After you have taken all of the required steps for enabling vSphere Fault Tolerance for your cluster, you can use the feature by turning it on for individual virtual machines.

Before Fault Tolerance can be turned on, validation checks are performed on a virtual machine.

After these checks are passed and you turn on vSphere Fault Tolerance for a virtual machine, new options are added to the Fault Tolerance section of its context menu. These include turning off or disabling Fault Tolerance, migrating the Secondary VM, testing failover, and testing restart of the Secondary VM.