COMPUTER SYSTEM AND CONTROL METHOD OF THE COMPUTER SYSTEM

摘要

To create one pool by using a plurality of storage apparatuses and to provide virtual volumes common to each of the storage apparatuses to the server. The respective logical volumes 220 which the plurality of storage apparatuses 10 (1) to (3) comprise are mutually connected. The respective logical volumes are managed in the one pool 230. The virtual volumes 240 are created by utilizing the storage area in the pool. Each of the storage apparatuses shares at least part of the management information related to the page assignment for the virtual volumes with the other storage apparatuses.