How to fix the Oracle error ORA-15489: conflicting volume already open on this node?

In this post, you’ll learn more about the Oracle ErrorORA-15489: conflicting volume already open on this node with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15489: conflicting volume already open on this node

Reason for the Error ORA-15489: conflicting volume already open on this node

An ASM volume was not closed prior to instance shutdown on node specified. It is conflicting with the volume that is to be enabled.

How to fix the Error ORA-15489: conflicting volume already open on this node ?

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

Close the ASM volume either via unmount or node restart and retry the operation.