-bash-3.2# diskutil eraseDisk jhfs+ HDD gpt disk3
Started erase on disk3
Unmounting disk
Creating the partition map
Waiting for partitions to activate
Formatting disk3s2 as Mac OS Extended (Journaled) with name HDD
Initialized /dev/rdisk3s2 as a 465 GB case-insensitive HFS Plus volume with a 40960k journal
Mounting disk
Finished erase on disk3
-bash-3.2#