Results 1 to 2 of 2

Thread: Backup levels and restores

  1. #1

    Default Backup levels and restores

    Hi all,
    I've read through most of the wiki and this subforum, and have just a couple questions about Amanda and the Windows Client.

    First - I'd like to see if I understand the wiki's explanation of backup levels correctly. Please reference the example output snippet from "amadmin DailySet1 find" below:
    date                host         disk  lv tape or file  file part status
    2009-12-29 13:50:19 "C:/"  0 DailySet1-04     1  1/1 OK
    2009-12-30 01:30:02 "C:/"  1 DailySet1-05     1  1/1 OK
    2009-12-31 01:30:02 "C:/"  1 DailySet1-06     1  1/1 OK
    In this example, am I correct in thinking that the 12-31-09 backup is a differential backup from the last full (level 0) on 12-29-09? So if I restore the 12-29-09 full backup, and then apply the 12-31-09 backup, then I'd have a correct restore for the entire C:/ drive based on the 12-31-09 point in time? In other words, I could skip the 12-30-09 backup entirely (hence the 12-31-09 is a differential, not an incremental).

    Second - could anyone share any tips or advice on how to best apply incremental or differential backups to a full? Let's say that I need to restore most/all of a Windows machine, but I need to restore a level 0, 1, and 2 in order to get the most recent copy of the entire machine... do I simply need to perform the full level 0 restore, and then apply the level 1 and level 2 (overwriting old files in the process)? Is there a better way?

    I'd appreciate your input. Thanks!!

  2. #2
    Join Date
    Oct 2005


    Yes 12/30 differential backup is not needed to restore to 12/31 state.

    You need to start with most recent full, follow it with most recent level 1 and most recent level 2 .... to restore the DLE to most recent time.


Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts