Hi all,
I recently put together a NAS based on a Raspberry pi (model 2B) with 2 hard drives. It currently lives in a shoebox and works pretty well.
For those interested here is some rough schematics of the setup. The data connection is done by some USB to SATA adapters (ebay link).
There are still some some issues with power management. Hard disks keep spinning when the raspberry pi is shut down.
I am considering cutting the HDD 12V via a relay activated by a GPIO pin.
Do you have a similar setup and success with 3.5 HDD?