If the nodes that you need are not in the list, they might
not meet specific requirements.
The Choose Nodes page provides a list of available nodes that are
not already in use by another cluster. IBM® Systems Director discovered
these nodes. All these nodes have the PowerHA® SystemMirror subagent
software installed on them. Nodes must be unlocked through IBM Systems Director to
be discovered and viewed on this page.
Ensure that all unlisted nodes that you want to include in the
cluster meet the following requirements and conditions:
- Use the Discover task in IBM Systems Director to
discover all nodes in your subnetwork.
- Use the Request Access task in the IBM Systems Director to
unlock all nodes that have the status of no access.
- Confirm that the nodes have the same AIX® version
installed on them as the other nodes that you chose for this cluster.
Confirm that the nodes have the same version and edition
of PowerHA SystemMirror installed
on them as the other nodes that you choose for this cluster.
- Confirm that all the nodes share at least one storage disk among
them to be used exclusively for the cluster repository. If you are using PowerHA SystemMirror 7.1.2 Standard
Edition to configure a linked cluster with sites, the
nodes for each site must have at least one storage disk in common
among them.
- Check the physical connection of the nodes to the listed nodes.
For more information about nodes, see the Cluster nodes topic in the AIX Information Center.
For more information about adding nodes to a cluster, see the Adding nodes to a cluster topic in the AIX Information Center.