From: Harish Hirani (Harish.Hirani@T-MOBILE.CO.UK)
Date: Wed Feb 05 2003 - 12:05:24 EST
Thanks for the info.
I trying to compile report for WLM and I need the info, I am not going to
implement yet until I have found the all the necessary facts of WLM.
where is best place for info to search.
Also Is there anyway we can power ON and OFF Pseries box remotley (p610 or
p660) with console access only.
Thanks
Harish
-----Original Message-----
From: Holger.VanKoll@swisscom.com [mailto:Holger.VanKoll@swisscom.com]
Sent: Wednesday, February 05, 2003 3:49 PM
To: aix-l@princeton.edu
Subject: Re: WLM (work Load Manager)
some 5.1 features went in 4.3.3 ML08, but some useful ones are missing
@4.3.3-08 (passive mode, managing io usage, hard limits)
I can second it can get quite complicated
always start with shares only. if that isnt enough, add limits, then hard
limits
and (as with performance tuning): one small change, watch the system again,
if its not better undo the change
again: careful with limits! f.e. too hard memory-limits might make a system
swap when there is unused memory (in other classes)
-----Original Message-----
From: Green, Simon [mailto:Simon.Green@EU.ALTRIA.COM]
Sent: Wednesday, February 05, 2003 4:32 PM
To: aix-l@Princeton.EDU
Subject: Re: WLM (work Load Manager)
We haven't done a report, but we use it on some systems. They're 4.3.3, but
it's the same: all the extra bits of WLM for 5.1 were retro-fitted to 4.3.3
with ML06, (or was it 08?).
At a basic level, it's quite simple to configure. If you wanted to you
could make it very complicated, though. It really depends on what you want
to achieve.
Recommendations from the course I went on and various other sources are to
keep it simple: just do the basics and let WLM do its job.
It's hard to consider advantages and disadvantages unless one knows what
you're comparing it with.
Why do you want to use it?
There are two general advantages.
1. Allows you to obtain acceptable throughput for multiple workloads with
less outlay on server hardware.
2. Helps you deal with systems which have occasional very high peak loads.
The only disadvantage is that someone's got to support it. Oh; and I
suppose you should consider that if someone makes a real hash of it they
could make things worse.
Simon Green
Altria ITSC Europe s.a.r.l.
AIX-L Archive at http://marc.theaimsgroup.com/?l=aix-l
<http://marc.theaimsgroup.com/?l=aix-l&r=1&w=2> &r=1&w=2
AIX FAQ at http://www.faqs.org/faqs/aix-faq/
<http://www.faqs.org/faqs/aix-faq/>
N.B. Unsolicited email from vendors will seldom be appreciated.
-----Original Message-----
From: Harish Hirani [mailto:Harish.Hirani@T-MOBILE.CO.UK]
Sent: 05 February 2003 14:53
To: aix-l@Princeton.EDU
Subject: WLM (work Load Manager)
Hi,
Has any one compiled some sort of report on Work Load manager (WLM) on AIX
5.1, As I am looking at WLM on AIX
I am trying to find out advantages and disadvantages of work load manager
and how difficult is to configure.
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