After you create a cluster, you can assign an Identity Server to it. You can assign more than one Identity Server to the cluster configuration. See Configuring a Cluster with Multiple Identity Servers. A configuration uses any IDP Global settings you have specified, such as attribute sets, user matching expressions, and custom attributes that are defined for the server.
On the Home page, click Identity Servers.
Click Unassigned Servers.
Select the server(s) that you want to assign to a cluster and click Assign to a cluster.
Select the cluster.
Click OK.
Restart Tomcat on each Identity Server in the configuration:
Specify one of the following commands:
/etc/init.d/novell-idp restart
systemctl restart -idp
The status icon for Identity Server must turn green. It might take several seconds for Identity Server to start and for the system to display the green icon.