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公开(公告)号：US11134121B2
公开(公告)日：2021-09-28
申请号：US15920501
申请日：2018-03-14
Applicant: HITACHI, LTD.
Inventor： Kaiho Fukuchi , Jun Nemoto , Masakuni Agetsuma
Abstract: The time required for recovery in a distributed computing system can be reduced. At least one node (for example a server) or a different computer (for example a management server) are provided in the distributed computing system which includes a plurality of nodes existing at a plurality of sites. One or more sites at which one or more nodes that hold one or more datasets identical to one or more datasets held by a node to be recovered are identified. For the recovery, it is determined, on the basis of the one or more identified sites, a restore destination site that is a site of a node to which the one or more identical datasets are to be restored from among the plurality of sites.
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公开(公告)号：US10740088B2
公开(公告)日：2020-08-11
申请号：US16324083
申请日：2016-11-14
Applicant: Hitachi, Ltd.
Inventor： Takanobu Suzuki , Masakuni Agetsuma , Jun Nemoto
Abstract: The computer system executes environment classification of classifying a plurality of subsystems, each being a physical or virtual computer system, into one or more environment groups being one or more groups. The computer system stores classification result data which is data representing a relationship between the environment group and the subsystems belonging to the environment group. The computer system selects, from the classification result data, the environment group to which the subsystem having undergone a problem belongs. The computer system generates a reproduction subsystem which is a virtual subsystem virtually reproducing the subsystem for each of the subsystems belonging to the selected classification result group. The computer system applies the countermeasure to at least one reproduction subsystem for the purpose of verifying the countermeasure for the problem.
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公开(公告)号：US20200250333A1
公开(公告)日：2020-08-06
申请号：US16733423
申请日：2020-01-03
Applicant: Hitachi, Ltd.
Inventor： Jun Nemoto , Mitsuo Hayasaka , Shimpei Nomura
IPC: G06F21/62 , G06F16/182 , G06F16/18 , G06F11/14 , G06F16/13
Abstract: An object of the invention is to enable a fine grain access control in a unit finer than an access unit specified in a specification of application software such as a block-chain and a database. A data management system, in which data to be processed by an information processing device is accessed by a file system in which date is accessed in a file unit, stores fine grain access information related to a file to be accessed. The fine grain access information includes a position of the file, an access right to the file, and retention information, and access to the file from the information processing device is controlled based on the fine grain access information. The file includes a block-chain block, and the fine grain access information is stored as an extended attribute in the file including the block-chain block.
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4.发明授权Storage controller and storage control method for snapshot acquisition and remote copying of a snapshot 有权用于快照采集和远程复制快照的存储控制器和存储控制方法公开(公告)号：US08738874B2
公开(公告)日：2014-05-27
申请号：US13956413
申请日：2013-08-01
Applicant: Hitachi, Ltd.
Inventor： Jun Nemoto , Atsushi Sutoh , Takaki Nakamura , Yoji Nakatani
IPC: G06F12/00
CPC classification number: G06F3/065 , G06F3/0614 , G06F3/0683 , G06F11/1451 , G06F2201/84
Abstract: Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an N.sup.th point-in-time snapshot, which constitutes the latest point-in-time snapshot, is acquired to a memory module. The memory module stores two or more pieces of difference information. The two or more pieces of difference information comprise difference information that shows the difference between a first point-in-time snapshot and any snapshot other than the first point-in-time snapshot of N snapshots. Copy difference information, which is information that shows the difference between the first point-in-time snapshot and a specified snapshot from among N snapshots, and which is used in copying the specified snapshot, is created on the basis of the two or more pieces of difference information.
Abstract translation: 从已经被复制的第一时间点快照到构成最新时间点快照的N.supthth时间点快照的两个快照之间的差异信息被获取到存储器 模块。 存储器模块存储两个或更多个差异信息。 两条或更多条差异信息包括差异信息，其显示第一时间点快照与N个快照的第一时间点快照之外的任何快照之间的差异。 复制差异信息，它是显示N个快照中第一个时间点快照和指定快照之间的区别的信息，以及复制指定快照时使用的差异信息，是基于两个或多个部分 的差异信息。
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公开(公告)号：US11089097B2
公开(公告)日：2021-08-10
申请号：US15920501
申请日：2018-03-14
Applicant: HITACHI, LTD.
Inventor： Kaiho Fukuchi , Jun Nemoto , Masakuni Agetsuma
Abstract: The time required for recovery in a distributed computing system can be reduced. At least one node (for example a server) or a different computer (for example a management server) are provided in the distributed computing system which includes a plurality of nodes existing at a plurality of sites. One or more sites at which one or more nodes that hold one or more datasets identical to one or more datasets held by a node to be recovered are identified. For the recovery, it is determined, on the basis of the one or more identified sites, a restore destination site that is a site of a node to which the one or more identical datasets are to be restored from among the plurality of sites.
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Patent Agency Ranking
公开(公告)号：US09251163B2
公开(公告)日：2016-02-02
申请号：US14464115
申请日：2014-08-20
Applicant: Hitachi, Ltd.
Inventor： Jun Nemoto , Yohsuke Ishii , Atsushi Sutoh
CPC classification number: G06F17/30174 , G06F17/30041 , G06F17/301 , G06F17/30132 , G06F17/30153 , G06F17/30168
Abstract: In a computer system according to an embodiment of the present invention, a first slave server includes copy management information associating a master file system identifier with an identifier of a slave server including a copy of the master file system identified by the master file system identifier. The first slave server acquires a copy of a part of a master file system. The copy includes a stub-state object (file or directory). The first slave server searches the copy management information for a slave server to be queried regarding information for materializing the stub-state object. If the slave server to be queried includes the information for materialization, the first slave server materializes the stub-state object using the information for materialization acquired from the queried slave server.
Abstract translation: 在根据本发明的实施例的计算机系统中，第一从服务器包括将主文件系统标识符与从服务器的标识符相关联的复制管理信息，包括由主文件系统标识符标识的主文件系统的副本。 第一个从服务器获取主文件系统的一部分的副本。 副本包括一个存根状态对象（文件或目录）。 第一个从属服务器搜索复制管理信息以查找关于实现存根状态对象的信息的待检查的从服务器。 如果要查询的从属服务器包含实现信息，则第一个从服务器将使用从查询的从属服务器获取的实现信息实现存根状态对象。
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公开(公告)号：US09189168B2
公开(公告)日：2015-11-17
申请号：US13658389
申请日：2012-10-23
Applicant: Hitachi, Ltd
Inventor： Jun Nemoto , Atsushi Sutoh , Hitoshi Kamei , Takahiro Nakano
CPC classification number: G06F3/0647 , G06F3/0605 , G06F3/067 , G06F17/30079 , G06F17/30221
Abstract: When performing migration of data from a migration source file server which is not endowed with any HSM interface, to a migration destination file server which is endowed with HSM, a volume of high capacity is needed for the migration destination file server, and moreover the performance deteriorates directly after the migration. However, with this system, the manager is enabled to set a migration policy using attribute information which can be acquired through a standard file access interface possessed by a file server program, and, when setting the attribute information of the migration destination file, the tier of the file which is to be created is determined, and the migration destination file is created, on the basis of this attribute information and migration policy.
Abstract translation: 当从不具有任何HSM接口的迁移源文件服务器执行数据迁移到具有HSM的迁移目的地文件服务器时，迁移目标文件服务器需要高容量的卷，而且性能 迁移后直接恶化。 然而，利用该系统，管理员能够使用可以通过文件服务器程序拥有的标准文件访问接口获取的属性信息来设置迁移策略，并且在设置迁移目的地文件的属性信息时， 确定要创建的文件，并且基于该属性信息和迁移策略来创建迁移目的地文件。
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公开(公告)号：US20140122661A1
公开(公告)日：2014-05-01
申请号：US13696442
申请日：2012-10-26
Applicant: Hitachi, Ltd.
Inventor： Masanori Takata , Hitoshi Kamei , Jun Nemoto , Takayuki Fukutani , Atsushi Sutoh
IPC: H04L29/08
CPC classification number: H04L67/1097 , G06F3/0607 , G06F3/0649 , G06F3/067 , G06F3/0685
Abstract: A file server is replaced efficiently. A computer system includes a first file server, a second file server, and a third file server. The first file server retains file data storage information which indicates, for each file, whether data of the relevant file is stored in a first storage device or not; and after a data input/output request from a client terminal is switched from the first file server to the third file server, the third file server selects either the first file server or the second file server as a data transfer request destination of a target file of the data input/output request from the client terminal, based on the file data storage information sent from the first file server.
Abstract translation: 文件服务器被有效地替换。 计算机系统包括第一文件服务器，第二文件服务器和第三文件服务器。 第一文件服务器保留文件数据存储信息，其针对每个文件指示相关文件的数据是否存储在第一存储装置中; 在从第一文件服务器向第三文件服务器切换来自客户终端的数据输入/输出请求之后，第三文件服务器选择第一文件服务器或第二文件服务器作为目标文件的数据传送请求目的地 基于从第一文件服务器发送的文件数据存储信息，来自客户端的数据输入/输出请求。
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9.发明授权公开(公告)号：US11514443B2
公开(公告)日：2022-11-29
申请号：US16632935
申请日：2018-07-09
Applicant: HITACHI, LTD.
Inventor： Tatsuya Sato , Takayuki Nagai , Jun Nemoto , Nishio Yamada
Abstract: Operation management with consistent policies and timings between nodes even in a situation where there are a plurality of administrators in the distributed ledger system is realized. In an operation management system 10 for a distributed ledger system 6 comprising a plurality of nodes, each of at least two or more predetermined nodes in the plurality of nodes manages an operation smart contract 372 for operation management of the distributed ledger system with a distributed ledger 37, when at least one node in the two or more predetermined nodes receives a transaction, the node which has received the transaction judges whether or not a type of the transaction is the operation smart contract 372, and, based on the judgment result, executes the operation smart contract 372.
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10.发明授权公开(公告)号：US11483158B2
公开(公告)日：2022-10-25
申请号：US16811044
申请日：2020-03-06
Applicant: Hitachi, Ltd.
Inventor： Shimpei Nomura , Mitsuo Hayasaka , Jun Nemoto
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.
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