Adding a Node to a Cluster and Scaling an Oracle RAC Database to the Node

You can add a node to your two-node cluster by using Fleet Patching and Provisioning to add the node, and then extend an Oracle RAC database to the new node.

Before You Begin

In this procedure, Oracle Grid Infrastructure 21c is running on the cluster. Working copy GI_HOME_21c_WCPY is the active Grid home on this cluster.
The Oracle RAC database home runs on the working copy DB_HOME_21c_WCPY.
Ensure that you have storage, network, and operating system requirements configured for the new node as stated in Oracle Grid Infrastructure Installation Guide.

Procedure

From the Fleet Patching and Provisioning Server, run the following command to add a node to the existing Oracle Grid Infrastructure working copy:
```
rhpctl addnode gihome -workingcopy GI_HOME_21c_WCPY -newnodes n3:n3-vip {authentication_option}
```
The command extends the cluster by adding node3.
Add instances to the administrator-managed Oracle RAC database on the new node:
```
rhpctl addnode database -workingcopy DB_HOME_21c_WCPY -dbname db321 -node n3 {authentication_option}
```
The command extends the database home on the node3 and creates database db321 on this node.