Once, I started installation of Symantec Backup Exec service pack update when tape library inventory job was running. After installation has been completed I ended up with library offline and not available. It happened because of hanged NDMP sessions. To list your media changer and tape drives information run:
storage show mc
storage show tape
or
sysconfig -m
sysconfig -t
To list and kill particular NDMP sessions run:
ndmpd status
ndmpd kill job_id
Then restart Backup Exec service.
Tags: Backup Exec, disconnect, hang, kill, library, ndmp, ndmpd, session, stall, storage, Symantec, sysconfig, tape
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