Patent ID: 7617318
Filing Date: 2009-11-10
Classification: G06F,H04L

Abstract:
1. A storage system coupled to a packet transfer device and a name management device, the storage system comprising: a control device comprising a memory; and a plurality of disk devices to configure a plurality of logical volumes under control of said control device; a plurality of storage ports coupled with the packet transfer device and the name management device, said packet transfer device including a plurality of packet transfer device ports coupled with a plurality of computers, and said name management device being configured to manage a domain including at least one of said plurality of computers and at least one of said plurality of logical volumes which is accessible from said at least one of said plurality of computers; wherein connection relation information which describes the connections among said plurality of storage ports included in said storage system, said plurality of computers, and said plurality of packet transfer device ports included in said packet transfer device is recorded in said memory; wherein said control device receives a computer identifier of a first computer of said plurality of computers and a logical volume identifier of a first logical volume of said plurality of logical volumes from a management terminal coupled with said storage system; wherein by referring to said connection relation information, said control device specifies an unused first packet transfer device port of said plurality of packet transfer device ports and a second packet transfer device port of said plurality of packet transfer device ports, said first packet transfer device port being coupled with said first computer, and said second packet transfer device port being coupled with said storage system; wherein said control device instructs said packet transfer device to allow packets to be transferred between said first packet transfer device port and said second packet transfer device port; wherein said control device transmits said computer identifier of said first computer and said logical volume identifier of said first logical volume to said name management device to register a domain including said first computer and said first logical volume in said name management device, so that said name management device informs said first computer of logical volumes including said first logical volume which belong to a same domain as said first computer when said first computer sends an inquiry to said name management device; wherein by referring to said connection relation information, said control device specifies a first storage port of said plurality of storage ports, wherein said first storage port being coupled with said second packet transfer port; wherein said control device assigns said first storage port to said first logical volume to allow access to said first logical volume via said first storage port; and wherein when the control device receives a request to add a packet transfer device, the control device is configured to: receive, from the added packet transfer device, identifiers of packet transfer ports of the added packet transfer device; get MAC addresses of each packet transfer port of the added packet transfer device, wherein each packet transfer port is coupled to one of said plurality of storage ports; receive, from the added packet transfer device, information about relationships between each of the MAC addresses of each of the packet transfer ports of the added packet transfer device and each of the identifiers of each packet transfer port of the added packet transfer device; generate information representing connection relationships between said plurality of storage ports and said plurality of packet transfer ports based on the received identifiers, the MAC addresses, and the received relationship information; and add the generated information to said connection relation information.