Monitoring MacOS X host with SNMP and Cacti

I've been monitoring some hosts with cacti and needed to add a MacOS X host in.  This is how to configure SNMP on Snow Leopard and configure cacti.

Edit your /etc/snmp/snmpd.conf on the Mac and place the following into it:

rocommunity public
includeAllDisks 10%


Once saved, start the snmpd daemon with:

sudo launchctl load -w /System/Library/LaunchDaemons/org.net-snmp.snmpd.plist

Thats it from the Mac side, now in cacti add it as a you would any other device, but also add a graph type of "[SNMP - Get Processor Information]" to get the processor information broken down by core.

Thats it.  You should start seeing some graphs like the following: