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Operating Systems HP-UX Server Hanging frequently - urgent help required Post 302148125 by prowla on Friday 30th of November 2007 12:51:51 AM
Old 11-30-2007
It seems to me like you system is probably swapping, which will absolutely kill performance.

Your dynamic buffer cache has grown to 47% of memory (ie. half of your memory is being used to speed up file i/o, but it's strangling the system).

You can tune down the buffer cache bye setting the kernel parameters dbc_min_pct and dbc_max_pct to lower values (5 and 10 might be appropriate), but this requires a kernel rebuild and a reboot.

I don't know if there has been a hardware problem with memory; if there has then the EMS mentioned above should tell you:- check root's email and the syslog for EMS alerts.

Of course, you could also check if anything has been changed (I recall an Informix DBA "tuning" the database to use all the memory and not leaving enough for anything else to run!).
 

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cmstopres(1m)															     cmstopres(1m)

NAME
cmstopres - stops resource monitoring on the local node for an EMS resource that is configured in a Serviceguard package. SYNOPSIS
cmstopres [-v] -p package_name resource_name DESCRIPTION
cmstopres stops resource monitoring for an EMS resource on the local node. This resource must be configured in the specified package_name. To stop a resource monitoring for an EMS resource in the package, a user must either be superuser(UID=0), or have an access policy of FULL_ADMIN allowed in the cluster configuration file. See access policy in cmquerycl(1m) or cmmakepkg(1m). Options cmstopres supports the following options. -v Verbose output will be displayed. -p package_name The name of the package where the EMS resource is configured in. This is a required parameter. resource_name Name of the EMS resource to stop resource monitoring for. This resource must be configured in the specified package name. This is a required parameter. RETURN VALUE
cmstopres returns the following values: 0 Successful completion. 1 Command failed. EXAMPLES
To stop resource monitoring for the EMS resource /net/interfaces/lan/status/lan0 for package pkgA, do the following: cmstopres -p pkgA /net/interfaces/lan/status/lan0 AUTHOR
cmstopres was developed by HP. SEE ALSO
cmstartres(1m), cmquerycl(1m), cmmakepkg(1m), Requires Optional Serviceguard Software cmstopres(1m)
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