Fujitsu Corporation

Naohiro Takeda

Akira Saito

Norihide Kubota

Yoshihito Konta

Yuji Tanaka

Tsukasa Makino

Yoshinari Shinozaki

Hiroaki Ochi

Yusuke Suzuki

Marie Abe

Yusuke Kurasawa

Tomoaki Tsuruta

Toshio Kikuchi

Marino Kajiyama

Yuichi Ogawa

A storage control apparatus includes a memory to store meta-information associating a position of a logical area with a position of a physical area, and a processor to, when a first data block including data, a check code corresponding to the data, and first information related to a position within the logical area is stored in the physical area, and a second data block including the data, the check code, and second information related to a position within the logical area is written in the logical area, obtain a first position at which the first data block is present in the physical area, based on meta-information of the first data block in the meta-information, associate the first position as a position of the physical area in meta-information of the second data block in the meta-information with the position to which the second data block is written in the logical area.

Storage control apparatus and storage control method for deduplication

A storage control apparatus includes a memory configured to store meta-information for associating addresses of a logical area and a physical area with each other, and a processor coupled to the memory and configured to read out first meta-information corresponding to a first logical area from the memory, specify a first address of the physical area corresponding to a copy source address of the data based on the first meta-information, read out second meta-information corresponding to a second logical area that is set as a copy destination of the data in the logical area from the memory, specify a second address of the physical area corresponding to a copy destination address of the data based on the second meta-information, and execute copy of the data by associating the first address and the second address with each other as storage areas of the data.

Storage control apparatus and storage control method

A storage system, a storage managing device, and a storage managing method are provided. The storage system includes plural mount devices in which storage devices are mounted and includes a router connected to at least two loops in which plural mount devices are cascade-connected to one another, an initialization completion determining unit that determines whether an initialization processing of obtaining identification information of the storage devices is completed when the initialization processing concerned is executed by using at least one loop of the loops connected to the router, an initialization time determining unit that determines whether an execution time of the initialization processing elapses a predetermined time based on a determination result of the initialization completion determining unit, and a time extending unit that extends the predetermined time when the determination result indicates that the initialization processing completed and the initialization processing is executed by the plural loops.

Storage system, storage managing device and storage managing method

A storage control apparatus for transmitting data to and receiving data from a plurality of storage devices connected to the same interface, the storage control apparatus includes a memory configured to store a management table registering a burst transfer length of each of the plurality of storage devices, the plurality of storage devices including a first storage device having a first burst transfer length that is a minimum in the management table and a second device having a second burst transfer length; an adjusting controller configured to adjust the second burst transfer length in input and/or output processing if the second burst transfer length registered in the management table is different from the first burst transfer length; and a data transfer controller configured to issue a command for a data transfer to the second storage device on the basis of the adjusted second burst transfer length.

Storage control apparatus, storage system and method

Growing community of inventors

Zushi, Japan

Naohiro Takeda