How to fix the Oracle error ORA-15157: rolling migration is not allowed?

In this post, you’ll learn more about the Oracle ErrorORA-15157: rolling migration is not allowed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15157: rolling migration is not allowed

Reason for the Error ORA-15157: rolling migration is not allowed

The cluster was not capable of handling ASM rolling migration.

How to fix the Error ORA-15157: rolling migration is not allowed ?

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

The Oracle Cluster Services is using vendor clusterware. Oracle cannot perform rolling upgrade or downgrade using vendor cluster ware. Restart ASM instances using Oracle cluster ware and retry the operation.