Forum Discussion

YAG55's avatar
YAG55
Level 4
7 years ago

media write error (84) in VMWare Backup.

I have the VMware Backups are getting failed with error media write error (84), we are using netbackup 7.6.1.2 on windows 2008 R2 Enterprise 64 bit Platform.

Error occurred during refresh


Thank for your help.

  • After restarting the Dell bay and repair
    Removed the DiskPool and configure it again
    Backup test is conclusive
    Thanks for your help

  • Status code 84 is too generic and the true root cause could be due one or more of many different external non-NetBackup aspects.

    My advice is that you do some research, some reading, and some digging... and then when you have something more detailed come back.

    Start here:

    https://www.veritas.com/support/en_US/article.TECH35336

     

  • More info please...

    Is this Media Server Dedupe (MSDP) or Advanced disk?

    Has this been working fine all along?
    If so, what has changed? (Assuming NO changes have been made to this old, EOSL version of NetBackup...)

    Have you checked the volumes at OS-level and confirmed that all is good and healthy?

    Any errors in Event Viewer System and/or Application logs?

    • YAG55's avatar
      YAG55
      Level 4

      Hello Marianne
      Thanks to find the answers
      Is this Media Server Dedupe (MSDP) or Advanced disk? ##Advanced disk
      Has this been working fine all along? ## I confirm that works well before
      If so, what has changed? (Assuming NO changes have been made to this old, EOSL version of NetBackup...) ## no modification on our part
      Have you checked the volumes at OS-level and confirmed that all is good and healthy? ## verify in progress
      Any errors in Event Viewer System and/or Application logs? ## no error

  • We need to know which storage unit you are using is MSDP,OST or AdvancedDisk.

    Check the basic communication from media server to storage server like is it pinging and is forward and reverse lookup working from media server to storage server.

    • YAG55's avatar
      YAG55
      Level 4

      Hi Sujay

      Nothing to report in communication between Server Media and bay dell DR4100

      STU :

       

      Thanks

      • Marianne's avatar
        Marianne
        Level 6

        As per your screenshot - this is not AdvancedDisk.

        It is Dell OST. 

        Please verify that all is well on your Dell Appliance and that comms between your master/media and the appliance is fine.

        Check status from NBU perpective with nbdevquery (in NetBackup\bin\admincmd).
        e.g. 
        nbdevquery -liststs -U
        and 
        nbdevquery -listdp -U