Spindown is a daemon to spin down idle disks and thus save energy and give the disks a longer lifetime. It also works with USB disks and hot-swappable disks because it uses the device ID to identify the disk instead of the device name (such as hda or sdb). This means that it doesn't matter if the disk is swapped while the daemon is running. License: GNU General Public License v3 Changes:
Now you can set the spindown time for every individual disk, and reload the settings by sending a SIGHUP to spindownd.