I've searched on this for a while and can't seem to get the recommended solutions working. I have two external FW hard drives that go to sleep more than I want. When these drives go to sleep I'm left with beachballs, system slowdowns and errors in iTunes. So, I want to keep the drives awake. I wrote an Automator app to write a small text file to each drive. When I double click the app manually from Finder, it works fine. But I can't seem to schedule this app. I've tried Lingon and Cronnix. Neither work. The schedule just doesn't run. Maybe I have the settings wrong, not sure. I want this to run once ever hour, every day. Can anyone help me get this working?