Re: [Veritas-bu] D2D or Tape Libraries

Rusty

Different EVA, but the EVA I have a 4TB Disk presented to does have other systems attached!

Problem I see with EVA is that its not really a "physical" disk its backing up to! Its virtual.... a Volume made up of any disk. Its a large LUN I guess

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Rusty.Major AT sungard DOT com
Sent: Monday, October 11, 2010 8:31 PM
To: WEAVER, Simon (external)
Cc: wts AT maine DOT edu; veritas-bu-bounces AT mailman.eng.auburn DOT edu; Lightner,Jeff; veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] D2D or Tape Libraries

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 ▪ 281-584-4693
Keeping People and Information Connected® ▪ http://availability.sungard.com/
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"WEAVER, Simon (external)" <simon.weaver AT astrium.eads DOT net>
Sent by: <veritas-bu-bounces AT mailman.eng.auburn DOT edu>

10/11/2010 09:45 AM

To	"Lightner, Jeff" <jlightner AT water DOT com>, <judy_hinchcliffe AT administaff DOT com>, <wts AT maine DOT edu>, <veritas-bu AT mailman.eng.auburn DOT 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 DOT com]
Sent: Monday, October 11, 2010 1:51 PM
To: WEAVER, Simon (external); judy_hinchcliffe AT administaff DOT com; wts AT maine DOT edu; veritas-bu AT mailman.eng.auburn DOT 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 DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of WEAVER, Simon (external)
Sent: Monday, October 11, 2010 5:11 AM
To: judy_hinchcliffe AT administaff DOT com; wts AT maine DOT edu; veritas-bu AT mailman.eng.auburn DOT 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 DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of judy_hinchcliffe AT administaff DOT com
Sent: Friday, October 08, 2010 5:07 PM
To: wts AT maine DOT edu; veritas-bu AT mailman.eng.auburn DOT 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 DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Wayne T Smith
Sent: Friday, October 08, 2010 10:36 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] D2D or Tape Libraries
On Fri, Oct 8, 2010 at 10:49 AM, <Rusty.Major AT sungard DOT 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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