This question seems difficult to me, but i guess there are some experts here that can help me. I have a MacBook Pro 13" 2009, with an SSD and a HDD replacing the superdrive. It worked in a way before that, the data hdd, turned off by itself when not in use. that way, not only that it will use less power, but it makes much less noise, as the hdd is as loud as the fan at 2000RPM. Does anyone knows where can i control that feature of turning of the HDD if not in use? I already turned off dropbox and hazel, as they had to use the hdd. Thank you so much, any help is welcome.