You can use the GUI installer to perform an interactive deployment of a vCenter Server Appliance and register it with an existing external Platform Services Controller instance. You must run the GUI deployment from a Windows, Linux, or Mac machine that is in the network on which you want to deploy the appliance.

Note: vCenter Server deployments using an external Platform Services Controller will not be supported in a future vSphere release. Deploy or upgrade to a vCenter Server deployment using an embedded Platform Services Controller. For more information, see the VMware Knowledge Base article
Figure 1. Deployment Workflow of a vCenter Server Appliance with an External Platform Services Controller

Deployment workflow that consists of two stages