Re: [Veritas-bu] ESL Poor LAN Performance

2013-11-19 10:06:32
Subject: Re: [Veritas-bu] ESL Poor LAN Performance
From: Simon Weaver <Simon.Weaver AT iscl DOT net>
To: Rusty Major <rusty.major AT sungard DOT com>, Patrick Whelan <Patrick_Whelan AT symantec DOT com>
Date: Tue, 19 Nov 2013 15:06:22 +0000
I am referring to doing a backup over the Local Area Network to either the LTO4 or LTO5 drive via a Media Server.

The only thing SAN Attached is the Media Server to the LTO4 and LTO5 library.

One client is in the same room as the Media Server and backups to the LTO5 is bad. Yet going through all the diagnostics on the HP ESL show nothing.
For now, I have reverted back to the LTO4, where speeds are great!

But it makes ZERO sense. I do feel it is comms related, but it is trying to prove that.

From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [veritas-bu-bounces AT mailman.eng.auburn DOT edu] on behalf of Rusty Major [rusty.major AT sungard DOT com]
Sent: 19 November 2013 14:37
To: Patrick Whelan
Cc: VERITAS-BU AT mailman.eng.auburn DOT edu; Simon Weaver
Subject: Re: [Veritas-bu] ESL Poor LAN Performance

I assume he means a normal backup over the network, versus a FT or SAN Media Server backup.

I would suggest looking at the drive it was using and seeing if there is something wrong there. Maybe shut that one down to see if it has an issue.

On Tue, Nov 19, 2013 at 8:00 AM, Patrick Whelan <Patrick_Whelan AT symantec DOT com> wrote:

You’ve lost me. What do you mean by over the LAN? What is difference between the two policies?


Many regards,


Pat Whelan

Principal Remote Product Specialist - NBU
Business Critical Services
Symantec Corporation


Mobile: +44(0) 771 492 3085 (Preferred)

Office: +44(0) 118 943 6715

Email: patrick_whelan AT symantec DOT com


Description: cid:image001.gif@01C95F60.3A312C10





From: veritas-bu-bounces AT mailman.eng.auburn DOT edu [mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Simon Weaver
Sent: 19 November 2013 13:50
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] ESL Poor LAN Performance


Feel like my second home at the mo....

I have a crazy situation here, so wonder if anyone with HP G3 ESL experience can help.


7.5 environment, separate Media Server that can backup to LTO4 Library and new ESL Library.


Problem. Backups over the LAN throughput is really bad going to the LTO5 Library.


To give you an idea, 20 hours to backup 100GB.

I cancel the job, revert backup policy to the LTO4 library, same media server and backups of the same capacity done in 2 hours.


I have gone through all settings on the ESL, cannot see anything, found nothing to research, but I cannot sustain this sort of throughput!


Yet, I cannot quite understand why this is happening.

Any ideas welcome!


Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu

Rusty Major ▪ Technical Architect and Team Lead - Backup Infrastructure Engineering ▪ Sungard Availability Services ▪ 757 N. Eldridge Pkwy., Suite 200, Houston, TX 77079 ▪ 281-584-4693 ▪ Cell 713-724-4914 ▪ rusty.major AT sungard DOT com
Think before you Print 
CONFIDENTIALITY:  This e-mail (including any attachments) may contain confidential, proprietary and privileged information, and unauthorized disclosure or use is prohibited.  If you received this e-mail in error, please notify the sender and delete this e-mail from your system.
Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu