You can use the GUI installer to perform an interactive upgrade of a vCenter HA cluster 6.5 that uses an external Platform Services Controller instance to vCenter Server Appliance 6.7 with an external Platform Services Controller. 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.

Prerequisites