Patent ID: 8069323
Filing Date: 2011-11-29
Classification: G06F

Abstract:
1. A storage system having a first storage device, a second storage device and a plurality of lines for connecting the first storage device and the second storage device, wherein the first storage device comprises a logical volume accessed from a host computer; a path management table for recording status of a plurality of paths interposing the plurality of lines between the first storage device and the second storage device; a remote copy program for distributing data of the logical volume into the plurality of paths on the basis of the respective status of the plurality of paths recorded on the path management table, to perform a remote copy from the first storage device to the second storage device; and a CPU for executing the remote copy program, wherein, in the first storage device and the second storage device, virtual ports in which a plurality of IP addresses can be set in a physical port are created, and wherein IP addresses of routers traversing different lines for the respective virtual ports are registered as default gateways, thereby creating different paths for the respective lines.