A system administrator uses backups to restore vRealize Automation to a functional state after a system failure. If IaaS components such as Manager Service machines fail, you must reinstall them.
If you restore from a backup, machines that were provisioned after the backup still exist, but are not managed by vRealize Automation. For example, they do not appear in the items list for the owner. Use the Infrastructure Organizer to import virtual machines and bring them back under management.
You must start up your vRealize Automation components in a specified order.