Use this overview to understand the procedures you use to clone Oracle RAC.
In the preparation phase, you create a copy of an Oracle home that you then use to perform the cloning procedure on one or more nodes. You also install Oracle Clusterware.
Install Oracle RAC
Use the detailed instructions in Oracle Real Application Clusters Installation Guide for your platform for your platform to install the Oracle RAC software and patches:
Install Oracle RAC and choose the Software only installation option.
Patch the release to the required level (for example, 12.1.0.n).
Apply one-off patches, if necessary.
Create a backup of the source home
Create a copy of the Oracle RAC home. Use this file to copy the Oracle RAC home to each node in the cluster.
When creating the backup (tar) file, the best practice is to include the release number in the name of the file. For example:
# cd /opt/oracle/product/12c/db_1
# tar –zcvf /pathname/db1120.tgz .
See Also:
Install and start Oracle Clusterware
Before you can use cloning to create an Oracle RAC home, you must first install and start Oracle Clusterware on the node or nodes to which you want to copy a cloned Oracle RAC home. In other words, you configure an Oracle RAC home that you cloned from a source cluster onto the nodes in a target cluster in the same order that you installed the Oracle Clusterware and Oracle RAC software components on the original nodes.
See Also:
Oracle Clusterware Administration and Deployment Guide for information about cloning Oracle Clusterware homes to create new clusters, and starting Oracle Clusterware by issuing the crsctl start crs command