ADSM-L

Re: Restore Throughput

2000-12-18 14:19:44
Subject: Re: Restore Throughput
From: Mearl Danner <jmdanner AT SAMFORD DOT EDU>
Date: Mon, 18 Dec 2000 13:19:54 -0600
Last we did was two years ago. This was shortly after we started uing ADSM so
the data on the tapes was not very fragmented.

Netware 4.11 on a Compaq 2500 with an Adaptec 2944 attached to EMC external
array. The client was 3.1 and also the server (running on an RS6000 - 7011 I
believe, and 8mm drives).

We restored 18 gig in about 6 hours to newly configured drives.

We've recently migrated to a 3.7 server (RS6000-7043, with STK 9840's). We get
over 4 gig per hour on backups wit 3.7 clients.



On Mon, 18 Dec 2000 13:53:54 -0500 Louis Wiesemann <ljwies01 AT LOUISVILLE DOT 
EDU>
wrote:

> I'm just looking for any guesstimates anyone might have for the throughput we
might "expect" to see restoring a Netware 3.1.08 client with a TSM 3.7.3.0
OS/390 server.  This is over a 100M ethernet with 3490 tape robot on the
server.  We have split the restore up over 4 sessions and have disabled any
other TSM processing while we run the restore.
>
> We are seeing about 1.2G an hour actual data being restored.  Can anyone say
whether this is about what we should expect?  I have been in contact with
Tivoli and tuned the client and server options per their instructions.  I was
wondering if anyone had any idea if this seems a reasonable rate.
>
> Thanks for any input.
>
>
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>
>
> Louis J. Wiesemann                                             502-852-8952
>
>
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-----------------------------------------
Mearl Danner
Mearl Danner
Data Communications/Network Specialist
Email: jmdanner AT samford DOT edu
Samford University
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