sön 2014-05-25 klockan 15:26 -0400 skrev Stefan Monnier:
these are not nearly as reliable as true SATA. Second problem is the usual poor support for things like S.M.A.R.T or control of spin-down-when-idle.
Depends a lot on the USB->SATA bridge used. Both smartctl and hdparm works fine with at least one of mine to control both SMART settings and access to security feature functions. Haven't tried spindown settings, but if security feature group works then I would assume the spindown parameter settings would work as well.
Regards Henrik