公开(公告)号：US20250053575A1

公开(公告)日：2025-02-13

申请号：US18597755

申请日：2024-03-06

Applicant: Hitachi, Ltd.

Inventor： Miho KOBAYASHI ,  Soichi WATANABE ,  Mitsuo HAYASAKA ,  Shimpei NOMURA

IPC: G06F16/27

Abstract: A support device and method capable of supporting construction of an optimal secondary usage environment for data are proposed.
A plurality of construction candidate plans for a secondary usage environment including a copy method for copying the data between a designated copy source site and a designated copy destination site of the data are calculated. A time and a cost required for copying the data and an operation cost of the secondary usage environment to be constructed are calculated for each of the calculated construction candidate plans,, and the plurality of construction candidate plans based on a calculation result together with evaluations thereof are presented.

公开(公告)号：US20220197527A1

公开(公告)日：2022-06-23

申请号：US17473804

申请日：2021-09-13

Applicant: Hitachi, Ltd.

Inventor： Shimpei NOMURA ,  Mitsuo HAYASAKA ,  Yuto KAMO

IPC: G06F3/06

Abstract: To attempt to reduce a processing load by making it unnecessary to perform a task of searching for similar data when a delta compression process is performed.
A storage system has a deduplication function of performing deduplication on a plurality of duplicate pieces of the data and a delta compression function of storing differences between a plurality of similar pieces of the data. When a write request to update the stored data is received, in a case where the deduplication has been performed on the data before being updated according to the write request, and the data after being updated does not share duplicate data with second data, a processor of the storage system performs the delta compression of generating and storing a difference between the data before being updated and the data after being updated.

公开(公告)号：US20210303158A1

公开(公告)日：2021-09-30

申请号：US17020111

申请日：2020-09-14

Applicant: HITACHI, LTD.

Inventor： Shimpei NOMURA ,  Mitsuo HAYASAKA ,  Masanori TAKATA

IPC: G06F3/06

Abstract: A processor of a NAS performs a calling process of a local file system based on an operation request of a file from an application, the local file system processes the operation request of the file, an IO Hook program performs an update process of state management information of the file based on input information with respect to the local file system related to the operation request or an operation content, and a file virtualization program performs a management process of the file between the NAS and a CAS based on the state management information.

公开(公告)号：US20200322165A1

公开(公告)日：2020-10-08

申请号：US16811044

申请日：2020-03-06

Applicant: Hitachi, Ltd.

Inventor： Shimpei NOMURA ,  Mitsuo HAYASAKA ,  Jun NEMOTO

IPC: H04L9/32 ,  H04L9/06 ,  H04L9/08 ,  G06F9/46 ,  G06F11/14

Abstract: Provided is a distributed ledger device, aiming at easily and appropriately determining a status of operational processing on a distributed ledger in a certain distributed ledger device at another distributed ledger device. A BC node in a BC system including a plurality of BC nodes that manage a distributed ledger for a predetermined target transaction, the BC node including: the storage device; and the processor, in which the storage device stores the distributed ledger, and the processor, when executing processing relating to the distributed ledger, transmits content information indicating contents of the processing to be managed by another BC node that manages the distributed ledger. The processor may transmit an instruction to register the content information in another distributed ledger managed by the plurality of BC nodes that manage the distributed ledger.

公开(公告)号：US20230297486A1

公开(公告)日：2023-09-21

申请号：US17941210

申请日：2022-09-09

Applicant: Hitachi, Ltd.

Inventor： Shimpei NOMURA ,  Mitsuo HAYASAKA

IPC: G06F11/34 ,  H04L67/51 ,  G06F9/50

CPC classification number: G06F11/3409 ,  H04L67/51 ,  G06F9/5044 ,  G06F2209/501

Abstract: In an application platform, an application performance model and a data store performance model in each of a plurality of site systems are stored, and a processor receives target performance information, determines an application allocated resource amount for the plurality of site systems based on the application performance model, determines required performance of a data store for the plurality of site systems, determines a data store allocated resource amount for the plurality of site systems based on the data store performance model, and searches for an arrangement plan of the application and the data store capable of implementing the application allocated resource amount and the data store allocated resource amount in the plurality of site systems.

公开(公告)号：US20190205053A1

公开(公告)日：2019-07-04

申请号：US16325286

申请日：2017-01-12

Applicant: HITACHI, LTD.

Inventor： Shimpei NOMURA ,  Masahiro TSURUYA ,  Akifumi SUZUKI

IPC: G06F3/06 ,  G06F9/50

Abstract: When a logical capacity of a nonvolatile semiconductor memory is increased, after a logical capacity which is allocated to a RAID group but unused is released, the RAID group is reconfigured to include the released logical capacity and the increased logical capacity. When the logical capacity of the nonvolatile semiconductor memory is reduced, after the reduced logical capacity is released from the RAID group, the RAID group is reconfigured with the released logical capacity.

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：US20230319131A1

公开(公告)日：2023-10-05

申请号：US18331336

申请日：2023-06-08

Applicant: Hitachi, Ltd.

Inventor： Shimpei NOMURA ,  Mitsuo HAYASAKA ,  Kazumasa MATSUBARA ,  Eiichi INOUE

IPC: H04L67/10

CPC classification number: H04L67/10

Abstract: An information processing system including Application Platform capable of communicating with Edge1 connected to each other to be able to communicate each other, in which Application Platform includes a second processor, information on microservices and data possessed by Edge1, and performance information describing the performance of Edge1, and the second processor uses predetermined data to combine a plurality of predetermined microservices and causes Edge1 to execute them in a predetermined order. When executing the application, microservices and data are moved between Edge1 based on the information of the microservices and the data possessed by Edge1, and the performance information.

公开(公告)号：US20220214811A1

公开(公告)日：2022-07-07

申请号：US17703883

申请日：2022-03-24

Applicant: HITACHI, LTD.

Inventor： Shimpei NOMURA ,  Mitsuo HAYASAKA ,  Masanori TAKATA

IPC: G06F3/06

Abstract: A file storage system configured to use a second storage system includes a first file system provided to an application, a first storage system in which a file is stored by the first file system, a processor, state management information storing a state of the file, a state information management unit that manages the state management information, and a file virtualization unit that manages files stored in the first storage system and the second storage system. The processor performs a calling process of the first file system based on an operation request of the file from the application. The first file system processes the operation request of the file. The state information management unit performs a state management information update process of the file based on input information with respect to the first file system related to the operation request, or an operation content.