A storage system according to an embodiment of the present invention has a storage and a controller. The storage has an interface for connecting it to a storage of another storage system via a communication line, and a remote copy module transferring predetermined data to the another storage system,...http://www.google.fr/patents/US7085954?utm_source=gb-gplus-shareBrevet US7085954 - Storage system performing remote copying bypassing controller
Storage system performing remote copying bypassing controller