Removing a network interface from a cluster node

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You can remove a PowerHA® SystemMirror® network interface from an active cluster dynamically; you do not need to stop and restart cluster services.

About this task

Note: Deleting all network interfaces associated with a network deletes the network from PowerHA SystemMirror.

To remove a network interface from a cluster node:

Procedure

  1. From the command line, enter smit sysmirror
  2. In SMIT, select Cluster Nodes and Networks > Manage Networks and Network Interfaces > Network Interfaces > Remove a Network Interface and press Enter.
  3. Select the network interface(s) or the serial device(s) from the picklist and press Enter.

    When you remove a network interface, all information associated with the interface is removed from the Configuration Database. SMIT prompts you to confirm that you want to do this operation. Press Enter again only if you are sure you want to remove the interface and its associated information.

  4. On the same node, synchronize the cluster. If the Cluster Manager is running on the local node, the synchronization triggers a dynamic reconfiguration event.

    When the synchronization completes, the selected network interfaces are removed from the cluster topology definition.