“Performance” is a tricky word
here. If you never have issues during your backups then “performance”
is worse for checkpoint backups. However if you have any issue say 5 hours
into a long backup for a database your end to end “performance” is better
because you don’t have to redo the 5 hours. Assuming your backups are
going to tape and you can’t rerun a backup in the same window (e.g. your
backup for a 4 TB DB BCV takes 18 hours) then checkpoint is definitely the way
to go. If however you are doing a 30 minute OS backup (without DB/application
directories) checkpoint likely won’t save you much.
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Kevin Whittaker
Sent: Monday, July 09, 2007 9:41
AM
To: David McWilliams; NetBackup
List
Subject: Re: [Veritas-bu]
Checkpoint
Of course it does. Every checkpoint
requires that netbackup stop and put a marker out there. IF I use
checkpoint, I only will use 15 mins as the smallest number.
From:
veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of David McWilliams
Sent: Monday, July 09, 2007 9:17
AM
To: NetBackup List
Subject: [Veritas-bu] Checkpoint
Does increasing the frequency of checkpoints affect backup performance?
Sláinte,
David
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