How to fix the Oracle error ORA-15204: database version string is incompatible with diskgroup string?

In this post, you’ll learn more about the Oracle ErrorORA-15204: database version string is incompatible with diskgroup string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15204: database version string is incompatible with diskgroup string

Reason for the Error ORA-15204: database version string is incompatible with diskgroup string

The database compatibility of the diskgroup was advanced to a later version.

How to fix the Error ORA-15204: database version string is incompatible with diskgroup string ?

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

Upgrade the database instance to appropriate version of ORACLE.