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Full Discussion: AIX 7.1 high page faults
Operating Systems AIX AIX 7.1 high page faults Post 302723971 by gullio23 on Wednesday 31st of October 2012 05:05:36 AM
Old 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
 

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SAM_START(3)					    Corosync Cluster Engine Programmer's Manual 				      SAM_START(3)

NAME
sam_start - Start health checking SYNOPSIS
#include <corosync/sam.h> cs_error_t sam_start (void); DESCRIPTION
The sam_start function is used to start health checking of application. After calling this function, the active process needs to send healthchecks within the registered time interval by calling sam_hc_send(3). If event driven healthchecking is configured by calling sam_register(3), an internal thread will be created and send health check confirmations four times per time_interval. Application must be registered by calling sam_register(3) before this function can be called. An application can always stop health checking by calling the sam_stop(3) function. RETURN VALUE
This call return CS_OK value if successful, otherwise and error is returned. ERRORS
CS_ERR_BAD_HANDLE component was not registered by calling sam_register(3) function. SEE ALSO
sam_hc_send(3), sam_stop(3), sam_register(3), sam_hc_callback_register(3) corosync Man Page 12/01/2009 SAM_START(3)
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