Stop using a SATA drive

[Quartz]

>> You can likely send commands to USB disks for "plz sync and power down thx".
>
> But it will be something the _device_ has to implement,
> I'd say.

FWIW, I definitely have seen a usb->ide/sata adapter park the heads and 
power off the drive when I eject it in OSX. I can't remember if this was 
a feature of the adapter or the drive or a combination of both, I'd have 
to gather up all my adapters and try a few disks.