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dormi98's avatar
dormi98
Level 3
13 years ago

NDMP - NetApp Incremental Job size

Hello!

I got a Netapp with CIFS Shares (total 700GB at the moment) which is backed up by NDMP

I created two jobs.

Job 1: runs on friday and does a full Backup (Level 0 - full Backup - in the NDMP settings of the job)

Job 2: runs every day (mo -th) and is set to do incremental backups (level 1 -  incremental - in the NDMP settings of the job)

 

Theresults look like this:

 


week 1:
Job 1 (Friday) runs ok with 700GB written to a B2D folder
Job 2 (Monday) runs ok with 50GB written to a B2D folder
Job 2 (Tuesday) runs ok with 52GB written to a B2D folder
Job 2 (Wednesday) runs ok with 52GB written to a B2D folder
Job 2 (Thursday) runs ok with 92GB written to a B2D folder
Job 1 (Friday) runs ok with 700GB written to a B2D folder
week 2:
Job 2 (Monday) runs ok with 97GB written to a B2D folder
Job 2 (Tuesday) runs ok with 115GB written to a B2D folder
Job 2 (Wednesday) runs ok with 116GB written to a B2D folder
Job 2 (Thursday) runs ok with 118GB written to a B2D folder
Job 1 (Friday) runs ok with 7000GB written to a B2D folder
week 3:
Job 2 (Monday) runs ok with 122GB written to a B2D folder
Job 2 (Tuesday) runs ok with 124GB written to a B2D folder
Job 2 (Wednesday) runs ok with 159GB written to a B2D folder
Job 2 (Thursday) runs ok with 264GB written to a B2D folder
Job 1 (Friday) runs ok with 700GB written to a B2D folder


so the problem is that the although Job1 runs fine the incremental Job is getting bigger every day.

Which setting in my jobs could be wrong.

Thanks in advance


 

2010
Backup and Recovery
Backup Exec
  • pkh's avatar
    pkh
    13 years ago

    Level 1 will backup all the new or modified files since the Level 0 (full) backup.  Since you kept using Level 1, you are effectively doing a differential rather than an incremental backup.  If you want to do an incremental backup you should do the following

    Fri - Level 0 (full backup0

    Mon - Level 1 (incr)

    Tue - Level 2 (incr)

    Wed - Level 3 (incr)

    .....

    See the backup method of the document below

    http://www.symantec.com/docs/HOWTO74004

  • walker_yang's avatar
    walker_yang
    Level 4
    13 years ago
    I know what Level 1 means. But for my environment, Level 1 backs up everything, which contains new or modified files since the last Level 0 backup, and contains the files that Level 0 backs up. Simply speaking, Level 1 is equal to Level 0, why this happens? I make some tests, and find out some interestring things: If the selection name in the job for Level 1 is not the same as Level 0, even if it exists the same backup objects, Level 1 may be equal to Level 0. 1 create a Level 0 backup job, select files to be backed up,eg:folder A, and set the selection name,eg:xxx 2 add new files to A. 3 create Level 1 backup job, select the files A. if set the selection name to xxx, so Level 1 is ok, but if set the different selection name, the result is that sometimes Level is ok, sometimes Level is equal to Level 0. That's what i find out. I think maybe it's a but in Backup Exec for 2010 R2.