How to fix the Oracle error ORA-15402: insufficient number of disks to support ASM appliance ‘string’?

In this post, you’ll learn more about the Oracle ErrorORA-15402: insufficient number of disks to support ASM appliance ‘string’ with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15402: insufficient number of disks to support ASM appliance ‘string’

Reason for the Error ORA-15402: insufficient number of disks to support ASM appliance ‘string’

An attempt was made to do an operation that resulted in insufficient number of disks required for the specified appliance.

How to fix the Error ORA-15402: insufficient number of disks to support ASM appliance ‘string’ ?

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

Check the appliance configuration and retry the operation after inserting disks in the appropriate slots.