Veritas-bu

Checkpoint Restart (Was RE: [Veritas-bu] only allow the backup t o run in the backup window)

2005-08-15 00:56:17
Subject: Checkpoint Restart (Was RE: [Veritas-bu] only allow the backup t o run in the backup window)
From: David Rock <dave-bu AT graniteweb DOT com> (David Rock)
Date: Sun, 14 Aug 2005 23:56:17 -0500
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* Dellaripa, Rich <rich.dellaripa AT cingular DOT com> [2005-08-14 21:59]:
> This reminded me of something I've been wondering about for a while; does
> checkpoint=20
> restart on backups introduce any sort of noticable performance penalty? I
> know there
> must be some overhead and probably more for to tape than to disk, but I'm
> wondering
> if turning it on should be an automatic "Best Practice" or not.

I can't imagine that it impacts all that much. We normally have 2G
fragments defined already and that's not a big deal. Isn't the default
on checkpoints every 15 minutes? For us, that would normally be several
fragments per checkpoint, which wouldn't slow down much.

--=20
David Rock
david AT graniteweb DOT com

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