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Andy2345's avatar
Andy2345
Level 6
12 years ago

disk staging restore required

Hi ALL,

 

I need to restore from my disk staging storage unit.

 

Please dont lock this thread.

The primary copy on disk will not be deleted till HWM gets triggered, till that time you can restore from disk instantly. Though the image on disk will be expired after 1 week.

 

I need to run import for this restore on my DSSU? Though the image on disk will be expired after 1 week.

 

7.1.x and Earlier
Backup and Recovery
Linux
NetBackup
  • RamNagalla's avatar
    RamNagalla
    12 years ago

     

    1. Image files on DSSU are removed immediately after expiration .Not data?

    Images files are nothing but data... so in your words data is removed from basic disk as soon as image expires.

    1. The data on the basic disk will not be deleted or expired unless it get duplicated through DSSU policy. The data will remain on the disk as per the policy retention that you have mentioned.Is this correct?

    if it reaches the expire date before it got duplicated.. data will be expired even though data is not duplicated..

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  • Yasuhisa_Ishika's avatar
    Yasuhisa_Ishika
    Level 6
    12 years ago

    In short.

    Image files on DSSU are removed immidiately after expiration, so you can not import from DSSU anyway. You have to restore from copy 2 on FDSU if never expired, or import from FDSU if already expired.

  • Andy2345's avatar
    Andy2345
    Level 6
    12 years ago
    1. Image files on DSSU are removed immediately after expiration .Not data?
    2. The data on the basic disk will not be deleted or expired unless it get duplicated through DSSU policy. The data will remain on the disk as per the policy retention that you have mentioned.Is this correct?

     

  • RamNagalla's avatar
    RamNagalla
    Moderator
    12 years ago

     

    1. Image files on DSSU are removed immediately after expiration .Not data?

    Images files are nothing but data... so in your words data is removed from basic disk as soon as image expires.

    1. The data on the basic disk will not be deleted or expired unless it get duplicated through DSSU policy. The data will remain on the disk as per the policy retention that you have mentioned.Is this correct?

    if it reaches the expire date before it got duplicated.. data will be expired even though data is not duplicated..

  • Andy2345's avatar
    Andy2345
    Level 6
    12 years ago

    @Nagalla:

    But I have read in the post.

    As per the policy schedule the data will be written to the basic disk. Once the backup completed the DSSU policy will trigger as per the schedule you have in the storage unit for staging. If for some reason the DSSU policy is not getting triggered the backups will fill the basic disk and eventually fail with no space avilable. The data on the basic disk will not be deleted or expired unless it get duplicated through DSSU policy. The data will remain on the disk as per the policy retention that you have mentioned. If your DSSU policy runs properly it will duplicate the data from the basic disk to the tape but the data will be only deleted from disk depending upon the HWM setting.

     

    And You are saying that if it reaches the expire date before it got duplicated.. data will be expired even though data is not duplicated.

     

     

    Below is the link

    https://www-secure.symantec.com/connect/forums/duplicate-full-backup-and-delete-original

  • Marianne's avatar
    Marianne
    Level 6
    12 years ago

    You already know the answer - disk images will be cleaned up by the following conditions:

    1. Natural expiration date

    2. HWM - only if image has been duplicated to tape. non-duplicated images are NOT considered for cleanup.

    The above is clearly explained in NBU Admin Guide as well as in TechNotes:
    Cleanup behaviour as from NBU 6.5: http://www.symantec.com/docs/TECH66149

    You now have enough information, right?
    Meaning that there is no need to drag out this discussion any further.