Patent ID: 8347049
Filing Date: 2013-01-01
Classification: G06F

Abstract:
1. A storage system comprising: a host computer; a storage apparatus connected to said host computer via a communication network and for storing information accessed by said host computer; and a management computer for managing said storage apparatus via said communication network; wherein said storage apparatus includes: a primary storage unit for storing write data from said host computer as a primary volume; a secondary storage unit for storing copied data of write data stored in said primary storage unit, as a secondary volume; and a status management unit for collecting and managing status information of a plurality of copy pairs from said primary storage unit and said secondary storage unit, with each copy pair of the plurality of copy pairs, including a copy source primary volume and a copy destination secondary volume, and with the status information including both copy group summary status information providing a status of a group of the plurality of copy pairs, and detailed status information detailing a status of a copy pair included in the group; and wherein said status management unit monitors the status information of said plurality of copy pairs, and regarding the copy group summary status information and the detailed status information, said status management unit: