Use the vSphere Client to disconnect a managed host from vCenter Server.
- Navigate to and select a host.
- Right-click the host and select Connection > Disconnect from the pop-up menu.
- In the confirmation dialog box that appears, click Ok.
If the managed host is disconnected, the word “disconnected” is appended to the object name in parentheses, and the object is dimmed. All associated virtual machines are similarly dimmed and labeled.