Re: [Veritas-bu] In-File Delta Technology
2009-06-08 09:17:26
NetBackup is essentially doing file level backups rather than block level so it
can't do the in file delta. If you have a need for doing that then you should
look at the data deduplication technology out there such as Data Domain, Avomar
and others. If you look through the archives you'll see a fair amount of
discussion of these including a thread just a week or so ago.
-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Jorge
Fábregas
Sent: Saturday, June 06, 2009 3:21 PM
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] In-File Delta Technology
Hello everyone,
I'm still learning Netbackup (got around 1.5 years working with it) and I'm
wondering... Is there a way to perform incremental backups using in-file
delta technology (backup only changes within a file)? I've seen a lot of
features/options for Netbackup but I have never seen this...If indeed there
isn't ...why isn't this type of ESSENTIAL technology part of Netbackup?
Just as an aside, I recently started backing up a server that runs "MS Virtual
Server" that has around 9 guests...I back them up at night (obviously after
shutting down the guests) and I know 5 of those 9 guests seldomly change but
as you can imagine...because the timestamp on the virtual-hard-disks
change ...they're backed up COMPLETELY. The end result: I'm almost
performing a FULL backup every day even though it's an incremental
schedule :(
I'll appreciate your feedback.
Thanks!
All the best,
Jorge
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