This item allows you to configure all the information referring to the nodes that make up the cluster and the services provided by those.
Each node can have resources associated to them. These resources are basically virtual IP mumbers that are activated and services to be started, when at least one of the nodes in the cluster get started. Those IP addresses are disabled when a transition occurs.
The services are normally standard System V startup scripts, located in /etc/rc.d/init.d or /etc/ha.d/resource.d. These scripts, when called, receive the "start" or "stop" parameters based on the service takeover or its return. To pass other parameters to the script you can use the following sintax: service::parameter.
It's important to remember that two different nodes can't answer to the same IP address simultaneously.