Patent ID: 7809909

Claim:
A remote copy network coupled to a first storage system and a second storage system, the remote copy network comprising: a computer coupled to the first storage system; a first edge device included in the first storage system; a second edge device included in the second storage system; a network coupled to the first edge device and the second edge device; and a management server coupled to the first edge device and the second edge device via the network, wherein the management server sends configuration information (WWN) of the first storage system to the computer, wherein the computer sends a remote copy I/O request to copy data from the first storage system to the second storage system based on identification information, wherein the first storage system refers to pair information that indicates storage system to which data is transferred and sends the remote copy I/O request to the first edge device, wherein the first edge device creates log information based on the remote copy I/O request and sends the log information to the second edge device, wherein the second edge device extracts the remote copy information from the log information and sends the extracted remote copy I/O request to the second storage system.