Re: [Veritas-bu] poll: checkpoint restart

2010-09-29 10:16:44
Subject: Re: [Veritas-bu] poll: checkpoint restart
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
To: "Martin, Jonathan" <JMARTI05 AT intersil DOT com>
Date: Wed, 29 Sep 2010 10:16:39 -0400 (EDT)
On Wed, 29 Sep 2010, Martin, Jonathan wrote:

> We break our large datasets into multiple streams and restart that way.
> It's much easier for me to say to an app group "all of the backups
> finished except /lun7 and I'm rerunning that now" than "The backup is
> 80% complete and we're rerunning it from wherever it failed." For
> backups that run 48 hours, we just feel more comfortable knowing exactly
> what backups are complete and which directories can be restored from
> now, rather than hoping the whole thing completes later.
> -Jonathan
> -----Original Message-----


Has anyone done any benchmarks to see how much more capacity is used on tape
for a restore or how much additional time is consumed vs. not using it?

I think its a good thing, I am just wondering about the overhead.


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