Create a cluster: Create additional cluster members
Use this page to create additional members for a cluster. You can add a member to a cluster when you create the cluster or after you create the cluster. A copy of the first cluster member that you create is stored as part of the cluster data and becomes the template for all additional cluster members that you create.
To add members to a cluster, in the console, click Servers > Clusters > cluster > Cluster members > New. After you enter the required information about the new cluster member, click Add Member to add this member to the cluster member list.
After adding a cluster member, you might need to change one or more of the property settings for this cluster member, or a another cluster member that you just added. To change one or more property settings for any cluster member that you just added, other than the first cluster member, select that cluster member, and then click Edit. When you finish changing the property settings, click Update Member to save your changes.
If you decide not to create a particular cluster member, select the member and then click Delete.
You cannot edit or delete the first cluster member or an already existing cluster member.
If you create additional cluster members immediately after you create the first cluster member, the list of cluster members includes a checklist in front of the names of these additional cluster members. However, a check box does not appear in front of the name of the first cluster member because you cannot delete this member or edit its settings. To modify the first cluster member, click Previous.
Similarly, if you are adding cluster members to a cluster that already has existing members, the existing members appear in the list of cluster members but a check box does not appear in front of the names of these cluster members. To delete one of these existing members or to change the settings of one of these cluster members, in the console click Servers > Clusters > cluster > Cluster members and then select the member to delete or whose configuration settings you want to change.
- Member name
- Name of the appserver that is created for the cluster.
The member name must be unique on the selected node.
- Select node
- Node on which the appserver resides.
In a mixed cell environment, you can use any server from within the node group to create a new cluster member. For example, if the node group to which the cluster belongs consists of a v6.1 node, and a v5.1, you can use a server from either the v5.1 or the v6.1 node to create a new cluster member.
- Weight
Specify the amount of work that is directed to the appserver.
If the weight value for the server is greater than the weight values that are assigned to other servers in the cluster, the server receives a larger share of the cluster workload. The value can range from 0 to 20. Enter zero to indicate that you do not want requests to route to this appserver unless this server is the only server that is available to receive requests.
- Generate unique HTTP ports
Specify that a unique HTTP port is generated for the appserver. By generating unique HTTP ports for the appserver, you avoid potential port collisions and configurations that are not valid.
Related concepts
Clusters and workload management
Related tasks
Modifying cluster member templates using scripting
Creating clusters
Related Reference
Creating a cluster: Basic cluster settings
Creating a cluster: Create first cluster member
Creating a cluster: Summary settings
Reference topic