Chapter 20. Adding and Deleting Nodes and Instances
To handle increasing workloads or seasonal peaks, you sometimes need to increase the number of instances in your cluster, which will normally require the addition of one or new nodes. In this chapter, we describe procedures for adding nodes and instances to and deleting them from your cluster.
Before you attempt to add or delete an instance on a production database, we strongly recommend that you test these procedures in a nonproduction environment. If you do not have sufficient hardware to add a node to your test cluster, you can try deleting an existing node and adding it again. Before attempting any of these procedures, ensure that you have backed up the OCR.
Adding or deleting multiple nodes ...