From the Platform Setting section of the navigation pane, select Topology Settings.
The Cluster Configuration page opens; the initial group is All Clusters.
From the content tree, select All Clusters.
The Cluster Configuration page opens.
In the Cluster Settings table, in the row listing the cluster you want to remove, click Delete.
A confirmation message appears.
Click OK.
An instructional message with further instructions appears.
The cluster is removed from the topology.
After the cluster is removed, use the Platform Configuration (PlatCfg) utility to remove cluster information. For more information, see the Platform Configuration User's Guide.