Dropping a Diskgroup in ASM

Instance: ASM Instance
Privilege: Sysdba
Syntax:

DROP DISKGROUP diskgroup_name INCLUDING/EXCLUDING CONTENTS;

Including Contents – Drops all the files associated with the disk group.
Excluding Contents – Drops the disk group only when it is empty. Default.

Example 1

SQL> Drop Diskgroup ASMDATA including contents;

Example 2

SQL> Drop Diskgroup ASMIND;

Thanks