Leaving the Cluster
A host has to leave a cluster before being moved to another cluster. Leaving a cluster is also a way to switch a host from a single host environment to a multi-host environment or vice versa. A host cannot leave a cluster if there are still forests assigned to it or if it has any foreign clusters associated with it; you must delete all forests assigned to the host and de-couple any clusters associated with a host before you can leave the cluster. In a single-host environment, a host cannot leave a cluster because it will always have forests assigned to it.
To make a host leave a cluster, follow these steps:
Click Security in the left tree menu. A list of security items appears.
Click Users.
Click the Leave button.
Click OK to confirm leaving the cluster. The host restarts to load the new configuration.
Click OK to self-install initial databases and application servers. A prompt to join a cluster appears.
To join another cluster, enter the name of one of the hosts in that cluster and click OK. Otherwise, click Skip.
Set up an admin user name and password if prompted.
Log in with the admin user name and password if prompted. The Admin Interface appears.