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Full Discussion: Poor Performance of server
Operating Systems AIX Poor Performance of server Post 302596809 by zaxxon on Wednesday 8th of February 2012 10:21:57 AM
Old 02-08-2012
Killing processes to free resources is not a good idea. You might shoot something you still need.

Yes, from the look of it you have a severe bottleneck with your 1 hdisk. Is this hdisk a physical disk or a LUN from SAN storage?
Do you use asynchronous I/O (AIO) and have it tuned? Oracle will most probably benefit from it as well as getting additional disks.

nmon/topaz has a page that displays AIO stats, I think it was shift + a, not sure though, easy to try it out anyway.

You could post the output of
Code:
iostat -A 2 10
# and
vmstat -wt 2 10
# and
lsattr -El aio0

(the 1st 2 commands when there is traffic on your box) and use code tags when doing so, thanks.
 

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PMLOOKUPINDOM(3)					     Library Functions Manual						  PMLOOKUPINDOM(3)

NAME
pmLookupInDom - translate an instance name into an instance identifier C SYNOPSIS
#include <pcp/pmapi.h> int pmLookupInDom(pmInDom indom, const char *name); cc ... -lpcp DESCRIPTION
For the instance domain indom, in the current Performance Metrics Application Programming Interface (PMAPI) context, locate the instance with the external identification given by name, and return the internal instance identifier. Only the leading non-space characters of name will be used to identify the instance. The value for the instance domain indom is typically extracted from a pmDesc structure, following a call to pmLookupDesc(3) for a particu- lar performance metric. pmLookupInDom will return a positive instance identifier on success. SEE ALSO
PMAPI(3), pmGetConfig(3), pmGetInDom(3), pmLookupDesc(3), pmLookupInDomArchive(3), pmNameInDom(3), pcp.conf(5) and pcp.env(5). DIAGNOSTICS
PM_ERR_INDOM indom is not a valid instance domain identifier PM_ERR_INST The external instance name is not known for the instance domain indom in the current PMAPI context Performance Co-Pilot PCP PMLOOKUPINDOM(3)
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