Check manual page of statgrab_mem

Usage of Physical and Virtual RAM
Distribution	official part of Check_MK
License	GPL
Supported Agents	Hpux Solaris

This check measures the current usage of physical RAM and virtual memory used by processes. You can define a warning and critical level for the usage of virtual memory, {not} for the usage of RAM. Check_mk lets you define levels in percentage of the physically installed RAM or as absolute values in MB. The default levels are at 150% and 200%. That means that this check gets critical if the memory used by processes is twice the size of your RAM. See check manpage for {mem.used} too. Make sure you have the statgrab binary available on the monitored machine. Under HP-UX you also need to activate the hpux_statgrab agent plugin.

Discovery

One service is created on every machine with statgrab.