The MOVE DRMEDIA command could not update the state, access and location of volume volume name because it was in use by another server operation.
If the volume was in an automated library, the MOVE DRMEDIA command may have checked the volume out of the library.
If a volume pattern is specified on the command, the server continues processing the other volumes.
Wait until the conflicting volume activity has completed, and then reissue the MOVE DRMEDIA command.