In this scenario, we are going to demonstrate how to extend an existing cluster environment by adding a new node that will vertically scale up our existing cluster environment. We will assume that there is an existing cluster environment with one node named raclinux1
and we will add a new node named raclinux2
in a non-shared Oracle home.
Note
Please note that for all the examples demonstrated here, we have a separate Oracle Home for ASM and RDBMS binaries (not applicable for 11gR2).
Before adding a new node to an existing cluster, the following prerequisites must be met:
You should have successfully installed Oracle Clusterware on at least one of the nodes in an existing cluster environment.
All existing nodes in the cluster must be up and running. For any reason, if a node is having problems, you must solve the problems first or remove the node from the cluster, if required.
Prepare the OS with required kernel parameters and the latest patches/packages...