How to fix the Oracle error ORA-15065: hash collision for diskgroup names ‘string’ and ‘string’?

In this post, you’ll learn more about the Oracle ErrorORA-15065: hash collision for diskgroup names ‘string’ and ‘string’ with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15065: hash collision for diskgroup names ‘string’ and ‘string’

Reason for the Error ORA-15065: hash collision for diskgroup names ‘string’ and ‘string’

There was a collision in the group name used for the diskgroup. The diskgroup(s) cannot be mounted using colliding names.

How to fix the Error ORA-15065: hash collision for diskgroup names ‘string’ and ‘string’ ?

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

Use a different diskgroup name and also report to Oracle Support Services the two diskgroup names which collided.