Use the Additional Rack Settings screen to add physical racks to your Cloud Foundation installation.

As described in the VMware Cloud Foundation Overview and Bring-Up Guide, when you follow the steps to power on a new rack and use the inter-rack switches to connect it to the system's existing racks, the thumbprint of the added rack is displayed in this screen. Then you start the Add Rack wizard to verify the identity of the new rack using its thumbprint and bootstrap password.

See the Bringing-Up on Additional Racks procedure in the VMware Cloud Foundation Overview and Bring-Up Guide for the detailed steps.