Your environment might contain multiple vCenter Server instances registered with different external Platform Services Controller instances, while the infrastructure data is replicated between thePlatform Services Controller instances. You can use vSphere Data Protection to restore any failed vCenter Server instance.
You can back up and restore only virtual machines that contain vCenter Server, vCenter Server Appliance, and Platform Services Controller. You cannot back up and restore physical machines that are running vCenter Server by using vSphere Data Protection.
You must restore each failed vCenter Server.
Back up the virtual machines on which the vCenter Server instances reside.