Abstract: An efficient disaster recovery system is constructed at three data centers. A data center includes: a business server for executing an application in response to an input/output request; a storage system for providing a first storage area storing data in response to a request from the business server; and a management server for managing a second data center or a third data center among the plurality of data centers as a failover location when a system of a first data center having the first storage area stops; and wherein the management server: copies all pieces of data stored in the first storage area to a second storage area managed by a storage system of the second data center; and copies part of the data stored in the first storage area to a third storage area managed by a storage system of the third data center.

Abstract: An efficient disaster recovery system is constructed at three data centers. A data center includes: a business server for executing an application in response to an input/output request; a storage system for providing a first storage area storing data in response to a request from the business server; and a management server for managing a second data center or a third data center among the plurality of data centers as a failover location when a system of a first data center having the first storage area stops; and wherein the management server: copies all pieces of data stored in the first storage area to a second storage area managed by a storage system of the second data center; and copies part of the data stored in the first storage area to a third storage area managed by a storage system of the third data center.

Abstract: A plurality of storage devices with different functions and storage pools with different attributes are automatically associated with each other.

Abstract: A plurality of storage devices with different functions and storage pools with different attributes are automatically associated with each other.

Abstract: A storage system comprising a first storage apparatus, a second storage apparatus, each storing data processed by an external apparatus, each of the first and second apparatuses including a pool of a plurality of unit physical storage areas for storing the data, the unit physical storage areas being classified into a plurality of storage tiers, a logical storage area in the first storage apparatus and the logical storage area in the second storage apparatus respectively including one or more of the storage tiers that are assigned to the respective logical storage areas, the storage system holding storage tier construction information of the first storage apparatus, and a data migration controller, when the data stored in the first storage apparatus are migrated to the second storage apparatus, transferring the storage tier construction information of the first storage apparatus to the second storage apparatus.

Abstract: Proposed is a storage apparatus capable of alleviating the burden of maintenance work when a failure occurs in a part configuring the storage apparatus. This storage apparatus includes multiple disk drives and spare disk drives, and multiple controllers. When a failure occurs, this storage apparatus determines the operability status of the storage apparatus based on failure information. When operation can be continued, the storage apparatus continues to operate without performing any maintenance such as part replacement, and if operation cannot be continued, data is migrated to another storage apparatus.

Abstract: Proposed is a storage apparatus capable of alleviating the burden of maintenance work when a failure occurs in a part configuring the storage apparatus. This storage apparatus includes multiple disk drives and spare disk drives, and multiple controllers. When a failure occurs, this storage apparatus determines the operability status of the storage apparatus based on failure information. When operation can be continued, the storage apparatus continues to operate without performing any maintenance such as part replacement, and if operation cannot be continued, data is migrated to another storage apparatus.