given criteria will be deleted from the VSSDB
and the session's replicas will be deleted from the disk array.
If -reference is specified, only the reference information about the specified
sessions and their replicas will be removed from the database. This option can
be used to remove an entry that points to a replica that no longer exists.
The removing operation fails in the following cases, unless the –force option
is used:
— If you have changed the disks' configuration manually after the backup (for
example, the sessions target volumes were presented manually to some other
system).
Command line interface reference 127