Data storage device and data processing system having the same

The data storage device is disclosed. Comprises an interface connected between the out storage devices, said data storage device controller, and a scale-out storage devices and the controller and the scale. Said controller is a command type and a first command that includes the command information having a parameter for the command-type through the interface of the scale - and sent to the out storage device, the scale-out storage device corresponding to the first command, performs work for. The scale-out storage device is a scale connected to said interface includes a non-volatile memory connected to the controller out-volatile memory, connected to the scale-out controller-out controller, and the scale.