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LeeClayton's avatar
LeeClayton
Level 5
16 years ago
Solved

Tape Library not using back drives

I have a tape library with two tape drives, using netbackup 6.5.3.1. I have 2 other media servers using an identical library with no problems.
the problem I have with this one is when i start a backup, the library mounts the tape and sits there at the mounting stage and does not back up to tape. If I kick of another backup, this will then mount the other drive, as soon as the 2nd backup starts the 1st backup now begins to go from mounting to backing and starts to work, of course the 2nd job sits in the mounting stage...I also noticed that under Device manager, if i check the drives it does not list the tape number. any ideas?
Hope i explained it well enough, have 2 tape drives in a library and although both drives appeart to work, they can mount tapes, the backups will only start once the 2nd drive is used.
  • This sounds as if the OS paths for the tape drives do not match the netbackup configuration. load the first drive with a tape and try to unload it using "mt -f <device path> rewoffl" - if the wrong drive is ejected, update the netbackup configuration. If you get an error, verify that the drive is connected to the server and is functional. then find out the correct path and try again.

3 Replies

  • This sounds as if the OS paths for the tape drives do not match the netbackup configuration. load the first drive with a tape and try to unload it using "mt -f <device path> rewoffl" - if the wrong drive is ejected, update the netbackup configuration. If you get an error, verify that the drive is connected to the server and is functional. then find out the correct path and try again.
  • There appears to be a mis-match somewhere.

    Does tpautoconf -report_disc report anything?

    Presumably this is set up using Shared Storage Option (SSO), so you could try deleting & recreating tape device paths for this media server?
  • thanks guys, I decided to remove the 2 tape drives and re-add them but this time I swapped the robot drive number round as I had Drive Target 1 going to Robot drive 1 & drive target 2 going to robot drive 2. Once I swapped these round so target 1 was going to robot target 1 and vice versa both drives started working.

    thanks for the pointers guys!!!