How to fix the Oracle error ORA-15068: maximum number of diskgroups string already mounted?

In this post, you’ll learn more about the Oracle ErrorORA-15068: maximum number of diskgroups string already mounted with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15068: maximum number of diskgroups string already mounted

Reason for the Error ORA-15068: maximum number of diskgroups string already mounted

An attempt was made to mount more diskgroups than the instance is capable of mounting at one time.

How to fix the Error ORA-15068: maximum number of diskgroups string already mounted ?

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

Dismount a mounted diskgroup and retry the command.