Explanation: The tape manager (bptm) cannot successfully unassign a media ID.
Recommended Action: Do the following, as appropriate:
Check the NetBackup Problems report for the cause of the problem.
Verify that the NetBackup Volume Manager (vmd) is active on UNIX and Linux or the NetBackup Volume Manager service is active on Windows.
For detailed troubleshooting information, create a debug log directory for bptm and retry the operation. Check the resulting debug log.