Forum Discussion

belse's avatar
belse
Level 5
12 years ago

Frozen Media

Hi Experts.

I have 2 queries.

1: I just need to know that if media freezes some days back how could we know what caused the error? There are no logs in Device manager.

   We didnot enable bptm logs earlier.

2:- In suspended volume if we unsuspende it. Does it expire all the images inside it? 

Thanks,

Belse

7.1.x and Earlier
Backing Up
Backup and Recovery
Basics
NetBackup
Windows Server (2003-2008)
  • Marianne's avatar
    Marianne
    12 years ago

    Check Media Logs report for the media server that froze the tape.

    When you run the report, select enough days to include the time the media go frozen (NBU keeps this info for 28 days by default).

    If lots of information is displayed, you may want to filter the report to exclude 'Info' type messages in the report. This will leave you wilth 'Warning' and 'Error' messages.

    Enable bptm log folders on all media servers and add VERBOSE entry in vm.conf on all media servers followed by restart of NBU.

    About Suspended tapes - NBU will never automatically suspend tapes, unless you have configured Vault to suspend tapes when ejected. So, either suspending media is done by Vault or manually by backup admin.
    Suspended tapes will not add more backups to tape. 
    When images on suspended media expire, the tape will automatically be unsuspended and become available.
    Unsuspending a tape will NOT expire any images. Media will be available to be appended to.

    Frozen media happens when I/O errors happen to this media (or manually done by backup admin).
    Frozen media will not add more backups to tape. 
    When images on frozen media expire, the tape will remain frozen and NOT become available.
    Unfreezing a tape will NOT expire any images. Tape will become available again. (Not a good idea if you don't know why tape was frozen.)

  • RamNagalla's avatar
    RamNagalla
    Moderator
    12 years ago

    Hi belse,

    Frozen media can have multiple reasons... and it may be becase of

    worng configuraiton,

    issue with tape drive 

    issue with tape

    manual freeze.

    if its a latest frozen you can see the reason on the job detail status and also in the report ---> all problems 

    also in db/media/erros..

    if it a old status those log entires might be purged.. and may not avaliable..

    so if you are trying to look for the  reason.. look the above logs and see if you can find it.. if not..

    unfreeze the tape and let the tape freeze again and look for the errors.

     

    image expire happes in catalog , so suspend media does not stop the image expiration.

  • Marianne's avatar
    Marianne
    Level 6
    12 years ago

    Check Media Logs report for the media server that froze the tape.

    When you run the report, select enough days to include the time the media go frozen (NBU keeps this info for 28 days by default).

    If lots of information is displayed, you may want to filter the report to exclude 'Info' type messages in the report. This will leave you wilth 'Warning' and 'Error' messages.

    Enable bptm log folders on all media servers and add VERBOSE entry in vm.conf on all media servers followed by restart of NBU.

    About Suspended tapes - NBU will never automatically suspend tapes, unless you have configured Vault to suspend tapes when ejected. So, either suspending media is done by Vault or manually by backup admin.
    Suspended tapes will not add more backups to tape. 
    When images on suspended media expire, the tape will automatically be unsuspended and become available.
    Unsuspending a tape will NOT expire any images. Media will be available to be appended to.

    Frozen media happens when I/O errors happen to this media (or manually done by backup admin).
    Frozen media will not add more backups to tape. 
    When images on frozen media expire, the tape will remain frozen and NOT become available.
    Unfreezing a tape will NOT expire any images. Tape will become available again. (Not a good idea if you don't know why tape was frozen.)

  • rk1074's avatar
    rk1074
    Level 6
    12 years ago

    Adding onto what Nagalla suggested, go to the report section of the  master GUI >>expand the report section and select the Media logs>> select the Media server and select the date range.

    filter it with the Error and look for your media..