STORAGE APPARATUS HAVING MULTIPLE STORAGE CONTROLLERS CONNECTED WITH MULTIPLE PATHS AND METHOD FOR VERIFYING ITS CONNECTIONS

摘要

Degradation of data transfer performance is restrained during data transfer for mirroring between first and second controllers. The first and second controllers are connected with a first path for connecting a second port of a first switch unit on the first controller to a second port of a first switch unit on the second controller, and with a second path independent of the first path, for connecting a second port of a second switch unit on the first controller to a second port of a second switch unit on the second controller.