Hitachi, Ltd.

Misako Kono

Nobuhiro Maki

Junichi Hara

Masayasu Asano

Hironori Emaru

Tsukasa Shibayama

Wataru Okada

An embodiment of this invention is a storage management system including a processor and a storage device to manage a storage system having one or more copy functions. The processor locates data designated to determine a backup method. The storage device stores copy function management information on the one or more copy functions of the storage system. The processor refers to the copy function management information to ascertain the unit of copy operation of each of the one or more copy functions. The processor determines a candidate for a copy function of the storage system to be used to back up the designated data depending on the data configuration in a volume holding the designated data and the unit of copy operation of the candidate for the copy function.

Storage management system and storage management method with backup policy

A management system for managing an acquisition of information on multiple resources by multiple information acquisition apparatuses configured to acquire information on the multiple resources based on an information acquisition indication, is configured. The management system stores information for specifying a resource group, which is a group of multiple resources targeted for acquiring information at the same time points. The management system sends to each of multiple information acquisition apparatuses, which acquire information on multiple resources of a certain resource group, an information acquisition indication defining a timing for acquiring information from the resource of the certain resource group so that the information acquired from the multiple resources of the certain resource group are information at approximately the same time points. The information acquisition apparatus receives the information acquisition indication, and is able to acquire information on the resource of the certain resource group based on this information acquisition indication.

Management system and information acquisition method

Storage management system and storage management method

Operation of an environment that supports both host-based replication and array-based replication is realized. According to the present invention, data in the first storage area is copied first to the second storage area using an array-based replication engine. In this case, the execution result of the replication is managed using a flag from which the copy timing can be known. In addition, data in the first storage area is copied to the third storage area using a host-based replication engine, and further, data in the third storage area is copied to the fourth storage area. Then, when data in the second storage area is restored to the first storage area, data in the fourth storage area is returned to the third storage area so that the third storage area has data of the same time as the second storage area (see).

Computer system and system control method

A backup is completed within a backup window designated by a user. When copying data in a first storage area, which is a backup target, to a second storage area, the capacity of a medium serving as a third storage area which is sufficient to complete a backup within the backup window, is calculated based on information about a differential bitmap describing an area in the second storage area to which the relevant data is copied from the first storage area, configuration information about a storage system where the storage areas are stored, and performance information about media constituting the storage areas; and differential data is copied using the second storage area and the third storage area; and the data written to the third storage area is copied to the second storage area.

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Yokohama, Japan

Misako Kono