Patent ID: 7428584

Claim:
A method for outputting information of a network system by a management server, wherein the network system includes a first storage system having a first controller and a first real volume managed by the first controller; a second storage system having a second controller and a second real volume managed by the second controller; a virtualization system coupled to the first storage system and the second storage system, the virtualization system configuring a virtual volume by using the first real volume of the first storage system and the second real volume of the second storage system, and providing the virtual volume as one access target via a port of the virtualization system; a computer coupled to the virtualization system and accessing the virtual volume via the port of the virtualization system, and the management server, the method comprising steps of; receiving, by the management server, relation information between the computer and the virtual volume accessed from the computer; receiving, by the management server, real volume information from the first storage system and the second storage system, the real volume information including information indicating the first real volume of the first storage system and the second real volume of the second storage system; receiving, by the management server, virtual volume information from the virtualization system, the virtual volume information including information indicating a relation among the one virtual volume, the first real volume and the second real volume used for configuring the virtual volume, and the port of the virtualization system via which the virtual volume is accessed from the computer; and outputting, by the management server, information indicating a correspondence between a virtual relation and a real relation based on the relation information, the real volume information, and the virtual volume information, wherein the virtual relation is a relation among the virtual volume, the port of the virtualization system, and the computer accessing the virtual volume via the port, and the real relation is a relation among the first real volume and the second real volume used for configuring the virtual volume, the port of the virtualization system, and the computer, so that correspondence between a virtual access path from the computer to the virtual volume and a real access path from the computer to the first real volume of the first storage system and the second real volume of the second storage system is displayed by the management server.