The cluster version defines the level at which all the nodes in the cluster are actively communicating with each other.
Cluster versioning is a technique that allows the cluster to contain systems at multiple release levels and fully interoperate by determining the communications protocol level to be used.
To change the cluster version, all nodes in the cluster must be at the same potential version. The cluster version can then be changed to match the potential version. This will allow the new function to be used. The version can only be incremented by one. It cannot be decremented without deleting the cluster and recreating it at the lower version. The current cluster version is initially set by the first node defined in the cluster. Subsequent nodes added to the cluster must be equal to the current cluster version or the next level version, otherwise they cannot be added to the cluster.
Using iSeries™ Navigator
This requires Option 41 (HA Switchable Resources) to be installed and licensed.
To adjust the cluster version of a cluster, follow these steps:
Using Cluster commands and APIs
You can also use the following to adjust the cluster version of a cluster: