Forum Discussion

ab67's avatar
ab67
Level 3
7 years ago

How to set overwrite protection period in NetBackup 8.1

Hi Guy,

Please help me how to configure overwrite protection period feature in Netbackup 8.1 ?

I cann't see it in console management

 

Thanks you !!!

8
Windows Server 2016
  • Marianne's avatar
    Marianne
    7 years ago
    ab67 wrote:

    Week 1 - The Full backup is located to Tape 1 after that the Tape 1 will be locked to prevent the other policy overwrite to it

     

    It's very helpfull to help me check which backup image resides in which tape

    Once again - NetBackup does not work like that. 
    NetBackup works stricktly according to Retention Level and will merely append to same tape.  
    A tape can only be overwritten when all images written on the tape have expired. 

    There is no need to manually keep track of where images reside. NetBackup does a very good job doing that.
    When you want to restore, simply select the client and the date that you want to restore from and select files/folders. 
    NBU will display the media id needed for restore. 

  • Marianne's avatar
    Marianne
    Level 6
    7 years ago

    Are you referring to the Backup Exec 'overwrite protection' feature associated with tape media?

    NBU does not work like that. 
    NBU uses the retention level that is selected in Policy Schedules.
    A tape can be appended to as long as all relevant parameters are the same (e.g. volume pool and retention level).
    NBU will allow tape to be overwritten when all images on a tape has expired.

    You can see when the last image on a tape will expire with this command:
    bpmedialist -m <media-id>

    Some other useful info in this blog: https://vox.veritas.com/t5/Backup-Recovery-Community-Blog/Understanding-how-NetBackup-writes-to-a-tape/ba-p/784790

    • ab67's avatar
      ab67
      Level 3
      7 years ago

      I mean I want the backup image is located to consecutive tape. 
      Example :

      Week 1 - The Full backup is located to Tape 1 after that the Tape 1 will be locked to prevent the other policy overwrite to it

      Week 2 - The Full backup is located to Tape 2 after that the Tape 2 will be locked to prevent the other policy overwrite to í

      ......

      It's very helpfull to help me check which backup image resides in which tape

      Thanks !

      • mph999's avatar
        mph999
        Level 6
        7 years ago

        NetBackup is not really designed to work like that - the idea is you give it a load of tapes (or disk space) and let it get on with it ...

        However, if you wish to 'lock' a tape, simply right click the tape in the GUI, and choose 'suspend'.

        The images on a particular media can be seen with bpimmedia command.

  • Yogesh9881's avatar
    Yogesh9881
    Level 6
    7 years ago

    Hi,

    Netbackup will not overwrite any tape till data will expire ...so no need to set "overwrite protection "