METHOD OF OPERATING NETWORK-BASED STORAGE DEVICE, METHOD OF OPERATING STORAGE SYSTEM USING THE SAME AND STORAGE MODULE PERFORMING THE SAME

In a method of operating network-based storage devices, a first storage device having a first local key among a plurality of storage devices is set as a first main storage device. The storage devices are connected to each other through a network. A volume of at least a part of the plurality of storage devices is set and managed by the first storage device based on a first control signal received from an external host device. A second local key is received by the first storage device from a second storage device having the second local key among the plurality of storage devices. The first local key and the second local key are transmitted by the first storage device to the external host device.