### To Create a Cluster

1. In the tree component, select the Clusters node.

2. On the Clusters page, click New.

   The Create Cluster page appears.

3. In the Name field, type a name for the cluster.

   The name must:

   - Consist only of uppercase and lowercase letters, numbers, underscores, hyphens, and periods (`.`)

   - Be unique across all node agent names, server instance names, cluster names, and configuration names

   - Not be `domain`

4. In the Configuration field, choose a configuration from the pull-down list.

   - To create a cluster that does not use a shared configuration, choose `default-config` or another existing configuration.

     Leave the radio button labeled "Make a copy of the selected Configuration" selected. The copy of the configuration will have the name cluster_name`-config`. The new configuration inherits the configuration information of the copied configuration.

   - To create a cluster that uses a shared configuration, choose the configuration from the pull-down list.

     Select the radio button labeled "Reference the selected Configuration" to create a cluster that uses the specified existing shared configuration.

5. (Optional) Add server instances.

   You can also add server instances after the cluster is created.

   Before you create server instances for the cluster, first create one or more node agents or node agent placeholders. See To Create a Node Agent Placeholder.

   To create a server instance follow these steps and repeat them to add multiple instances:

   1. In the Server Instances To Be Created area, click Add.

   2. Type a name for the instance in the Instance Name field

   3. Choose a node agent from the Node Agent pull-down list.

6. Click Next.

   The procedure continues in

##### More Information
Equivalent asadmin command

`create-cluster`

##### See Also

- To Create Server Instances for a Cluster

- To Configure a Cluster

- To Delete a Cluster

- To Configure Server Instances in a Cluster

- To Configure Applications for a Cluster

- To Configure Resources for a Cluster

- To Migrate EJB Timers

- To Upgrade Components Without Loss of Service