Fujitsu Corporation

Takashi Fujihara

Atsushi Endo

Tomonori Suzuki

Yoshihisa Aono

A storage control apparatus is configured to access a physical storage region of a storage apparatus corresponding to a logical address of a logical storage region, when an error is detected, specify a physical address of the physical storage region, for each of a plurality of regions generated by dividing the physical storage region using a plurality of division conditions different from each other, specify a number of times in which the error is detected, specify a recovery target region in which the number of times is equal to or greater than a first value, specify a first division condition generating the recovery target region, select, from a plurality of recovery methods, a first recovery method corresponding to the first division condition, and cause the storage apparatus to recover a first logical address in the logical storage region corresponding to the recovery target region by using the first recovery method.

Storage control apparatus, method and non-transitory computer-readable storage medium

A storage control device includes a processor which performs first copy of copying first data stored in a first storage device into a first backup region upon detecting a failure presage in the first storage device. The processor performs first write of writing second data specified in a first write request to the first storage device and second write of writing the second data into the first backup region upon receiving the first write request while performing the first copy. The processor performs second copy of copying third data stored in the first backup region to a second storage device upon completing the first copy. The processor performs third write of writing fourth data specified in a second write request to the second storage device in place of the first storage device upon receiving the second write request after completion of the second copy.

Storage control device and storage apparatus

An information storage device includes a storage unit to which a storage region is assigned, a first management information storage unit that stores address information indicating an address range of the storage region in association with identification information identifying the storage region, and a processor that executes a procedure that includes acquiring the address information corresponding to the identification information from the first management information storage unit and accesses the storage region corresponding to the address information and rewriting the identification information stored in the first management information storage unit.

Information storage device and method

A storage system includes a storage device that includes a storage medium, and a control device that is connected to an upstream-side device, scans the storage device, writes the data in the storage device, and reads the data from the storage device, wherein the control device determines whether or not the data is being written in or read from the storage device, wherein when the data is being written or read, the control device scans the storage medium at intervals of a first time in a first direction that is either a direction in ascending order of logical block addresses of the storage medium or a direction in descending order of the logical block addresses of the storage medium, and wherein when the data is not written and read during the time period, the storage device scans the storage medium in a second direction.

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Kawasaki, Japan

Takashi Fujihara