How to fix the Oracle error PRCD-01212: An instance with name “{0}” already exists on node {1}?

In this post, you’ll learn more about the Oracle ErrorPRCD-01212: An instance with name “{0}” already exists on node {1} with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PRCD-01212: An instance with name “{0}” already exists on node {1}

Reason for the Error PRCD-01212: An instance with name “{0}” already exists on node {1}

Cause: Unable to add an instance to the database on the specified node because an instance with the same name was found on another node.

How to fix the Error PRCD-01212: An instance with name “{0}” already exists on node {1} ?

You can fix this error in Oracle by following the below steps

Action: Use ‘srvctl modify instance’ command to change the name of the existing instance, or use a different instance name in the ‘srvctl add instance -i ‘ command.