Paul,

Have you tried other backup methods and found they don't impact
performance? Maybe you could try using one of the applications listed here
http://www.sun.com/bigadmin/content/submitted/backup_recovery.html and see
if the performance impact is less than with TSM. I suspect it won't be. If
the native backup applications cause the same issues as the TSM backup,
I'd say it's time for more resources. If not, then TSM tuning might be in
order.

curtis





Paul Zarnowski <psz1 AT CORNELL DOT EDU>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
04/26/2005 09:52 AM
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"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>


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Subject
Re: TSM causing client disk contention






At 07:33 PM 4/25/2005, Coats, Jack wrote:
>Our solutions:
>* Start backups when users have supposedly gone home.

Thanks for the suggestions so far.  I should have mentioned that this is
for an application server who's performance is important 24x7.  We do
already schedule during off-peak, but even so the performance degradation
caused by the TSM backup is noticed and is perceived as a problem.

..Paul


--
Paul Zarnowski                         Ph: 607-255-4757
719 Rhodes Hall, Cornell University    Fx: 607-255-8521
Ithaca, NY 14853-3801                  Em: psz1 AT cornell DOT edu