Volume management method and apparatus

摘要: A volume management method is proposed for setting at least a logical over plurality of physical storage devices by taking requested performance other volumes into consideration. The comprises the steps of: receiving creation request specifying capacity and average performance; forming judgment as to whether or not there exists an unoccupied area satisfying throughout devices; all volumes, which include existing each sharing any with be created created, satisfy its referring information on means if determined exist; performance.