I was wondering if you could use the the PI as a disk cloning tool. Or even use it to repair an iffy drive, done this using RIP linux from a PC. Or data recovery device done this via a PC too but apart from taking ages to recover over 200 large photos it tied up an office PC for a good 36 hours.
I guess I would need a powered hub and a USB to Sata interface (and use an external power supply that plugs into the interface). Then the other problem would be are there any drivers needed for it or would it be plug and hopefully play ( I call it plug and pray)
So is it Possible, A Definite Maybe, Not sure or No Way.