How to fix the Oracle error ORA-15203: diskgroup string contains disks from an incompatible version of ASM?

In this post, you’ll learn more about the Oracle ErrorORA-15203: diskgroup string contains disks from an incompatible version of ASM with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15203: diskgroup string contains disks from an incompatible version of ASM

Reason for the Error ORA-15203: diskgroup string contains disks from an incompatible version of ASM

Diskgroup was created by an ASM instance with a higher compatibility setting.

How to fix the Error ORA-15203: diskgroup string contains disks from an incompatible version of ASM ?

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

Use an ASM instance with the appropriate software version to mount the diskgroup.