NetBackup Media Manager command notes
In addition, Media Manager supports the following sets of commands that are used for device management; the NetBackup Device Manager service (ltid) starts or stops these commands as needed.
tpreq and tpunmount are user commands for requesting tape mounts and unmounts for configured drives.
tpautoconf, tpclean, tpconfig, and vmoprcmd are administrative commands for device management.
vmadd, vmchange, vmcheckxxx, vmdelete, vmpool, vmquery, vmrule, and vmupdate are administrative commands for media management.