Patent ID: 7290108
Filing Date: 2007-10-30
Classification: G06F

Abstract:
1. A system comprising: a first storage system providing plural first logical volumes including a real logical volume and a virtual logical volume with a host computer as access targets; a second storage system having at least one second logical volume; and a management computer coupled to the first storage system and the second storage system to manage the system, wherein the real logical volume is a first logical volume configured from at least one disk of the first storage system, the virtual logical volume is a first logical volume associated with the second logical volume, and the second logical volume is configured from at least one disk of the second storage system, wherein when the first storage system receives an access request to the virtual logical volume, the first storage system is configured to access an associated second logical volume, wherein the management computer has information associated with a program for volume guard, which each of the first storage system and the second storage system has, and wherein the management computer is configured to receive a request to guard one of the plural first logical volumes, refer to the information, check whether a target first logical volume of the request is a real logical volume or a virtual logical volume, in case of the virtual logical volume, generate at least one option to guard the target first logical volume by using at least one of programs for volume guard, which at least one of the first storage system or the second storage system has, and display the at least one option.