You got a PM how to post urgent questions in the future.
It looks like Paging Space was full and so there has been some killing so that memory could be freed. After reboot you have only some time until this happens again.
To prevent this for the future please post following info along the output of following commands:
The errpt entries with LVM_SA_STALEPP could point to some problem with mirrored LV copies. Maybe check with lsvg <vgname> if your VGs still have some stale partitions and try fixing it with syncvg.
If I saw right, you did not tell what kind of application is running on it.
Of course after a reboot there is not much to see in the output I asked for but you can remember them for next days after the box has seen some more traffic again.
Code:
lsps -a
will start to increase in the %Used column. When it is close to 100% same will happen as just did.
So here is a try for an initial tuning to prevent this situation:
Code:
vmo -p -o minperm%=5 -o lru_file_repage=0
This can be done online and does not need a reboot or something. The sooner you issue this command after you had to reboot, the better.
It could be that the shown problem will never happen again, but it can also be that it just takes more time until it is back.
To ensure a better tuning you might want to have a look at the vmstat columns pi and po since they represent reading from and writing to Paging Space which should be prevent by at all costs. If you see them and are unsure you can also send the output of a vmstat -vs any time here in this thread so people can have a look.
In this AIX box are running WAS( Websphere Application Server), java, and another AIX Process, actually I don't really sure about all process running.
a part of process screen shot :
It looks like there is also a DB2 database running on it. The vmo command I have given should be ok for the memory problem for now. There can be for sure several other things be investigated to get more performance out of this box and it's apps. There are some threads here in this forum about performance and many Redbooks and articles etc. available if you are interessted in it.
I am very concerned about the two entries in the errpt:
Code:
LABEL: EPOW_SUS_CHRP
Date/Time: Thu Aug 12 18:06:15 THAIST 2010
Type: PERM
Resource Name: sysplanar0
Description
ENVIRONMENTAL PROBLEM
Detail Data
POWER STATUS REGISTER
0000 0003
PROBLEM DATA
......................................
---------------------------------------------------------------------------
LABEL: SCAN_ERROR_CHRP
Date/Time: Tue Aug 10 21:23:39 THAIST 2010
Type: PERM
Resource Name: sysplanar0
Description
UNDETERMINED ERROR
Detail Data
PROBLEM DATA
0644 00E2 0000 01B8 ...........................
Diagnostic Analysis
Diagnostic Log sequence number: 58
Resource tested: sysplanar0
Menu Number: 651303
Description:
The following informational event was reported by Platform Firmware.
CEC hardware System resources deconfigured by system due to prior error event.
Supporting data:
SRC: B150FD01
Additional Words: 2-020030F0 3-28D90110 4-C100901B 5-000000FF
6-00000001 7-00000000 8-00000000 9-00000000
maybe your hardware + firmware always gives this message?
If not, run the diagnostics for this hardware.
Error descriptionMemory page resource deconfiguration events reported to AIX by
system firmware (for version 6 error logs) are currently
logged in the SCAN_ERROR_CHRP error template. The memory page
is guarded out by AIX automatically requiring no user action.
The SCAN_ERROR_CHRP template is too alarming for this type of
event.
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08-13-2010
