How to fix the Oracle error ORA-15112: no diskgroups currently mounted?

In this post, you’ll learn more about the Oracle ErrorORA-15112: no diskgroups currently mounted with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15112: no diskgroups currently mounted

Reason for the Error ORA-15112: no diskgroups currently mounted

An ALTER DISKGROUP ALL command did not find any mounted diskgroups upon which to operate. Either instance shutdown or an ALTER DISKGROUP ALL DISMOUNT command did not dismount any diskgroups, or an ALTER DISKGROUP ALL UNDROP DISKS command did not undrop any disks.

How to fix the Error ORA-15112: no diskgroups currently mounted ?

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

Mount the diskgroups on which you wish to operate or ignore the error.