You can install or deploy a Platform Services Controller and register several vCenter Server instances with the same Platform Services Controller. You can use vSphere Data Protection to restore your environment if the external Platform Services Controller fails.
Important: 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.
Prerequisites
Back up the virtual machine on which the Platform Services Controller resides.