I bought a Seagate Expansion Drive, 2 TB. One of its features is that after a certain amount of time, it goes into some kind of energy save mode, where it's essentially unreadable, but still detectable. The problem is that I can't get it back online. I also can't unmount it then mount it, because after unmounting it, I can't see it anywhere. The only way I can use it again is if I unplug its power suply, and reconnect it.

I'm assuming that I wouldn't have problems with it if I were using Windows, since it's apparently made for Windows.

Does anybody know any way, through terminal or other means, to get the thing back online from energy save mode without having to unplug it?

Thank you very much.