How to fix the Oracle error ORA-01638: parameter string does not allow ORACLE version string to mount cluster database?

In this post, you’ll learn more about the Oracle ErrorORA-01638: parameter string does not allow ORACLE version string to mount cluster database with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01638: parameter string does not allow ORACLE version string to mount cluster database

Reason for the Error ORA-01638: parameter string does not allow ORACLE version string to mount cluster database

The recovery compatible parameter is set too low to allow this software version to mount in cluster database mode.

How to fix the Error ORA-01638: parameter string does not allow ORACLE version string to mount cluster database ?

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

Either use an earlier software release or advance the recovery_compatible parameter. If this happens when no recovery_compatible parameter has been specified then set it to the current software release.