You can use the GUI installer to perform an interactive upgrade of a vCenter HA cluster 6.5 or 6.7 that uses an external Platform Services Controller instance to vCenter Server appliance 7.0. You must run the GUI upgrade from a Windows, Linux, or Macintosh computer that is in the same network as the appliance that you want to upgrade.
A vCenter HA cluster consists of three vCenter Server appliances that act as Active, Passive, and Witness nodes. The Active vCenter HA node is upgraded using a migration-based upgrade while preserving the existing configuration.
- The new vCenter Server appliance contains all Platform Services Controller services. It is no longer necessary nor possible to deploy and use an external Platform Services Controller, as all Platform Services Controller services are consolidated into vCenter Server. To learn more about this change to vCenter Server, see Removal of Platform Services Controller.
- Ensure that your environment meets the prerequisites for upgrading a vCenter HA cluster. See Prerequisites for Upgrading vCenter Server High Availability Environments.
- See Required Information for Upgrading a vCenter Server Appliance 6.5 or 6.7.