Before you begin
Read about Nodes groups and Node group membership rules if you are unfamiliar with them.Why and when to perform this task
All nodes must be a member of at least one node group. Initially, all Application Server nodes are members of the default node group named DefaultNodeGroup. Make the nodes that you organize into a node group enough alike in terms of installed software, available resources, and configuration to enable servers on those nodes to host the same applications as part of a server cluster. Use this topic to manage the nodes in your node groups by viewing, adding or deleting the nodes in a node group.Steps for this task
If the node you add does not satisfy the node group membership rules for the target node group, the add node operation fails with an error message.