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Christian_Stein's avatar
12 years ago

NDMP Differential Backup on NetApp



i make backups from a netapp filer FAS2040 , NetApp Release 8.1.2 7 .

I make one full backup in 4 weeks, and one differential backup per day. The full backup has 6 TB on size.

The differential backup has on the day after full backup 20-30 GB, but is growing day by day.

On the end of month i have sometimes one terabytes of data in a differential backup for one day. This is not possible.

I use netbackup server 6.5.4. on solaris 10. I use ndmp over network (not direct write to tape).


I use NDMP also for sun/oracle open storage zfs box. Here is all ok.


Where can be the problem ?




Christian Steinborn

5 Replies