On Jan 4, 2008, at 2:18 PM, David Dyer-Bennet wrote:
You *could* use an X10 computer-controlled power controller and a couple of appliance modules to put the power to the two external drives under computer control. Or you could use an independent external timer (have to have a 48-hour or better timer though to alternate days).
My experience with X10 gear suggests it's likely to be less reliable than remembering to do it manually every morning. ;)