Method for controlling storage system, and storage control apparatus

摘要

A method for controlling a first storage control apparatus (10) coupled to a host computer (30) and a second storage control apparatus (20) comprises transmitting a request of information concerning a logical volume of said second storage control apparatus (20) to said second storage control apparatus (20); receiving a response from said second storage control apparatus (20), storing second information (214) of said logical volume of said second storage control apparatus (20) according to said received response, said stored second information being related to first information (212) of a logical volume of said first storage control apparatus (10); receiving a first data input/output request from said host (30); and if said request is to be handled by said second storage control apparatus (20), transmitting a second data input/output request corresponding to said first data input/output request, to said second storage control apparatus (20).