In Yosemite: External Hard Drives Won't Spin Down
Since installing Yosemite, my external (and perhaps internal) drives won't spin down in energy saver mode: 'Put hard drives to sleep when possible.' I'm using Seagate Barracuda 2TB internal drives in external Voyager Q drive bays. They seem to be getting a little too warm, I can also feel them spinning.
Thanks!
Steve
Mac Pro (Mid 2010), OS X Yosemite (10.10.2)