I just purchased a new 12tb LaCie 4big and was curious if I should reformat it with my Imac i7 running Lion which is the system it will be used on. The drive out of the box passed integrity and verify tests but just curious on if a reformat is a good way to ensure the drive is clean and ready for use. Also what is the best way to format using Disk Utility. Can I use the main "Erase" tab and format as Mac OS Extended or do I need to use the RAID tab? If so which settings for a maximum storage usage as this is offline so I am going for Raid 0 for speed and need max. capacity.