A memory controller, a storage device (SD), a server virtualization system, and an SD recognizing method performed in the server virtualization system are provided. The memory controller includes a processor configured to generate a plurality of different pieces of identify device (ID) data in response to an identify device command received from a host so that the host recognizes a single physical SD as a plurality of physical storage devices (SDs), and a host interface which transmits the generated plurality of pieces of identify device data to the host.