HP Data Protector A.06.11 Command Line Interface Manual page 319

The contents of MMDB and CDB can be exported to and re-created from text files.
Text files are in the ASCII format on UNIX systems and in the UNICODE format on
Windows systems.
The omnidbutil options used for exporting and re-creating the contents of MMDB
and CDB are: -readdb and -writedb.
LISTING AND UNLOCKING BACKUP DEVICES, TARGET VOLUMES, MEDIA AND
LIBRARY SLOTS
Backup devices, target volumes, media and library slots in use are locked during
backup and restore. In certain situations (backup or restore session ends abnormally),
devices remain locked, even though the MA, SSEA, SNAPA, or SMISA is not running.
By default, such devices are unlocked after 60 min. The user can list all locked and
unlock devices, target volumes, media and library slots.
The omnidbutil options used for listing and unlocking backup devices, target
volumes, media and library slots are: -show_locked_devs and
-free_locked_devs.
MERGING LOCAL MMDB INTO CENTRALIZED MEDIA MANAGEMENT DATABASE
(CMMDB)
In larger multi-cell environments with high-end backup devices, you may want to
share these devices and media among several cells. This can be achieved by having
one centralized MMDB database for all the cells and keeping an individual CDB
database for each cell. This allows media and device sharing while preserving the
security capabilities of the multi-cell structure. To achieve this, the local MMDB must
be merged into the CMMDB.
The omnidbutil option used for merging MMDB into CMMDB is -mergemmdb.
SYNCHRONIZING CDB AND MMDB
In certain situations, CDB and MMDB may be out of sync (different readdb of CDB
and MMDB, restore of CMMDB while leaving local CDB intact, etc.). In this case
both DBs must be synchronized.
The omnidbutil option used for synchronizing CDB and MMDB is -cdbsync.
MISCELLANEOUS TASKS
These tasks involve operations such as extending tablespaces, purging the obsolete
pathnames from the CDB, displaying the information about the IDB and the IDB
upgrade, changing references in object versions from one device to some other
device, changing the owner of the CDB to the current Cell Manager, displaying the
CDB owner, and more.
Command line interface reference 319