[Veritas-bu] D2D or Tape Libraries

[Rusty.Major at sungard.com]

You're probably running into disk IO issues with all of the other data. 
Are you reading the data off the same EVA array that you are writing it 
to?

Rusty Major, MCSE, BCFP, VCS ▪ Sr. Storage Engineer ▪ SunGard 
Availability Services ▪ 757 N. Eldridge Suite 200, Houston TX 77079 ▪ 
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"WEAVER, Simon (external)" <simon.weaver at astrium.eads.net> 
Sent by: <veritas-bu-bounces at mailman.eng.auburn.edu>
10/11/2010 09:45 AM

To
"Lightner, Jeff" <jlightner at water.com>, 
<judy_hinchcliffe at administaff.com>, <wts at maine.edu>, 
<veritas-bu at mailman.eng.auburn.edu>
cc

Subject
Re: [Veritas-bu] D2D or Tape Libraries






LTO4 drives/Tapes
Disks are vdisks from eva6400 - 4TB Volume RAID5 setup.
HP EVA is an enterprise array Solution. Many systems SAN attached fibre.
S.

From: Lightner, Jeff [mailto:jlightner at water.com] 
Sent: Monday, October 11, 2010 1:51 PM
To: WEAVER, Simon (external); judy_hinchcliffe at administaff.com; 
wts at maine.edu; veritas-bu at mailman.eng.auburn.edu
Subject: RE: [Veritas-bu] D2D or Tape Libraries

It would depend a lot on what your “disk”(s)  and “tape”(s) are.   We 
typically see much faster backup to Data Domain than to Ultrium Tape.
Is your target “disk” part of the server itself?  Externally attached 
storage?   SAN?  NAS?  iSCSI?   ATA drives? Fibre drives?  SSD Drives? Is 
it JBOD?  RAID1?  RAID5?  RAID10?   Are you doing dedupe?  If so is it at 
the server or at the target? 

From: veritas-bu-bounces at mailman.eng.auburn.edu 
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of WEAVER, 
Simon (external)
Sent: Monday, October 11, 2010 5:11 AM
To: judy_hinchcliffe at administaff.com; wts at maine.edu; 
veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] D2D or Tape Libraries
I ran a test backup to Disk and found that the backup took over 7 hours. 
when running the same backup to tape, it took 5 hours!
The files was a mixture of small profile type files and folders.
So not too impressed with the speed. Unless some tuning can be done ?

From: veritas-bu-bounces at mailman.eng.auburn.edu 
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of 
judy_hinchcliffe at administaff.com
Sent: Friday, October 08, 2010 5:07 PM
To: wts at maine.edu; veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] D2D or Tape Libraries
Watching this thread I have to put in my 2 cents.
One of the key points is having to have copies offsite.
So our search of de-dup has to include replication to the dr site where we 
have a live master, and we need to be able to mount that replicated copy 
on to that master to be able to do restores.
From: veritas-bu-bounces at mailman.eng.auburn.edu 
[mailto:veritas-bu-bounces at mailman.eng.auburn.edu] On Behalf Of Wayne T 
Smith
Sent: Friday, October 08, 2010 10:36 AM
To: veritas-bu at mailman.eng.auburn.edu
Subject: Re: [Veritas-bu] D2D or Tape Libraries
On Fri, Oct 8, 2010 at 10:49 AM, <Rusty.Major at sungard.com> wrote, in part:
...
This would be a very good time for you to investigate utilizing client 
side de-dupe, Pure Disk, Media Server De-Dupe, one of the NBU appliances 
(which have storage built in), or a Data Domain. 
...
or a Quantum ;-)
Cheers, Wayne 

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