[Veritas-bu] VCB vs Netbackup VCB Integrated

Subject:	[Veritas-bu] VCB vs Netbackup VCB Integrated
From:	"Leidy, Jason D" <Leidy.Jason AT con-way DOT com>
To:	"veritas-bu AT mailman.eng.auburn DOT edu" <veritas-bu AT mailman.eng.auburn DOT edu>
Date:	Fri, 30 Jan 2009 12:32:33 -0800

Folks,

We recently attempted to move from VCB backups to "Netbackup VCB Integrated" for our ESX environment. We ran into a lot of contention issues, specifically with snapshots errors. Do VCB and "Netbackup VCB Integrated" use the same snapshot mechanism, I was under the impression that Netbackup VCB Integrated simply piggy backs off of what VCB uses? Many of these snapshot errors are in fact contention on the luns. We are just trying to determine why, if we use VCB, we don't have snapshot issues. We aren't running fewer backups in parallel in when using VCB vs Netbackup VCB Integrated, so we can rule that out. If VCB uses a different snapshot mechanism\technology than "Netbackup VCBi"…..then maybe that is a good starting point for trouble-shooting.

Jason

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