Adding PowerHA SystemMirror network interfaces

You can add a network interface to an active cluster dynamically. You do not need to stop and restart cluster services for the network interface to become part of the cluster.

  1. On the node getting the new network interface card, complete the prerequisite tasks:
    • Install the new network interface card.
    • Configure the new logical network interface to AIX®.
  2. On all cluster nodes, update the /etc/hosts file to include the IP address of the new network interface.
  3. On any cluster node, add the PowerHA® SystemMirror® communication interface to the cluster topology definition.
  4. Synchronize the cluster.