How to fix the Oracle error CRS-01021: The Oracle Cluster Registry backup file in an ASM disk group is inaccessible. Details in string.?

In this post, you’ll learn more about the Oracle ErrorCRS-01021: The Oracle Cluster Registry backup file in an ASM disk group is inaccessible. Details in string. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

CRS-01021: The Oracle Cluster Registry backup file in an ASM disk group is inaccessible. Details in string.

Reason for the Error CRS-01021: The Oracle Cluster Registry backup file in an ASM disk group is inaccessible. Details in string.

Cause: Oracle Cluster Registry backup location did not exist, wasn’t mounted correctly, or did not have the required permissions.

How to fix the Error CRS-01021: The Oracle Cluster Registry backup file in an ASM disk group is inaccessible. Details in string. ?

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

Action: Ensure that the backup location exists, that it is mounted correctly and visible to all nodes in the cluster, and that its permissions are correct. Check the entries in the ASM alert log file for more details.