You could first try updating the status to scratch.
It could be that the volume had a mount or write failure.  That could be
due to media error or tape drive error.
If the tape is unlabeled or damaged it will fail again when you try to
checkout or checkin.

update libvol <library_name> <volser>  status=scratch

After that, as a test try checking the tape out (or in) with
"checklabel=yes" to force it to read the internal label.

George Huebschman (George H.)



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