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Home_224's avatar
Home_224
Level 6
5 years ago

Set the media retention period

Dear All,

I want to dedicate the scope of media to run the full and differential backup and keep for 1 month and 2 weeks, so that I can full utitilization the media and not to buy extra media to serve full backup media and differential backup individual. 

Can you advice on that the setting/

 

Thanks,

 

 

7.1.x and Earlier
Windows Server 2003 R2
  • davidmoline's avatar
    davidmoline
    5 years ago

    NetBackup usually does a reasonable job of managing media using the default settings. 

    One thing that may interfer with this is if you are removing media from the library before it becomes FULL. Another possibility is that some of these media settings have been altered from their defaults. 

    I'm not entirely clear what the problem is that you are trying to solve. You should be able to estimate the amount of data that is backed up (on average) each differential and full backup. This should guide you to the number of media required for your backup cycle. You may want to review the NetBackup Administration Guide Volume 1 which has more details. 

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  • Dollypee's avatar
    Dollypee
    Moderator
    5 years ago

    Home_224 How do you mean by dedicating media to run full and differential backup? As far as retention period is concern, you can control this using SLP or via policy configuration itself. 

    • davidmoline's avatar
      davidmoline
      Level 6
      5 years ago

      Home_224 If you mean to mix both full and differential backups to the same media, this can be done. It is not good practice and may in fact cause more media to be used than by using the default setting of one data retention per media. 

      If you want to do this, there is a tick box on the master server host properties under the media section "Allow multiple retentions per media". 

      • Home_224's avatar
        Home_224
        Level 6
        5 years ago

        Dollypee davidmoline 

        To make this change, as I find the the daily job to using different media , the weekly backup use another new media for backup. Therefore, I always to insert new media to ensure the enough media for whole week, buy a lot of media to fill up the library.  I am not sure my suggestion to improve the media expense.