Hi. I have a mac pro with 4Tb of storage and am about to buy a 4Tb external drive to use with Time Machine. I want to know, if I use this with Time Machine to backup the Mac Pro, will I be able to plug it into my Macbook Pro and boot from it? The reason being that my Macbook Pro does not have a 4Tb drive or anything even close, and it would be useful to have a drive that mirrors the Mac Pro. Is this possible? Or would I have to clone the Mac Pro to the 4Tb drive instead and use it that way?