View, add, and delete node group members

Make the nodes organized 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.

Node group membership must adhere to the following rules:

• A node in a node group must be a managed node.

• A managed node must be a member of at least one node group. Initially, all WebSphere Application Server nodes are members of the default node group named DefaultNodeGroup.

• If the node is on the z/OS platform, the node must be a member of a sysplex node group. The node can also be a member of other node groups that are not sysplex node groups.

• (iSeries) Nodes on distributed platforms and nodes on IBM i platforms can be members of the same node group.

• Nodes on distributed platforms and IBM i platforms cannot be members of a node group containing a node on a z/OS platform.

• Nodes in different sysplexes must be members of different node groups. Nodes in the same sysplex must belong to the same node group.

View node groups members

1. In the console navigation tree, click...
   System administration > Node groups > node group name > Nodes > Node group members

2. To view additional information about a particular node group member for this node group, click on the node group member name under Name.

Add a node to a node group

1. Click...
   System administration > Node groups > node group name > Nodes > Node group members

2. Click Add.

3. Select the node from a list. The node group member name is the node name.

The node group member is added to the node group specified on the breadcrumb trail. The name of the node group member appears in the name column of the Node group member page. We can add additional nodes of similar characteristics to the node group by repeating the steps for adding a node to a node group.

If the node we add does not satisfy the node group membership rules for the target node group, the add node operation fails with an error message.

Remove a node from a node group

1. Click...
   System administration > Node groups > node group name > Nodes > Node group members

2. Select the box next to each node group member to remove from the node group.

3. Click Remove.

Each node group member that we selected is removed from the node group specified on the breadcrumb trail.

Subtopics

• Node group member collection
  
• Node group member settings
  
• Example: Using node groups with clusters
  

Related:

Node groups