Forum Discussion

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 ser...
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. 

Home_224's avatar
Home_224
Level 6

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. 

 

 

davidmoline's avatar
davidmoline
Level 6
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. 

  • Home_224's avatar
    Home_224
    Level 6
    5 years ago

    Let me summary the problem to make it clear.

    There are two set on-site and off-site media for backup in our enviornment, the rentation is incremential for 2 weeks, and full backup is for two months. 

    Weekday backup for daily use the below four tapes with the different rentation, no need to insert the new tape for backup . I suppose to this situation. 

    Onsite 

    ON0001,ON0002, ON0003, ON0004

    Weekday backup for offsite tape for four tapes use for backup every single day, 5 days for daily increamential backup , it used for 20 tapes for backup. I check the backup media set for MPX , it supposes to use for backup until full.  I have to keep check every day and insert the new media for my daily job.  I don't want to this happen and spend a lot of money to buy new tape. 

    Offsite 

    Day one 

    OF0005, OF0006. OF0007, OF0008

    Day two 

    OF0009, OF0010,OF0011,OF0012

    I would like to make this clear to your expertise know the problem.

    Many Thanks,

     

    • sdo's avatar
      sdo
      Moderator
      5 years ago

      How many tape drives in your tape library?  Are they different types, or all the same type?  If different types, then how many of each type?

      • Home_224's avatar
        Home_224
        Level 6
        5 years ago

        sdo 

        There are 32 media  tape , there are daily regularly remove the offsite tape and insert tape. All is using the LTO5 media.  Vault list eject media for offsite more than insert the offsite media.