We are looking to phase out tape or most of it in the near future and
move to more disk based backups and then using ILM or HSM to move data
from higher end storage to lower end storage and then to tape (if
needed) for long term storage. We have been looking a EMC and
Falconstore. With EMC we will use new disks based on their module with
Falconstore we will reuse some older disk storage array that we going to
be removed. But the thinking now is to install a VTL with Falconstore
and use our old Hitachi storage as the backup storage. Money Is not a
issue here. What is the issue is that it must be easy to manage, and if
needed, be able to be reused if we decide to move away form VTL in the
future and not be stuck with something we cant use.  


 
Greg
 
 

-----Original Message-----
From: veritas-bu-admin AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of
william.d.brown AT gsk DOT com
Sent: Wednesday, November 30, 2005 5:07 PM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] VTL vs. Disk based backups

I think you have got to tell us a bit more about the issue you are
trying to address.

Are you looking to get rid of tape altogether?   Or are you looking at 
alternatives as a primary backup, with a tape as secondary offsite copy?

Could you use the ability of FalconStor and NetApps to clone data
cross-site, do you have the WAN bandwidth, or do you have just one site?

Are you just trying to fix slow clients?

What kind of DR do you have to provide? - e.g you may absolutely need
tapes ready to send to a DR site, with picking lists per application to
suit your recovery priorities.

Is EMC including Clariion or would using the EMC CDL mean supporting
another disk array type?

Do your NetApps have SnapMirror/SnapVault/OSSV?

Do you have loads to spend? (you don't have to answer that...)

-----
People who do this (and we don't...yet) have very different ways even of
using VTLs.  As Charles pointed out, NetApp and NBU 6 are designed to do
some cool things.

William D L Brown




"Hindle, Greg" <Greg.Hindle AT constellation DOT com> Sent by:
veritas-bu-admin AT mailman.eng.auburn DOT edu
30-Nov-2005 20:13
 
To
veritas-bu AT mailman.eng.auburn DOT edu
cc

Subject
[Veritas-bu] VTL vs. Disk based backups






We are looking at VTL technologies with EMC being the front leader. We
are looking at upgrading to netbackup 6.0 Solaris 10 soon. My backup
partner in crime disagree with the direction we should go. I think we
should go with disk based backups and my partner want to go with VTL.
Now since we do not have this in yet it is hard to look at both and
"see" what is better. SO has anyone here also researching this subject
and have their own opinion? We are a Netapp/EMC shop so the back disk is
not the show stopper but the future of both technologies. Any care to
share their views? 
  
Greg 
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>>> This e-mail and any attachments are confidential, may contain legal, 
>>> professional or other privileged information, and are intended solely for 
>>> the addressee.  If you are not the intended recipient, do not use the 
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>>> sender. CEG-IP1