Have an early 2011 15" macbook pro. Going to be sending it to apple for logic board/video/graphic problems. Machine will not boot up. Tried safe mode etc.. anyway taking out the hard drive to get it copied then reinstall original before I send it off. It looks like to me it has a dual hard drive system, maybe I am wrong. But do I just need to get the main hard drive copied or does the second drive also need to come out. Removed one on the bottom in photo, wondering abut the one directly above it. Early 2011 A1286 15" Thanks.