Forum Discussion

unkn0wnn's avatar
unkn0wnn
Level 4
8 years ago

Missing history in backup archive and restore including CLI

Hello,

After changing slp policies to expire after copy our backup history is only available for the last month or so.

I think this it could be due to an issue as explained in ===> https://www.veritas.com/support/en_US/article.000094999
Unless some kind of cleanup routines removed / archived history.


Problem
If assignment of a custom retention level causes an image's expiration time to be set beyond the UNIX epoch time of January 19, 2038 03:14:08 UTC, images managed by a Storage Lifecycle Policy (SLP) will expire after duplication is complete.

I am trying to recover this valuable information without importing each tape as we have over 600 of them..

So I far I have found full catalog backup in 1 months old tape (month end backup), i have 2 images but the DR one in the usual location does not contain NBDB data but just cat files.

I have done bprecovery -wizard and it's restored over 30,000 files, these went to ./db/images/*/ ,

bprecovery failed to recover nbdb data due to the dr backup not having these files in image, wizard tried to expire month end infinity image as per its routine but it's failed as well..

So is there an easy way to restore backup history if images have expired ? Personally I do not think these have expired but could have been archived etc...

We are running master and disaster recovery appliances (both n5220, 7.5.0.5).

I do not think that bprecovery is an option as it contains 30 days old dat meaning that current catalog database would have been lost right ?

Catalog Merge sounds ok to me however could we not just read these files somehow ?  I remember that in older versions of netbackup all you do is restore db/images/ directories and history is available..

Any help from your side is much appreciated,

7.5
Linux
  • Marianne's avatar
    Marianne
    Level 6
    8 years ago

    Please show us a screenshot of your SLP (similar to the one in the TN).

    Any reason why you are still using an EOSL version of NBU?
    We see that the issue was solved in a later version/patch of 7.5.x.

    • unkn0wnn's avatar
      unkn0wnn
      Level 4
      8 years ago

      Hello, Please find attached.

      Beacause I have a very limited time to perform an upgrade, I think we have patched in early 2013.

      Could you please help to restore backup history so I can do restores ? I think I we need to merge catalogs somehow...

      • Marianne's avatar
        Marianne
        Level 6
        8 years ago

        You don't have the issue that is explained in the TN.

        Your issue is with with short retentions - your longest retention is 27 days - less than a month.
        That is why you don't have any history older than a month.

        After 2 weeks, your backups expire. After 27 days, your duplications expire. 

        At this point all catalog entries are deleted and backups on disk deleted as well.

        There is nothing you can do to recover the backups. Catalog recovery or merge won't help. The backups are gone.

        PS: Schedule upgrade as a matter of urgency. 
        You have NO support with your current version.