> I have. But what you have is an abstract range of numbers which apply > some sort of power management, but without any definition of what those > numbers mean, other than more or less power management. You don't get > something like - if the drive has been idle for five minutes, or X > seconds, you can get the drive to park the head. Some drives have that, some don't. Most also honour the specific timeout setting via hdparm -S. (-S 0 being don't stop) Alan