Error conditions can cause the Tivoli® Storage Manager volume information to be different from the media manager's volume database.
The most likely symptom of this problem is that the volumes in the media manager's database are not known to the server, and thus not available for use. Verify the Tivoli Storage Manager volume list and any disaster recovery media. If volumes not identified to the server are found, use the media manager interface to deallocate and delete the volumes.