NetApp
Cluster : Configuration > Peers : Managing cluster peers : Editing cluster peer relationships
Editing cluster peer relationships
You can edit a cluster peer relationship to enable new nodes to participate in the intercluster communication.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
Ensure that the left navigation pane displays the cluster hierarchy.
3.
Click Configuration > Peers.
4.
Select the cluster peer and click Edit.
5.
In the dialog box to edit the cluster peer relationship, make the necessary changes.
6.
Click OK.
7.
Verify the changes you made to the selected cluster peer.