Hi there, I just upgraded my MBP with an SSD in the optibay (HDD in the original spot because of noise, vibration and SMS). But as I don't need the HDD all that often I've come to use the script that's out there to spin down the drive, which works. But when you put the MBP to sleep and wake it back up the hard drive is still unmounted but the hard drive does spin up. If I run the script again it spins down again. Is there any way to permanently spin down the drive ? I'm guessing no, unfortunately. If not, I could use something like SleepWatcher to execute the script on wake so that I don't need to do it manually. If I were to do that, would it be possible to run the script only while on battery power? (can I do that with AppleScript? A sort of "if on battery power then do...") I don't need the drive to spin down while plugged in. I really want to have the HDD spun down all the time as I use the battery a lot and it does take quite a hit with the HDD on.