How to fix the Oracle error ORA-09967: unable to create or open lock file?

In this post, you’ll learn more about the Oracle ErrorORA-09967: unable to create or open lock file with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-09967: unable to create or open lock file

Reason for the Error ORA-09967: unable to create or open lock file

Oracle failed, when making an open system call, inorder to acquire a file lock used by the database mount lock or the instance startup/shutdown lock.

How to fix the Error ORA-09967: unable to create or open lock file ?

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

Check errno for more information.