Why I'm receiving the error "Unable to open IBM.03592E05.030 (device 1, /dev/nst1)" when accessing an IBM tape library?

Solution Verified - Updated -

Issue

You can see a lot of messages on the logs when Netbackup tries to access an IBM tape library:

Jan  3 10:03:48 server1 avrd[25436]: Unable to open IBM.03592E05.030 (device 1, /dev/nst1) thru sg driver, No such device or address, DOWN'ing it
Jan  3 10:03:49 server1 avrd[25436]: Unable to open IBM.03592E05.032 (device 3, /dev/nst3) thru sg driver, No such device or address, DOWN'ing it
Jan  3 10:04:05 server1 avrd[25436]: Unable to open IBM.03592E05.031 (device 2, /dev/nst2) thru sg driver, No such device or address, DOWN'ing it

Environment

  • Red Hat Enterprise Linux 5 all versions

  • NetBackup (Symantec software)

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