hi, sorry guys for these dumb questions but can't seem to get my head around it: im looking at getting this external drive: http://eshop.macsales.com/item/OWC/MEPQ936AL2/ as it says its a hardware raid, im assuming it only requires 1x esata port on my imac right? so then, can it do jbod? if then, i purchased this one: http://eshop.macsales.com/item/OWC/MESATATBEK/ im guessing its a software raid? if thats the case, do i need to plug in BOTH esata ports to function or is this for jbod? i.e. can i software raid with one esata cable attached. again, forry for dumb questions!!