公开(公告)号：US20170322845A1

公开(公告)日：2017-11-09

申请号：US15531795

申请日：2015-06-01

Applicant: Hitachi, Ltd.

Inventor： Shimpei NOMURA ,  Akifumi SUZUKI ,  Mitsuhiro OKADA ,  Satoshi MORISHITA

IPC: G06F11/10 ,  G06F3/06

CPC classification number: G06F11/1076 ,  G06F3/0613 ,  G06F3/0659 ,  G06F3/0689 ,  G06F12/0804

Abstract: A purpose is to speed up a write process with a parity update. An information processing system includes storage devices constituting a RAID group, coupled to one bus and communicating with each other. Each of the storage devices includes a device controller and a storage medium for storing data. The storage devices include a first storage device storing old data and a second storage device storing old parity associated with the old data. A first device controller of the first storage device creates intermediate parity based on the old data and new data for updating the old data and transmit the intermediate parity to the second storage device specifying the second storage device storing the old parity associated with the old data, and a second device controller of the second storage device creates new parity based on the intermediate parity and the old parity.

公开(公告)号：US20170286507A1

公开(公告)日：2017-10-05

申请号：US15511223

申请日：2015-07-22

Applicant: Hitachi, Ltd.

Inventor： Koji HOSOGI ,  Mitsuhiro OKADA ,  Akifumi SUZUKI ,  Shimpei NOMURA ,  Kazuhisa FUJIMOTO ,  Satoru WATANABE ,  Yoshiki KUROKAWA ,  Yoshitaka TSUJIMOTO

IPC: G06F17/30

CPC classification number: G06F16/256 ,  G06F16/245 ,  G06F16/90335

Abstract: A database search system receives a command and searches for data, which meets a search condition specified on the basis of the received command, in a whole database which is a database as an entity. The database search system generates a virtual database which is a list of address pointers to the found data and stores the generated virtual database.

公开(公告)号：US20210335114A1

公开(公告)日：2021-10-28

申请号：US17240337

申请日：2021-04-26

Applicant: Hitachi, Ltd.

Inventor： Takuto SATO ,  Takehiro NIIKURA ,  Mitsuhiro OKADA ,  Hiroki OHASHI ,  Takayuki AKIYAMA ,  Katsuyuki NAKAMURA ,  Mohammad OSAMH ADEL AL-NASER ,  Sheraz AHMED

IPC: G08B21/04

Abstract: To be capable of efficiently transmitting appropriate information on the motion improvement to a person in motion. A motion evaluation system includes a sensor unit, an information processing device, and an information presentation device. The information processing device includes a communication device, a storage device, and an arithmetic device. The arithmetic device acquires motion data acquired by observing a user through the use of a sensor via the communication device, checks the motion data against information about the correctness of motions in the reference information, determines a state of motion of the user, specifies a motion in a state to be improved as an improvement, check the motion data after the motion corresponding to the improvement against information about busy levels of the user to specify a busy level of the user, and outputs, as improvement suggestion information about the improvement, information with different contents at each of multiple times to an information presentation device based on the improvement and a rule predetermined according to each situation of the busy level.

公开(公告)号：US20180011812A1

公开(公告)日：2018-01-11

申请号：US15545461

申请日：2015-02-25

Applicant: Hitachi, Ltd.

Inventor： Satoshi MORISHITA ,  Mitsuhiro OKADA ,  Akifumi SUZUKI ,  Shimpei NOMURA

IPC: G06F13/42 ,  G06F12/02

CPC classification number: G06F13/4221 ,  G06F3/0613 ,  G06F3/0635 ,  G06F3/0658 ,  G06F3/067 ,  G06F12/0215 ,  G06F13/00 ,  G06F13/10 ,  G06F13/12 ,  G06F13/126 ,  G06F13/14 ,  G06F13/4022 ,  G06F2213/0026

Abstract: An information processing device having a processor and memory, and including one or more accelerators and one or more storage devices, wherein: the information processing device has one network for connecting the processor, the accelerators, and the storage devices; the storage devices have an initialization interface for accepting an initialization instruction from the processor, and an I/O issuance interface for issuing an I/O command; and the processor notifies the accelerators of the address of the initialization interface or the address of the I/O issuance interface.

公开(公告)号：US20170279918A1

公开(公告)日：2017-09-28

申请号：US15505751

申请日：2014-10-17

Applicant: HITACHI, LTD.

Inventor： Tetsuro HONMURA ,  Yoshifumi FUJIKAWA ,  Keisuke HATASAKI ,  Mitsuhiro OKADA ,  Akifumi SUZUKI

IPC: H04L29/08 ,  G06F12/0868 ,  G06F12/0804 ,  G06F12/0875

CPC classification number: H04L67/2852 ,  G06F3/06 ,  G06F12/08 ,  G06F12/0804 ,  G06F12/0868 ,  G06F12/0875 ,  G06F2212/1024

Abstract: A computer system according to one preferred embodiment of the present invention has a server and a storage subsystem, wherein the server is configured to enable data write to a cache area of the storage subsystem. Further, the server manages the usages of the cache area. When storing data from the server to the cache area, the server determines whether a data-writable area exists in the cache area or not. If there is a writable area, data is stored in the writable area.

公开(公告)号：US20170017395A1

公开(公告)日：2017-01-19

申请号：US15124690

申请日：2014-03-27

Applicant: HITACHI, LTD.

Inventor： Yoshiki KUROKAWA ,  Satoru WATANABE ,  Yoshitaka TSUJIMOTO ,  Mitsuhiro OKADA ,  Akifumi SUZUKI

IPC: G06F3/06 ,  G06F17/30

Abstract: A management controller controls a data buffer and a flash controller, which controls I/O of data to and from flash memories, based on a search request. A data decompression engine includes a plurality of data decompression circuits for decompressing, in parallel, the compressed data transferred from the data buffer. A data search engine includes a plurality of data search circuits for searching, in parallel, data which satisfies search conditions among the respective data that were decompressed by the data decompression circuits, and transfers, to the search request source, the data obtained in the search performed by the data search circuits, wherein the flash controller reads, in parallel, a plurality of compressed data requested in the search request, and transfers the read compressed data to the data buffer, and the management controller transfers the compressed data to the data decompression engine when the compressed data is stored in the data buffer.

Abstract translation: 管理控制器控制数据缓冲器和闪存控制器，其基于搜索请求来控制到闪速存储器的数据的I / O。 数据解压缩引擎包括用于并行地解压缩从数据缓冲器传送的压缩数据的多个数据解压缩电路。 数据搜索引擎包括多个数据搜索电路，用于并行搜索满足由数据解压缩电路解压缩的各个数据之中的搜索条件的数据，并将搜索请求源传送到搜索中获得的数据 由数据搜索电路执行，其中闪存控制器并行地读取在搜索请求中请求的多个压缩数据，并将读取的压缩数据传送到数据缓冲器，并且管理控制器将压缩数据传送到数据解压缩 引擎当压缩数据存储在数据缓冲区中时。