performance problems

[andyraff]

I have a h70 rs6000 running Aix 4.3.
Sometimes hdsisk0 %tm_act is at 100% which decreases performance. Is there any way that i can find out what is causing this ???

 

[PSD]

Andy,

Check out the filemon command - this is useful is identifying I/O hotspots.

Any more help required please let me know.

Cheers

PSD
HACMP Specialist

 

[MikeLacey]

PSD -- I don't have the filemon command, is it standard? Mike
michael.j.lacey@ntlworld.com
Email welcome if you're in a hurry or something -- but post in tek-tips as well please, and I will post my reply here as well.

 

[aixqueen]

In 4.3.3 filemon is in perfagent.tools

#which_fileset filemon
/usr/bin/filemon perfagent.tools 2.2.33.0

http://www.rs6000.ibm.com/doc_link/en_US/a_doc_lib/cmds/aixcmds2/filemon.htm

http://www.rs6000.ibm.com/doc_link/en_US/a_doc_lib/aixbman/prftungd/2365ch8.htm

Hope this helps....

 

[MikeLacey]

thx Mike
michael.j.lacey@ntlworld.com
Email welcome if you're in a hurry or something -- but post in tek-tips as well please, and I will post my reply here as well.