Forum Discussion

Lotfi_BOUCHERIT's avatar
Lotfi_BOUCHERIT
Level 5
11 years ago

Netbackup shows: Media is in use

Hello,

Suddenly, I see in the Netbackup console, when i start a backup task, the state is MEDIA IS IN USE and not running at all. I tried to cancel the job, restart the Storage library, restart the server, but remained the same state Media is in Use till sometime later after restart...

I would like to know from where, and what could help diagnosing this issue...

Thanks in advance!

Backing Up
Backup and Recovery
Basics
NetBackup
Windows Server (2003-2008)
  • sri_vani's avatar
    sri_vani
    11 years ago

    Try these:

    1. Run /usr/openv/netbackup/bin/admincmd/nbrbutil -dump | grep <mediaID>
    2. If nbrb still has an open assignment for this tape, you will see quite a few lines of information, but look for the line containing “MdsAllocation“
    3. Next to this will be a number so that it looks like this: MdsAllocation allocationKey=4838
    4. This is the assignment that needs to be released using this command: /usr/openv/netbackup/bin/admincmd/nbrbutil -releaseMDS 4838(Make sure it is nt active job id...if its nt a active job id go ahead and relase it)
    5. Run the dump command again step 1 to verify the assignment has been released from the tape
    6. Resume/restart the job

4 Replies

Sort By
Replies have been turned off for this discussion
  • sri_vani's avatar
    sri_vani
    Level 6
    11 years ago

    Try these:

    1. Run /usr/openv/netbackup/bin/admincmd/nbrbutil -dump | grep <mediaID>
    2. If nbrb still has an open assignment for this tape, you will see quite a few lines of information, but look for the line containing “MdsAllocation“
    3. Next to this will be a number so that it looks like this: MdsAllocation allocationKey=4838
    4. This is the assignment that needs to be released using this command: /usr/openv/netbackup/bin/admincmd/nbrbutil -releaseMDS 4838(Make sure it is nt active job id...if its nt a active job id go ahead and relase it)
    5. Run the dump command again step 1 to verify the assignment has been released from the tape
    6. Resume/restart the job
  • Lotfi_BOUCHERIT's avatar
    Lotfi_BOUCHERIT
    Level 5
    11 years ago

    Hello, thanks for your answer!

    I will try this solution next time once i'll have the same problem. But do you have an explanation about what caused this issue please?

    Thanks in advance!

    Regards!

  • sri_vani's avatar
    sri_vani
    Level 6
    11 years ago

    Probably it may happened because of the orphaned media allocation in the EMM server..

    If you face this error again verify tape is not already mounted or stuck in a tape drive via robtest  and proceed with the given steps.

    If the above steps dint resolve ur issue verify the nbemm logs for further troubleshooting.

    All the best :)

     

  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    I have seen this happening quite often in NBU 6.5. Easpecially where a number of media servers are involved and comms/network issues are seen between master and media server.

    I have also seen this in NBU 7.x, but less often. It seems that NBU 7.x is better equipped to deal with allocations. Each and every version of NBU contains enhancements/fixes for the Resource Broker (nbrb).

    I have also seen this when a long list of media-id's (VTL) is reserved at the beginning of a duplication job (e.g. SLP) although not yet in use.

    Some TNs:

    http://www.symantec.com/docs/TECH47778

    http://www.symantec.com/docs/TECH126575

    http://www.symantec.com/docs/HOWTO42484

    http://www.symantec.com/docs/TECH46807