How to fix the Oracle error ORA-15001: diskgroup “string” does not exist or is not mounted?

In this post, you’ll learn more about the Oracle ErrorORA-15001: diskgroup “string” does not exist or is not mounted with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15001: diskgroup “string” does not exist or is not mounted

Reason for the Error ORA-15001: diskgroup “string” does not exist or is not mounted

An operation failed because the diskgroup specified does not exist or is not mounted by the current ASM instance.

How to fix the Error ORA-15001: diskgroup “string” does not exist or is not mounted ?

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

Verify that the diskgroup name used is valid, that the diskgroup exists, and that the diskgroup is mounted by the current ASM instance.