First, we will be speaking about vSphere HA. vSphere HA protects primary ESXi host failures. Of course, you can use vSphere HA protection for datastore failures, application failures, and network isolation. vSphere HA configuration is a part of the cluster object, so first, you must create a cluster object in your data center object.
Configuration vSphere HA is a part of the cluster configuration in vSphere Web Client; click on the Edit... button in the vSphere Availability area as shown in the following screenshot:
vSphere HA – Configuration – Edit
The configuration in the basic state is very easy; click on Turn ON vSphere ...
