Patent ID: 8234449
Filing Date: 2012-07-31
Classification: G06F

Abstract:
1. A storage system comprising: a first disk array; and a second disk array, the first disk array comprising: a first port being coupled to a second port of the second disk array; a first port controller controlling the first port; a plurality of disk devices to store data; and a controller managing a plurality of logical units on the plurality of disk drives, wherein the first port controller controls the first port so as to execute, in a time-sharing manner, data transfer corresponding to an initiator task and data transfer corresponding to a target task, the initiator task is generated by the first port controller to execute the data transfer between the first disk array and the second disk array when the controller of the first disk array sends an access request to the second disk array, the target task is generated by the first port controller to execute the data transfer between the first disk array and the second disk array when the first port controller receives an access request from the second disk array.