Check manual page of tsm_drives
IBM Tivoli Storage Manager (TSM): Backup Drives
This check is used on servers running Tivoli storage manager to
monitor the state of the backup drives.
It goes to "CRIT" if a drive is in non-OK state.
This will be if the drive is not online, unavailable or unknown.
The check reports status information and serial number info for the drives.
The name of the tape drive.
The check inventorizes all tape drives as reported by TSM.