An application running inside the VM is responding normally.
To enable Application Monitoring, you must first obtain the
appropriate SDK (or be using an application that supports VMware
Application Monitoring) and use it to set up customized heartbeats
for the applications you want to monitor.
VM guest operating system is up and responding normally (VM tools
heartbeat status is green).
No ready condition specified.
In case of vSphere HA, higher restart priority VMs are still
placed before lower priority VMs.
VM is powered on.
VM will use the cluster default setting. This option is only
meaningful for per-VM settings.