You can change the host cluster name, or add or remove hosts in a host cluster.
Select the host cluster you want to edit, and then click View/Edit Settings.
A dialog box appears that shows the current host cluster settings.
Change the settings for the host cluster as appropriate.
You can specify the user-supplied name of the host cluster. Specifying a name for a cluster is required.
To add a host, click the Associated Hosts box, and then select a host name from the drop-down list. You cannot manually enter a host name.
To delete a host, click the X next to the host name.