DriveAlive keeps external drives/docking stations from spinning down. DriveAlive creates a dummy text file in the root of each drive specified on the command line, and overwrites it every 5 minutes to prevent idle time-out. Get DriveAlive and take it for a spin to see what it can actually do for you!
Usage: DriveAlive X: Y: Z: Running DriveAlive with no params displays a usage dialog, then quits. The dummy text file, named drive_alive_dummy.txt, on each drive is deleted on software exit.

The license of this software is Freeware, you can free download and free use this disk management software.