How to fix the Oracle error ORA-15290: operation not permitted on offline disk string?

In this post, you’ll learn more about the Oracle ErrorORA-15290: operation not permitted on offline disk string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15290: operation not permitted on offline disk string

Reason for the Error ORA-15290: operation not permitted on offline disk string

An attempt was made to specify an operation that is only permitted on disks that are online. The specified disk was not online.

How to fix the Error ORA-15290: operation not permitted on offline disk string ?

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

Online the disk or wait for online to complete before retrying the operation.