10-31-2012
AIX 7.1 high page faults
hi guys i hope you can help me with this situation.
i have 2 lpar with aix 7.1 and oracle 11gr2 in grid mode.
when i start nmon to check the current system health i notice that page fault are over 3000/s. than i have opened a case with ibm and they say that the problem is not paging nor pinning nor memory but heavy i/o on disks from an application.
infact i have 30% of free memory and 0.3% of page space used and 16,7& of pinned memory.
now i thinks oracle arc is the cause, but how can determine exactly which application is creating those page faults?
i have tried with noon with t option and then 5(for i/o) but it seems all normally.
any suggest would be appreciated.
Thanks
10 More Discussions You Might Find Interesting
1. HP-UX
Hello
Please can you tell me how to access COPY ON WRITE page faults in HP -UNIX.
I found the structure in
/usr/include/sys/vmmeter with the structure name vmmeter.
Please tell me the function to fill the values to this structure and also
the arguments for function.:: (5 Replies)
Discussion started by: manjunath
5 Replies
2. HP-UX
Hi,
Will anybody tell me what is this 'intransient blocking page faults' in HP-UX, it is in the structure _pst_vminfo in the header file /ust/include/sys/pstat/vm_pstat_body.h? (4 Replies)
Discussion started by: sushaga
4 Replies
3. AIX
Sorry my poor english
In 570 pseries nmon shows excessive page faults, ascents of something more than 30000 Page faults.
System: AIX 5.2 ML5
Processor Type: PowerPC_POWER5
Number Of Processors: 2
Processor Clock Speed: 1656 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
Memory Size: 2816 MB
... (1 Reply)
Discussion started by: daviguez
1 Replies
4. Solaris
Hi,
We are running SUN sparc 5.8, notice frequent "Page Faults" message from our monitor s/w "ServerVantage" coming but no message display in SUN syslog or messages log. Any ideas why or what to check?
thanks,
Ahmad (2 Replies)
Discussion started by: Ahmad
2 Replies
5. Solaris
Hi,
Currently I'm experience very high page ins on my system running on solaris 10.
From vmstat, the page ins figure is very high, further drill down shows the page ins are from file system and occassional spike in executable page ins.
Details as follow:
oracle@perch:/files>> vmstat 5... (9 Replies)
Discussion started by: srage
9 Replies
6. AIX
Hello,
I've been reading your forums for quite a while and the great amount of information I find here always come in hand.This time however, I need some specific help...
I have a doubt with an AIX server which I'm failing to understand as I'm new to its concept of memory management...
... (8 Replies)
Discussion started by: flpgdt
8 Replies
7. AIX
Hi,
OS = AIX 5.3
Large number of page faults recently start to occure on AIX 5.3 lpar with mysql database installed. I need help in setting AIX OS parameter to solve the paging problem and some guidance on interpreting my stats
t
Code:
# vmstat... (5 Replies)
Discussion started by: crosys
5 Replies
8. AIX
Hi,
Can someone help and give the answer for the following questions:
1. When PowerHA SystemMirror 7.1 is installed on AIX 7.1, what RSCT component does Cluster Aware AIX (CAA) replace?
A. Group Services
B. Resource Manager
C. Topology Services
D. Resource Monitoring and Control... (2 Replies)
Discussion started by: walterchang100
2 Replies
9. Solaris
Hi guys,
I have a zone on a M5000 server running solaris 10. The zone has an SAP application running on it and facing some performance issues. As part of the troubleshooting, I've been recommended to look for any paging on the OS. Please advise how to look for the paging.
I've been looking at... (4 Replies)
Discussion started by: frum
4 Replies
10. UNIX for Beginners Questions & Answers
I am new to AIX but not new to unix.
I have an interview for an AIX systems admin position and I know they want someone who has knowledge of High Availability, Failover and LPARs
From my research so far, It appear powerha is used to setup high availability and failover on Power systems but is... (2 Replies)
Discussion started by: mathisecure
2 Replies