Hitachi, Ltd.

Hitachi Vantara Corporation

Tomoe Engineering Co., Ltd.

Masahiro Ide

Shinichi Kasahara

Osamu Torigoe

Tetsuya Kojima

Mamoru Hasegawa

Tsuyoshi Nishino

Hiroyuki Kawato

Katsuya Ando

Tomohiro Yoshizawa

A storage system includes a storage device, a processor, and a storage unit. The processor provides a volume configured on the storage device to a mainframe server. The processor manages data handled by an open-architecture server, using a first slot having a first slot length as a unit, in the volume, and manages data handled by the mainframe server, using a second slot having a second slot length shorter than the first slot length as a unit, the first slot storing therein a predetermined number of the second slots, in the volume. The processor performs a process using one of the first slot and the second slot as a unit, depending on the type of the process.

Storage system, data processing method of storage system, and data processing program of storage system

A decanter centrifuge that carries out solid-liquid separation by centrifugal force on an object to be processed that is fed into a rotating bowl and designed from a solid and a saturated solution wherein that solid is dissolved, and discharges solid phase components from a solid discharge opening and discharges liquid phase components from a solvent discharge opening thereof by rotationally operating a screw conveyor disposed within the rotating bowl, the decanter centrifuge being provided with a dilution solvent supply unit for supplying, during centrifuging of the object to be processed, dilution solvent that reduces the concentration of the saturated solution to a discharge path, which is a discharge path for saturated solution moving within the rotating bowl, and which is designed closer to the solvent discharge opening side-than a chamber for supplying the object to be processed.

Decanter centrifuge having a dilution solvent supply unit and method for operating a decanter centrifuge

A storage system according to the present invention includes a first storage device configured to receive a command from a command issuing apparatus, a second storage device configured to manage target data of the command, and a third storage device configured to form a copy pair with the second storage device for the target data and store the target data. When the target data is forwarded from the first storage device to the third storage device through the second storage device and stored in the third storage device, the second storage device stores the target data therein so that the target data is redundantly stored in the second storage device and the third storage device.

Storage system, storage device, and storage system control method for duplicating data with copy pair

The present invention makes it possible to process a plurality of commands included in a series of communication processes in a shared manner by a plurality of circuit parts, thereby improving reliability and processing performance. A semiconductor integrated circuit for communication () includes: a plurality of first circuit parts () that are responsible for communicating with a higher-level apparatus (); a plurality of second circuit parts (), which analyze a command included in a series of communication processes, and which share the processing of a plurality of commands included in the series of processes with another second circuit part; a common connector () for connecting the first circuit parts to the second circuit parts; and a failure management part (), which, when a failure has occurred in any circuit part, causes the stoppage of processing by a stop-target circuit part that must stop processing.

Semiconductor integrated circuit for communication, storage apparatus, and method for managing failure in storage apparatus

A storage apparatus includes a channel control unit, a storage device, and a processor. The channel control unit includes a plurality of operation units. The processor specifies, when receiving a request for read of a plurality of pieces of element data from a host computer, the plurality of pieces of element data to the plurality of operation units, respectively. The plurality of operation units respectively reads the plurality of pieces of element data from the storage device, calculates a plurality of partial codes that is a plurality of guarantee codes on the basis of the plurality of pieces of element data, and transmits the plurality of partial codes to the processor. The processor calculates, on the basis of the plurality of partial codes, a sequence code that is a guarantee code of sequence data including the plurality of pieces of element data which is concatenated.

Growing community of inventors

Tokyo, Japan

Masahiro Ide