What about snapshots and BLIB (block level incremental backups). I've not
used them (hope to soon), but the theory is intriquing as it has a very
small data footprint and rapid recovery, among other things...

For official email, please respond to cgbrewer AT kpmg DOT com

Chris Brewer
UNIX Systems Consultant
Rocky Mountain Broadband Solution Center
KPMG Consulting, Inc.
6399 S. Fiddler's Green Circle #400
Greenwood Village, CO 80104

720-493-7992



-----Original Message-----
From: Rick Keahey [mailto:rickkeahey AT hotmail DOT com] 
Sent: Wednesday, March 06, 2002 2:53 PM
To: joe AT joe DOT net
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Disk to Disk Backups


Ok, so here is my delima.  I have more and more customers coming to me 
saying that they have a database that is mission critical and if it goes 
down, they need to be able to restore it very quickly, within minutes or few

hours.  The problem is that these databases are expected to grow to several 
terabytes in the next year or so.  Backups alone will take forever, but the 
restores will be ugly.  We are using DLT's right now and are just starting 
to use SDLT's.  I use NetBackup for backups software and do not have the 
option to change off of that.  Disk base is really the only choice that I 
have to look at from here, although I am not against looking at some other 
means that will speed things up.

Thanks,
Rick


>From: Johnny Oestergaard <joe AT joe DOT net>
>To: "Rick Keahey" <rickkeahey AT hotmail DOT com>
>CC: veritas-bu AT mailman.eng.auburn DOT edu
>Subject: Re: [Veritas-bu] Disk to Disk Backups
>Date: Wed, 06 Mar 2002 22:11:09 +0100
>
>We have tried to do diskbackups to see if it's faster, but what we have 
>seen is that is't faster to use tapes. Our disksubsystem is a STK 
>SVA9500 and the tapedrives are STK 9940 all using FC
>But if you use DLT it could be that it's faster to disk.
>
>I know about sites where they use STK VSM systems and that should be 
>fast, but I have never tried that.
>
>/johnny
>
>At 11:34 06-03-2002 -0800, you wrote:
>>I am researching different ways to do disk to disk backups for faster 
>>backup and restore times.  Does anyone have any suggested hardware 
>>platforms to do this on.  I know that ATL just announced a new 
>>solution called the DX-30, but wanted to see if anyone else out there 
>>knew of anything else that works as good.  Appreciate your input.
>>
>>Thanks,
>>Rick
>>
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