Spin down the hard drive when idle
1. Install the Noflush daemon. Noflushd will automatically spin down the LinkStation hard drive after a defined period of inactivity. Use the command:
apt-get install noflushd
2. You will be prompted to enter a spin down time. The default timeout is 5 minutes (which is probably too low for most people).
3. You may modify /etc/default/noflushd if you wish to change the spin down time.
4. An alternate method for spinning down the hard drive is documented at Articles/DebianHdparm.