EDB Ark's Scale Up dialog makes it simple to manually add additional replicas to a cluster if you find that server resources are strained. The dialog also allows you to increase the amount of storage available to a cluster.If you specify that EDB Ark should add both storage and replicas, EDB Ark will process the request for additional storage before adding replicas to the cluster. All of the nodes on the cluster will be of the newly specified storage size.To add a replica or storage space to a cluster, navigate to the Clusters tab, highlight a cluster name, and select the Scale Up icon. The Scale Up dialog opens as shown in Figure 9.1.Use the drop-down listboxes on the Step 1 tab to specify:When you've completed the dialog, click Next to continue to the Step 2 tab (shown in Figure 9.2).Use the Previous button to return to the Step 1 tab to modify specified values. Use the Scale Up button to confirm that you wish to add the specified number of replication servers or the specified amount of memory to the cluster. Use the Cancel button, or simply close the dialog to exit without modifying the cluster.