When you upgrade or migrate a vCenter Server deployment using an external Platform Services Controller, you converge the Platform Services Controller into a vCenter Server appliance.

When you converge the Platform Services Controller into a vCenter Server appliance, you must identify the management node to use for your deployment's vSphere SSO domain. In domains with multiple vCenter Server instances, you must specify the SSO replication partner to use for each subsequent vCenter Server.

The method you use to upgrade or migrate determines how you specify the management node to use for your deployment's vSphere SSO domain.

When the upgrade or migration process finishes, the newly deployed vCenter Server 7.0 appliance incorporates the former Platform Services Controller services. You can then decommission the external Platform Services Controller in your environment. See Decommission the Platform Services Controller.

To learn more about converging a vCenter Server deployment using an external Platform Services Controller into a vCenter Server appliance, see Knowledge Base article KB 68137.