Note
The node names are logically sorted in their ascii order within HACMP in order to decide which nodes are considered to be neighbors for heartbeat purposes.
In order to build a logical ring, a node always talks to its up- and downstream neighbor in their node name’s ascii order. The uppermost and the lowest node are also considered neighbors.
Adding or Changing a Node Name after the Initial Configuration
If you want to add or change a node name after the initial configuration, use the Change/Show Cluster Node Name screen. See the chapter on changing the cluster topology of the HACMP for AIX, Version 4.3:Administration Guide,
4.2.3 Defining Adapters
To define the adapters after defining the node names, first consult your planning worksheets for both TCP/IP and serial networks.
There are a number of attributes associated with an Adapter in the HACMP configuration which need to be specified:
Adapter IP Label Enter the IP label (the name) of the adapter you have chosen as the service address for this adapter. Adapter labels can be any ASCII text string consisting of alphabetical and numeric characters, underscores, and hyphens, up to 31 characters.
If IP address takeover is defined for that adapter, a boot adapter (address) label has to be defined for it. Use a consistent naming convention for boot adapter labels. (You will choose the Add an Adapter option again to define the boot adapter when you finish defining the service adapter.)
You can use hyphens in adapter labels. However, currently it might not be a good idea since the /usr/sbin/cluster/diag/clverify utility flags adapter labels that contain hyphens each time it runs.
Network Type Indicate the type of network to which this adapter is connected.
