The PERFORM LIBACTION command failed. Either the library lacks the SCSI capability to determine the serial and element numbers of its own drives, or SAN Discovery failed to translate the serial number to the drive's special file name.
The command is not processed.
Correct any issues with SAN Discovery and reissue the PERFORM LIBACTION command. If the command cannot be processed, drive and drive path definitions for this library will need to be defined manually, one drive at a time.