Hi people, I purchased a 1TB Lacie External HDD (USB 2.0) to run Time Machine. Unlike the other external HDD that I built years ago, the LaCie drive does not spin down even when it is not being accessed. This is annoying because my iMac runs silently but the LaCie drive is quite loud with the HDD spinning. Is this normal for an external HDD? How can I make it spin down when it's not being used? Having said above, the LaCie drive does spin down when I put the iMac to sleep.