Veritas-bu

Re: [Veritas-bu] Slow backups over 10Gb

2010-03-04 07:32:52
Subject: Re: [Veritas-bu] Slow backups over 10Gb
From: Justin Piszcz <jpiszcz AT lucidpixels DOT com>
To: WALLEBROEK Bart <Bart.WALLEBROEK AT swift DOT com>
Date: Thu, 4 Mar 2010 07:29:55 -0500 (EST)
Hi,

Show your network topology?
Also have read the 10Gbps tuning documents on the net?
Essentially you want to use jumbo frames if you want over 3gbps is what I read in one document.

Justin.

On Thu, 4 Mar 2010, WALLEBROEK Bart wrote:

I have some Unix systems that performed very well when backing up to a 1Gbit 
connected DSSU Media Server.  However when that Media Server NIC was upgraded to 
10Gbit the performance dropped dramatically (85 MB/sec > 40 KB/sec).  When I 
point these Unix systems back to another 1Gb Media Server then they are fast again.

Windows clients do not seem to have issues.

Is there any tuning / tweaking that needs to be done for Unix systems to 
perform well to backup to a 10Gbit (Windows) Media Server ?

Best Regards,
Bart WALLEBROEK
Backup Admin & Systems & Applications Management & Support Specialist 
S.W.I.F.T. SCRL
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