Patent ID: 7707199
Filing Date: 2010-04-27
Classification: H04L

Abstract:
1. A management system for integrating management of a plurality of storage apparatuses connected via a communication network, the management system comprising: a plurality of management computers including a first management computer and a second management computer, wherein each of the plurality of management computers comprises a first processor and a first storage area, and manages some of a plurality of logical storage apparatuses included in some of the plurality of storage apparatuses, and wherein each of the plurality of storage apparatuses includes a second processor and a second storage area which forms at least one of the plurality of logical storage apparatuses; an integrated management computer which is connected via communication paths to the plurality of management computers and manages the plurality of management computers, wherein the integrated management computer collects, from the first management computer, first management information which indicates a first logical storage apparatus which is managed by the first management computer, and collects, from the second management computer, second management information which indicates a second logical storage apparatus which is managed by the second management computer, wherein the integrated management computer stores the collected first management information and the collected second management information as integrated management information, wherein when the integrated management computer receives an operation request for the first logical storage apparatus from a management terminal, the integrated management computer selects, by referring to the integrated management information, the first management computer which manages the first logical storage apparatus corresponding to the operation request, and sends the operation request to the selected first management computer, wherein the first management computer, which receives the operation request from the integrated management computer, calculates a post requested operation storage capacity of the first logical storage apparatus, which is managed by the selected first management computer, and wherein if the calculated storage capacity exceeds a threshold value, the first management computer notifies the integrated management computer that the post requested operation storage capacity exceeds a threshold value, and the integrated management computer instructs the second management computer to send the second management information to the first management computer so that the first management computer can manage the second logical storage apparatus, wherein each of the plurality of management computers comprises: wherein, the integrated management computer sets one of the selected plurality of management computers as a migration destination management computer and sets another selected management computer as a migration source management computer, and wherein the integrated management computer comprises: