Veritas-bu

[Veritas-bu] NetApp CIFS backup

2003-04-11 03:27:56
Subject: [Veritas-bu] NetApp CIFS backup
From: Andreas.Hohmann AT diwega DOT ch (Andreas Hohmann)
Date: Fri, 11 Apr 2003 09:27:56 +0200
Hello

Yesterday I posted the following problem:

>> NBU 4.5 (MP3) on W2K, NetApp backed up via cifs share (no ndmp),

>> Last week at a customer site we migrated the data from one NetApp filer to 
>> another with snapmirror (on qtree).

>> Since then the incremental backup writes the same amount of data from this 
>> new filer to tape as a full does. This       >> happens only on this 
>> migrated qtrees.

I found a workaround by doing an incremental NTBACKUP on that data. After that 
Veritas behaves as it should, i.e. fullbackup writes everything to tape, 
incremental backup only the changes.

I assume that NTBACKUP corrects/sets a bit in the cifs mounted filesystem that 
NetBackup relies on to decide whether full or incremental has to be done. 

Maybe somebody out there (Veritas?) has a clue or an explanation for thish 
behaviour?

Thanks & regards

Andreas Hohmann

Diwega GmbH
Birmensdorferstr. 24
CH-8902 Urdorf

Tel.  +41- (0)1 734 6644
Fax. +41- (0)1 734 6645
mailto:andreas.hohmann AT diwega DOT ch
http://www.diwega.ch


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