Having my external Time Machine HD plugged in all the time is really bugging me. Basically whenever the computer tries to access the drive, it stalls the whole machine for 2-3 seconds while the drive wakes up (you can hear the spindle slowly whir up to full speed.) I obviously realise that with traditional HDs this is a necessary evil when it actually NEEDS to access the HD and it's asleep, but why does it stall my computer when it boots up? Or while I'm web browsing? Surely if my boot drive is designated as the internal HD, why does it wait for the slow external HD to wake before it starts booting? This isn't a new issue, I've had it with every computer for as long as I can remember, I just don't understand why nobody has ever addressed it.