How to fix the Oracle error ORA-15066: offlining disk “string” in group “string” may result in a data loss?

In this post, you’ll learn more about the Oracle ErrorORA-15066: offlining disk “string” in group “string” may result in a data loss with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15066: offlining disk “string” in group “string” may result in a data loss

Reason for the Error ORA-15066: offlining disk “string” in group “string” may result in a data loss

Following I/O failures, the disks holding all copies of a data block were attempted to be taken offline.

How to fix the Error ORA-15066: offlining disk “string” in group “string” may result in a data loss ?

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

Check the accompanying error messages for more information on the reason for the disk I/O failures.