Re: moving data question
Right click your desktop, properties, screensaver tab, power button, turn off hard drives after .... select your timeframe.
This will spin your slave drive down after the time selected, unfortunately there is no way to discriminate between drives, it is a global setting. Still, it works, as your main drive is usually active. There is some delay as it spins up again to transfer stuff to it, turn off the pc etc, but it will work.