Re: AIX Paging Space Utilization
2004-09-20 09:48:55
Oh yeah: I've gotten this. what you want to do is have a look at
your virtual memory tunings with "vmtune". Of particular
interest are your "maxperm", "minperm", "numclient", and
"strict_maxperm" settings. Remember that, all TSM is, is a
DB2 database, so you need to tune your VMM subsystem accordingly.
Without going intro a long, boring discussion, try this:
1) Maxperm = 40%
2) Minperm = 10%
3) Maxclient = 20%
4) Strict_Maxperm = 1
What these settings basically do is to free up real memory,
and dramatically cut down on paging; you can take both the
minperm and maxperm values down to near zero, if you're
in a severely memory constrained system.
--Mark
-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Miles Purdy
Sent: Monday, September 20, 2004 9:04 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: AIX Paging Space Utilization
I have also seen paging space issues my server that runs only TSM.
OS: AIX 5.1 ML 6
TSM server: 5.1 and 5.2.3.1
Memory: 2GB
Space: 2 GB (now 3 GB)
We have logged cases with IBM, to no avail. I have check all the settings
myself. IBM has checked everything and found no problems. I'd also be
interested in any help.
Miles
>>> Curtis.Stewart AT LAWSON DOT COM 16-Sep-04 4:51:20 PM >>>
I'm running into issues with paging space utilization on my AIX based TSM
system.
Host OS AIX 5.2
TSM Version 5.2.2.3
Physical Memory 12GB
Dual CPU P630
TSM Database 1 36.6GB
TSM Database 2 59.7GB
I have two TSM instances running on the same box and recently (after a reboot)
I've seen the paging space utilization increase dramatically. I've gotten to
the point where I have to stop one of the instances of TSM and let the system
recover paging space, then restart TSM. Anyone have any tips? I do think I may
have my bufpoolsize settings a little high, at 1GB for each instance. I haven't
experimented with lowering these settings. My cache hit is 99% consistently.
TSM Options: See Attached File (options.txt)
AIX Memory Settings: See Attached File (memsettings.txt)
Curtis Stewart
curtis.stewart AT lawson DOT com
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- Re: AIX Paging Space Utilization, PINNI, BALANAND (SBCSI)
- Re: AIX Paging Space Utilization, Richard Sims
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- Re: AIX Paging Space Utilization, Richard Mochnaczewski
- Re: AIX Paging Space Utilization, Miles Purdy
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Ray, Mark <=
- Re: AIX Paging Space Utilization, Miles Purdy
- Re: AIX Paging Space Utilization, Ray, Mark
- Re: AIX Paging Space Utilization, Tab Trepagnier
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