How to drop and recreate Oracle ASM Disk Groups in RAC

This post covers the simple commands on ow to drop and recreate Oracle ASM Disk Groups in RAC.
Warning: Running these commands shall result in Data Loss.
SQL> create pfile from spfile;
$ asmtool -delete \\.\ASMDISK01
$ asmtool -delete \\.\ASMDISK02
$ asmtool -delete \\.\ASMDISK03
$ asmcmd
ASMCMD> lsdg
$ srvctl status diskgroup -g DATA01
$ srvctl status diskgroup -g RECO01
$ srvctl stop diskgroup -g DATA01 -f
$ srvctl stop diskgroup -g RECO01 -f
SQL> drop diskgroup RECO01 force including contents;
Diskgroup dropped.
SQL> drop diskgroup DATA01 force including contents;
Diskgroup dropped.
Now that the ASM Disk Groups and constituent Disks have been dropped/erased, the new ASM Disk Groups can be recreated.
CREATE DISKGROUP DATA01 EXTERNAL REDUNDANCY
  DISK '/dev/asm/asmdisk*';
Resources:
How To Drop and Recreate ASM Diskgroup (Doc ID 563048.1)