This properties affect on another things.
"If set to FALSE, the resource group does *not start* automatically when the *cluster is rebooted*. The resource group remains offline until the first time that the resource group is manually switched online by using the clresourcegroup(1CL) command or the equivalent graphical user interface command. After that, the resource group resumes normal failover behavior."
You can disable resource when create it.
Disables a resource when the resource is created. You can specify this option only with the create subcommand. By default, resources are created in the enabled state."