Monitor node for load and free swap space

You might not need a custom monitor - but have you looked at "SNMP DCA" monitor on the F5 that looks at the Disk, CPU and memory. My suggestion is to read up on that if you haven't in the configuration guides for the particular LTM you have.

 

Hope this helps

 

CB

What OS is the node running? Linux can report what you're looking for via SNMP. Take a look here:

 

 

http://www.debianadmin.com/linux-snmp-oids-for-cpumemory-and-disk-statistics.html

 

 

...for some OIDs related to host monitoring under Debian (though any Linux running net-snmp will probably share them as well).

Thanks for the advice. These are Linux hosts. I will go the SNMP route with a custom monitor. The LTM will replace an Ultramonkey/Nagios setup. They want the node marked unavailable if one or both of these statistics reach a certain threshold.

Here is another link on the samples section that could be adapted as a custom monitor

 

 

http://devcentral.f5.com/wiki/default.aspx/AdvDesignConfig/SNMPDynamicRatioMonitor.html

 

 

CB