Patent ID: 8762669
Filing Date: 2014-06-24
Classification: G06F

Abstract:
1. A computer system including a host computer and a first storage apparatus for providing to the host computer a first storage area to be used for reading and writing data, wherein the host computer identifies the first storage apparatus based on apparatus-specific information of the first storage apparatus that is notified from the first storage apparatus in response to a configuration information acquisition request sent from the host computer to the first storage apparatus, comprising: a second storage apparatus to which data stored in the first storage area of the first storage apparatus is migrated; and a management apparatus for managing data migration from the first storage apparatus to the second storage apparatus, wherein the management apparatus controls the first and/or second storage apparatus so as to synchronize a data content in the first storage area of the first storage apparatus and a data content in a second storage area of the second storage apparatus associated with the first storage area, and acquires the apparatus-specific information of the first storage apparatus from the first storage apparatus and notifies the acquired apparatus-specific information to the second storage apparatus, and wherein the second storage apparatus sets, as virtualization information, the acquired apparatus-specific information of the first storage apparatus notified from the management apparatus to a path connecting the second storage area and a second port associated with the second storage area in the second storage apparatus, and notifies the virtualization information as its own apparatus-specific information to the host computer in response to the configuration information acquisition request from the host computer, wherein the first storage apparatus provides to the host computer a first virtual storage area which is a virtualization of a third storage area in an externally connected third storage apparatus, wherein the management apparatus acquires from the first storage apparatus the apparatus-specific information of the first storage apparatus including information related to a third port connected to the first virtual storage area in the first storage apparatus, and notifies the acquired apparatus-specific information to the second storage apparatus, and wherein the second storage apparatus sets, as the virtualization information, the apparatus-specific information notified from the management apparatus to a path connecting a second virtual storage area provided in correspondence with the first virtual storage area in the first storage apparatus and a fourth port associated with the second virtual storage area in the second storage apparatus, and notifies the virtualization information as its own apparatus-specific information to the host computer in response to the configuration information acquisition request from the host computer.