The Raspberry-Pi can't perform that good because it lacks USB-3 or something else with good performance (it only has USB-2)... It is not a very good choice for

The Raspberry-Pi can't perform that good because it lacks USB-3 or something else with good performance (it only has USB-2)... It is not a very good choice for a file server. The ODROID-XU4 seems like a much better choice even if it is double the price.