ADSM-L

Re: [ADSM-L] Win2K3 backup performance

2008-02-01 10:50:59
Subject: Re: [ADSM-L] Win2K3 backup performance
From: Richard Rhodes <rrhodes AT FIRSTENERGYCORP DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Fri, 1 Feb 2008 10:30:55 -0500
Also, are you sure you can read the data off of disks any faster?
I'm not sure what the equivalent cmd would be on Windows, but on Unix
I'd try a   "dd if=<file> of=/dev/null bs=128k"  (or some variant) and see
just
how fast the data can be read from the drives.

Rick






             "Allen S. Rout"
             <asr AT UFL DOT EDU>
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                                       Re: Win2K3 backup performance

             02/01/2008 09:57
             AM


             Please respond to
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>> On Thu, 31 Jan 2008 17:39:49 -0800, Larry Peifer <Larry.Peifer AT SCE DOT 
>> COM>
said:


> The fastest backup I can get from a Win2003 server, TSM 5.4.0.4 client,
to
> an AIX TSM server, 5.4.0.0 is 17Mb/sec. over GigE with a dedicated 2nd
nic
> for backup only.  I'd like to hear from others who are getting better
> speeds and what tuning can be done.  That's 3000 files averaging 100Mb
> each so it takes about 4.5 hours to transfer about 300 Gig.


May be obvious, but have you ruled out throughput bottleneck on the
TSM server?

Are you writing to a contested disk pool, etc?

Or if it's tape, are you in a sour spot w.r.t. streaming, perhaps
shoeshining?


- Allen S. Rout


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