comparison performance trouble shooting

[Franky Leeuwerck_2]

Hi,

I need to do some basic troubleshooting on an AIX OS. Is the approach comparable with HP-UX ? I mean, is there also a buffer cache that normally should be downtuned, etcetera ..

Franky

[siva0123 · Accepted solution]

Franky,

The concept has to be somewhat similar but may be there is some differences in the commands.

Start with the CPU performance and proceed towards , DISK i/o and then the memory followed by network and other application issues.

For cpu ,
probably topas will help you in AIX

For disk issues iostat should help

For diagnosing memory problem as ussual vmsat will help.

And netstat will help you in identifying network issues.


Thanks,
Siva

[Franky Leeuwerck_2]

Hi Siva,

Would you happen to know if there is also something like a dbc_max_pct ?

Franky

[jitendra_8]

Hello Franky

dbc_max_pct is a kernel parameter which defines percentage of memory to be used by dynamic buffer .

This link will help u ...

http://docs.hp.com/en/939/KCParms/KCparam.DBCmaxPct.html

cheers
jeet

[Franky Leeuwerck_2]

Hi Jeet,
I know about the parameter on hp-ux but I was wondering if a similar parm exists on AIX ?

Franky