Interconnecting Two Clusters
Before you create a connection between two clusters, connect to a realm in each cluster so that both clusters are displayed in the Enterprise Manager
To interconnect two clusters in the Enterprise Manager
1. Expand the Clusters node and select one of the clusters you want to connect.
2. Go to the Remote Cluster Connections tab and click Add.
3. In the To Cluster field, select the remote cluster to which you want to connect, and then click OK.
After the connection is established, you can create inter-cluster joins, either in the Enterprise Manager or programmatically.