Overview

Migration from single instance to RAC database, can be done in two ways depending if downtime is possible:

Creating Physical Standby database

Restore template with DBCA on another server

Using the RConfig

In our case we will use the RConfig tool. So let's get going

Prepare the environemnt

First, be sure to take an offline backup of the single instance database, preferably with RMAN:

Create offlien backup