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。

公开(公告)号：US20170293644A1

公开(公告)日：2017-10-12

申请号：US15508019

申请日：2015-03-27

Applicant: Hitachi, Ltd.

Inventor： Yoshiki KUROKAWA ,  Satoru WATANABE ,  Yoshitaka TSUJIMOTO

IPC: G06F17/30

CPC classification number: G06F16/221 ,  G06F16/21 ,  G06F16/23 ,  G06F16/24542 ,  G06F16/24561 ,  G06F16/28

Abstract: A storage device for storing a column store database, the storage device comprising: a column read unit which reads page data to be searched that have been read from the column store database, acquires a leading row number included in the page data, and reads each column of data in the page data, sequentially from the leading row number to the last row in the column of data; a data search unit which compares each row in each read column of data with first search criteria, from the first row to the last row, and outputs a comparison result; and a search result aggregation unit which, when a comparison result for a range of columns specified by a search request has been output, compares each row in the comparison result with second search criteria, and determines one or more rows in the comparison result that satisfy the second search criteria.

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：US20170124077A1

公开(公告)日：2017-05-04

申请号：US15129489

申请日：2014-04-24

Applicant: Hitachi, Ltd.

Inventor： Satoru WATANABE ,  Akira YAMAMOTO ,  Yoshiki KUROKAWA ,  Yoshitaka TSUJIMOTO

IPC: G06F17/30 ,  G06F12/0802 ,  G06F12/1009 ,  G06F3/06

CPC classification number: G06F16/24552 ,  G06F3/061 ,  G06F3/0611 ,  G06F3/0644 ,  G06F3/0659 ,  G06F3/0688 ,  G06F12/0802 ,  G06F12/0868 ,  G06F12/1009 ,  G06F2212/222 ,  G06F2212/465 ,  G06F2212/60 ,  G06F2212/7201

Abstract: A storage apparatus to be coupled to a network, the storage apparatus comprising: a controller; and a storage medium to be coupled to the controller, the storage medium comprising one or more flash modules each comprising a database operation module, the controller being configured to receive a database operation command, and to cause the one or more flash modules to execute the received database operation command.

公开(公告)号：US20180165148A1

公开(公告)日：2018-06-14

申请号：US15571050

申请日：2015-06-29

Applicant: Hitachi, Ltd.

Inventor： Satoru WATANABE ,  Yoshiki KUROKAWA ,  Yoshitaka TSUJIMOTO

IPC: G06F11/10 ,  G06F3/06 ,  G06F17/30

CPC classification number: G06F11/1004 ,  G06F3/0604 ,  G06F3/0659 ,  G06F3/0679 ,  G06F16/00 ,  G06F16/2455

Abstract: A computer including a processor and a memory and a storage device that is connected to the computer and stores data has an FPGA that acquires data and an operation command from a control unit that controls reading and writing with respect to a non-volatile semiconductor storage unit to perform a data operation. The computer generates and transmits the operation command from an access request that has been received to the storage device. The computer receives execution results for the operation command from the storage device, and when the number of execution results for the operation command reaches a prescribed value, instructs the FPGA to detect a soft error, receives all execution results with respect to the generated operation command, and if there is no soft error, transmits the execution results.

公开(公告)号：US20170286458A1

公开(公告)日：2017-10-05

申请号：US15510756

申请日：2015-02-25

Applicant: Hitachi, Ltd.

Inventor： Satoru WATANABE ,  Yoshiki KUROKAWA ,  Yoshitaka TSUJIMOTO

IPC: G06F17/30

CPC classification number: G06F16/217 ,  G06F16/00 ,  G06F16/24542 ,  G06F16/90335

Abstract: A computer comprising a processor and a memory and providing a database management unit for managing a database, said computer having a device that is connected to the processor via an interface and that comprises: at least one nonvolatile semiconductor storage device which has a plurality of nonvolatile semiconductor memories and which stores a database; at least one database calculation module which reads the database from the nonvolatile semiconductor storage device and performs calculations in the database; and a switch which connects the interface to the nonvolatile semiconductor storage device and the database calculation module.

公开(公告)号：US20170192718A1

公开(公告)日：2017-07-06

申请号：US15126693

申请日：2014-04-28

Applicant: Hitachi, Ltd.

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

IPC: G06F3/06 ,  G06F11/10

CPC classification number: G06F3/0659 ,  G06F3/061 ,  G06F3/0656 ,  G06F3/0658 ,  G06F3/0688 ,  G06F11/1044 ,  G06F12/00

Abstract: A storage apparatus has a plurality of hardware engines which send and receive information to and from a controller, which, on the condition of acquiring a request command from a host, determines identifying information of the request command, executes data I/O processing to the storage device according to the request command when first identifying information has been added to the request command and when second identifying information has been added to the acquired request command, transfers the request command to the hardware engine, acquires the data requested by the hardware engine from the storage device and transfers the acquired data to the hardware engine. The hardware engine acquires and analyzes an add-on command from the host and according to the request command, requests the controller to transfer the data based on the analysis result, and thereafter executes processing to the data transferred by the controller according to the add-on command.