Patent ID: 7373670

Claim:
An access restriction information setting method which sets up access restriction information on a storage device, in a storage area network system having the storage device which determines whether or not an access request to a volume is permitted in accordance with access restriction information which is set up on a port which receives the request, and a plurality of host computers which transmit access requests to said storage device through a first network, comprising: a first step for obtaining first access restriction information and information of a volume which are set up on each port of a first storage device, through a second network, said first access restriction information including information of access permission from a first host computer and access denial from a second host computer; a second step for obtaining attribute information including a port type and a status of utilization of each port of a second storage device, from said second storage device through said second network; a third step for selecting a target port of said second storage device which is utilized for reception of an access request to a volume of said first storage device from said first host computer; and a fourth step for setting up, on the target port of said second storage device which is selected in said third step, second access restriction information based on said first access restriction information of a port of said first storage device to which a volume, of which the port is utilized for an access, is assigned so that said first host computer is permitted to access said first storage device via the target port of said second storage device, while said second host computer is not permitted to access said first storage device via the target port of said second storage device.