ADSM-L

Re: TSM 5.3 Performance Tuning

2006-10-25 11:56:05
Subject: Re: TSM 5.3 Performance Tuning
From: Ben Bullock <bbullock AT MICRON DOT COM>
To: ADSM-L AT VM.MARIST DOT EDU
Date: Wed, 25 Oct 2006 09:49:13 -0600
        Hmm, I just got this information from our IBM business partner.
Looks like a good presentation on how to configure and monitor an AIX
5.3 system for performance:


-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- 

Jaqui Lynch authored and delivered the "AIX Performance
Tuning" session at last month's Technical University
conference. Download her presentation from:

http://www.circle4.com/papers/pseries-a26-aug06.pdf

These tuning parameters are rules-of-thumb for general
commercial applications. Your mileage may vary.

no -p -o rfc1323=1
no -p -o sb_max=1310720
no -p -o tcp_sendspace=262144
no -p -o tcp_recvspace=262144
no -p -o udp_sendspace=65536
no -p -o udp_recvspace=655360
nfso -p -o nfs_rfc1323=1
nfso -p -o nfs_socketsize=60000
nfso -p -o nfs_tcp_socketsize=600000
vmo -p -o minperm%=5
vmo -p -o minfree=960
vmo -p -o maxfree=1088
vmo -p -o lru_file_repage=0
vmo -p -o lru_poll_interval=10
ioo -p -o j2_maxPageReadAhead=128
ioo -p -o maxpgahead=16
ioo -p -o j2_maxRandomWrite=32
ioo -p -o maxrandwrt=32
ioo -p -o j2_nBufferPerPagerDevice=1024
ioo -p -o pv_min_pbuf=1024
ioo -p -o numfsbufs=2048
ioo -p -o j2_nPagesPerWriteBehindCluster=32

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- 

Ben
Micron Technology Inc.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
BEYERS Kurt
Sent: Wednesday, October 25, 2006 9:42 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: TSM 5.3 Performance Tuning

David,
 
Following setings for minperm/maxperm (minclient / maxclient in AIX5.3)
were recommended today on a TSM training: 10 / 30
 
So although the name changed, the values compare well to the 10 / 40 you
mention.
 
best regards,
Kurt

________________________________

Van: ADSM: Dist Stor Manager namens David E Ehresman
Verzonden: wo 25/10/2006 15:46
Aan: ADSM-L AT VM.MARIST DOT EDU
Onderwerp: Re: [ADSM-L] TSM 5.3 Performance Tuning



Thanks.  That is what I was looking for but it did not contain what I
wanted.

A few years ago, when I was on AIX 5.1, there was discussion on this
list about vmtune, now vmo, maxperm and minperm settings to improve TSM
performance on AIX systems.  Is there any IBM publications that makes
recommendations for these settings?  Are the settings we discussed in
AIX 5.1 days, i.e. maxperm=40, minperm=10, still valid for an AIX 5.3,
TSM 5.3 system?

David

>>> "Prather, Wanda" <Wanda.Prather AT JHUAPL DOT EDU> 10/24/2006 11:19 AM
>>>
The Perf Tuning guide isn't platform specific.
Go back to the Information Center, its under the very long link for
Storage Manager Messages, Problem Determination, and Performance Tuning.


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
David E Ehresman
Sent: Tuesday, October 24, 2006 11:08 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: TSM 5.3 Performance Tuning

Is there a TSM 5.3 Performance Tuning guide (for AIX 5.3)?  I can't seem
to find one in the IBM Tivoli Information Center.

David


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