My Macpro has been freezing and I have to cut the power. I'm worried that this could damage my other internal drives. 1. Can you eject internal drives like you can an external? Is it a bad idea for any reason to do this? 2. I was able to plug in my external and do a Time Machine backup. It is set to not copy application files. Can this copy over any of the problems I might be having that is causing the Mac to freeze? Thanks.