i have 2 500gb external hard drives hooked up to my server. they are they for backing up whenever i feel the need to. i don't want them spinning all the time. they shut off after a couple of hours, but i just noticed that they turn back on even when i don't access them. so, i click to safely stop and remove them. but the only way to get them to come back on is to cycle the usb or power. any way to do this remotely?