I note that the Linux HA Project suggests that mon or nagios be used to
monitor in conjunction with hb_standby, a script that implements failover.
I note that OES does not install mon or nagios. So, what does it use
instead? In my current scenario I have a 2 node Linux cluster and I am
unable to purchase a third license at this time to use, what I presume,
will be a superior solution.