公开(公告)号：US20150339359A1

公开(公告)日：2015-11-26

申请号：US14426280

申请日：2013-02-06

Applicant: Hitachi, Ltd.

Inventor： Nobumitsu TAKAOKA ,  Shoji KODAMA

IPC: G06F17/30

CPC classification number: G06F16/254 ,  G06F16/211

Abstract: An object of the invention is to manage correspondence between data having different schemas stored in process servers, data warehouses, or the like in the computer system having a complicated modularity configuration in an integrated manner. The computer system includes a storage portion that maintains schema correspondence information indicating correspondence of metadata described in different schema formats; a storage device that stores metadata in a second schema format different from a first schema format, which is transformed based on the schema correspondence information in a manner of being associated with corresponding actual data and a unified ID; an index portion that acquires the metadata and the unified ID in the second schema format from the storage device and maintains the metadata index transformed in a third schema format different from the first and second schema formats based on the schema correspondence information; and an update managing portion that specifies the unified ID of the metadata to be an update target by using the schema correspondence information in response to an update request of the metadata having a predetermined schema format.

Abstract translation: 本发明的一个目的是以一体化的方式管理具有复杂的模块化配置的计算机系统中存储在过程服务器，数据仓库等中的具有不同模式的数据之间的对应关系。 计算机系统包括存储部分，其维持指示以不同模式格式描述的元数据的对应关系的模式对应信息; 以与第一模式格式不同的第二模式格式存储元数据的存储装置，其以与对应的实际数据和统一ID相关联的方式基于模式对应信息进行变换; 索引部分，其从存储设备获取第二模式格式的元数据和统一ID，并且基于模式对应信息维护以与第一和第二模式格式不同的第三模式格式变换的元数据索引; 以及更新管理部分，其响应于具有预定模式格式的元数据的更新请求，通过使用模式对应信息来指定要成为更新目标的元数据的统一ID。

公开(公告)号：US20140304242A1

公开(公告)日：2014-10-09

申请号：US14310487

申请日：2014-06-20

Applicant: HITACHI, LTD.

Inventor： Takaki NAKAMURA ,  Akira YAMAMOTO ,  Masaaki IWASAKI ,  Yohsuke ISHII ,  Nobumitsu TAKAOKA

IPC: G06F17/30

CPC classification number: G06F17/30156 ,  G06F3/0608 ,  G06F3/0641 ,  G06F3/0658 ,  G06F3/067

Abstract: A storage system 103 carries out first and second de-duplication processes in response to receiving a write request from a client. First, a determination is made as to whether a write target data item overlaps with any of the stored data items of a part of a stored data item group, which is a user data item group stored in a storage device 209, and if so, the write target data item is prevented from being stored in the storage device. Second, a determination is made as to whether a target stored data item, which is not finished being evaluated as to whether it overlaps with the stored data item in the first de-duplication process, overlaps with another stored data item, and if so, the target stored data item or the same data item overlapping with the target stored data item is deleted from the storage device 209.

Abstract translation: 存储系统103响应于从客户端接收到写入请求，执行第一和第二重复数据删除处理。 首先，确定写目标数据项是否与存储在存储装置209中的用户数据项组的存储数据项组的一部分的存储数据项重叠，如果是， 防止写目标数据项被存储在存储装置中。 其次，确定目标存储的数据项是否与第一重复数据删除处理中存储的数据项目重叠的未被评估的目标存储数据项目是否与另一个存储的数据项目重叠，如果是， 与目标存储数据项重叠的目标存储数据项或相同数据项从存储装置209中删除。

公开(公告)号：US20210042062A1

公开(公告)日：2021-02-11

申请号：US16795735

申请日：2020-02-20

Applicant: Hitachi, Ltd.

Inventor： Kenichi BETSUNO ,  Nobumitsu TAKAOKA ,  Hideyuki KOSEKI

IPC: G06F3/06

Abstract: A storage system includes controllers, physical storage devices, and logical storage devices to which storage areas are assigned from the physical storage devices. The controllers each have the physical storage device being different from that of each other and the host connected thereto being different from that of each other, and are each able to access the physical storage device and the host that are not connected thereto, through another controller. Any one of the controllers has an ownership to process an access request concerning the logical storage device. At least one controller determines that the ownership is caused to be moved among the controllers, based on an index of accesses to the physical storage device that includes the storage area to be assigned to the logical storage device and an index of accesses to the host that accesses the logical storage device.

公开(公告)号：US20200159454A1

公开(公告)日：2020-05-21

申请号：US16552838

申请日：2019-08-27

Applicant: Hitachi, Ltd.

Inventor： Nobumitsu TAKAOKA ,  Tomohiro YOSHIHARA ,  Naoya OKADA

IPC: G06F3/06

Abstract: In a large-scale storage system configured by combining a plurality of storage modules, it is possible to improve a read performance for deduplicated data. A large-scale storage system includes a first storage module and a second storage module each connected to a computing machine, the first storage module and the second storage module being connected to each other by a network, the first controller determines whether second data that is same as first data requested to be written is already stored in the second storage module when the first storage module receives a write request from the computing machine, and the first controller determines whether to store the first data in the first storage medium or to refer to the second data in the second storage module in a case in which the second data is already stored in the second storage module.

公开(公告)号：US20190050345A1

公开(公告)日：2019-02-14

申请号：US16076726

申请日：2016-07-19

Applicant: Hitachi, Ltd.

Inventor： Ai SATOYAMA ,  Tomohiro KAWAGUCHI ,  Nobumitsu TAKAOKA

IPC: G06F12/109 ,  G06F11/10 ,  G06F12/02

Abstract: A storage device allocates an address area of an address space to the first virtual address space in accordance with writing onto a first virtual address space. A controller manages an address area in the first virtual address space, in which address area a mapping to the real address space has been removed, as a usage prohibition area. When a use state of the first virtual address space reaches a predetermined criterion, the controller or the storage device adds new continuous address areas to the first virtual address space to expand the first virtual address space. The storage device allocates an area, in which a mapping to the first virtual address space has been removed, to the first virtual address space expanded.

公开(公告)号：US20150331916A1

公开(公告)日：2015-11-19

申请号：US14427949

申请日：2013-02-06

Applicant: HITACHI, LTD.

Inventor： Takaaki HARUNA ,  Shoji KODAMA ,  Go KOJIMA ,  Nobumitsu TAKAOKA

IPC: G06F17/30

CPC classification number: G06F16/254 ,  G06F16/13 ,  G06F16/1824 ,  G06F16/185 ,  G06F16/23 ,  G06F16/283

Abstract: A computer system including a shared file server manages the access to file data for performing access to the file data accurately and efficiently. This computer includes a plurality of first name spaces to which is assigned an access path to data stored in a storage area, and a name space to which is assigned a path corresponding to the access path and which is different from the first name spaces. When the access paths generated in different first name spaces are the same, the corresponding paths which correspond to the same access paths are changed into mutually different paths. Moreover, by assigning a path corresponding to the data to be analyzed, it is possible to efficiently access the requested data among a large amount of data. In addition, the sorting of the corresponding paths is changed according to the load of the computer storing the data.

Abstract translation: 包括共享文件服务器的计算机系统管理对文件数据的访问，以准确而有效地访问文件数据。 该计算机包括多个名字空间，向其分配了存储在存储区域中的数据的访问路径，并且向其分配了与该访问路径相对应的路径并且与该名字空间不同的名称空间。 当在不同的名字空间中生成的访问路径相同时，对应于相同访问路径的相应路径被改变为相互不同的路径。 此外，通过分配与要分析的数据相对应的路径，可以在大量数据之间有效地访问所请求的数据。 此外，根据存储数据的计算机的负载来改变相应路径的分类。

公开(公告)号：US20140337675A1

公开(公告)日：2014-11-13

申请号：US14340760

申请日：2014-07-25

Applicant: Hitachi, Ltd.

Inventor： Nobumitsu TAKAOKA ,  Masaaki IWASAKI ,  Shoji KODAMA

IPC: G06F11/30 ,  G06F11/07

CPC classification number: G06F11/3079 ,  G06F11/0712 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/0787 ,  G06F11/201 ,  G06F11/2015 ,  H04L41/0213 ,  H04L41/50 ,  H04L41/5035 ,  H04L67/1097 ,  H04L69/40

Abstract: If a failure occurs in physical resources constituting a virtual volume, a management server device is notified of information required by a user. A computer system includes a server device for managing a plurality of virtual volumes, a storage apparatus having a storage unit equipped with a plurality of storage devices, and a controller for controlling data input to, or output from, the storage unit, a management server device which is an access target of a user terminal, and an event management device for managing an event(s) generated by the server device or the storage apparatus, wherein when the event management device receives the event, it judges the content of the event and identifies a virtual volume to be affected by the event; and if a service level that should be satisfied by the identified virtual volume is defined for the identified virtual volume, the event management device identifies, based on the content of the received event, whether an incident in violation of the service level has occurred or not, and then notifies the management server device of the identified content as an event based on an event filter.

Abstract translation: 如果在构成虚拟卷的物理资源中发生故障，则向管理服务器设备通知用户所需的信息。 计算机系统包括用于管理多个虚拟卷的服务器设备，具有配备有多个存储设备的存储单元的存储设备和用于控制输入到存储单元或从存储单元输出的数据的控制器，管理服务器 作为用户终端的访问对象的装置，以及用于管理由服务器装置或存储装置生成的事件的事件管理装置，其中，当事件管理装置接收到事件时，判断事件的内容 并识别要受事件影响的虚拟卷; 并且如果为所识别的虚拟卷定义了所识别的虚拟卷应该满足的服务级别，则事件管理设备基于所接收的事件的内容来识别是否已经发生违反服务级别的事件 ，然后基于事件过滤器将所识别的内容通知给管理服务器设备作为事件。

公开(公告)号：US20180307433A1

公开(公告)日：2018-10-25

申请号：US15769424

申请日：2016-02-29

Applicant: Hitachi, Ltd.

Inventor： Nobumitsu TAKAOKA ,  Akira YAMAMOTO ,  Tomohiro KAWAGUCHI ,  Yasuo WATANABE ,  Yoshihiro YOSHII ,  Kazuki MATSUGAMI

IPC: G06F3/06

CPC classification number: G06F3/0641 ,  G06F3/0608 ,  G06F3/0644 ,  G06F3/0653 ,  G06F3/0659 ,  G06F3/0673

Abstract: A storage system according to an aspect of the present invention includes one or more storage devices for storing write data to which a write request from a host computer is directed, and a storage controller that provides one or more volumes to the host computer. Further, the storage system manages the time when a write request is last received from the host computer for each partition within the volume. Then, the storage controller performs a deduplication process upon detecting the partition not receiving a write request for a predetermined time or more from the time when the write request is last received.

公开(公告)号：US20160004708A1

公开(公告)日：2016-01-07

申请号：US14769688

申请日：2013-06-07

Applicant: HITACHI, LTD.

Inventor： Nobumitsu TAKAOKA ,  Shoji KODAMA

IPC: G06F17/30 ,  G06F11/14

CPC classification number: G06F16/113 ,  G06F11/1446 ,  G06F11/1451 ,  G06F11/1458 ,  G06F11/1461 ,  G06F16/1734 ,  G06F16/1873 ,  G06F2201/80 ,  G06F2201/82

Abstract: A file storage stores a client file (a file from a client) in a first file system (FS), stores metadata of the client file in a backup file in a second FS, and backs up the backup file to the first FS at a backup process start time. The file storage creates consistency file management information specifying a backup file having been backed up and a client file at that time point, acquires, when a file specified by the consistency file management information is transmitted to an archive storage apparatus, data identification information for identifying the transmitted file in the archive storage apparatus, and associates the data identification information with the transmitted file.

Abstract translation: 文件存储将客户端文件（来自客户端的文件）存储在第一文件系统（FS）中，将客户端文件的元数据存储在第二FS中的备份文件中，并将备份文件备份到第一FS 备份过程开始时间。 文件存储器创建指定备份的备份文件的一致性文件管理信息和在该时间点的客户端文件，当由一致性文件管理信息指定的文件被发送到归档存储装置时，获取用于识别的数据标识信息 存档存储装置中的发送文件，并且将数据识别信息与发送的文件相关联。

公开(公告)号：US20140250157A1

公开(公告)日：2014-09-04

申请号：US14275018

申请日：2014-05-12

Applicant: HITACHI, LTD.

Inventor： Atsushi SUTOH ,  Masanori TAKATA ,  Hitoshi KAMEI ,  Nobumitsu TAKAOKA ,  Takahiro NAKANO ,  Akio SHIMADA

IPC: G06F17/30

CPC classification number: G06F17/3012 ,  G06F17/30079 ,  G06F17/30082 ,  G06F17/30221

Abstract: Time required for a file server to determine files to be migrated from a first storage region to a second storage region is reduced. A file service system coupled to the storage system for providing a first storage region and a second storage region stores identifiers of files that have been accessed by a client, in accessed file identifier information and determines the files to be migrated from the first storage region to the second storage region based on metadata of the files stored in the first storage region and the accessed file identifier information.

Abstract translation: 减少文件服务器确定要从第一存储区域迁移到第二存储区域的文件所需的时间。 耦合到存储系统的用于提供第一存储区域和第二存储区域的文件服务系统存储由客户端访问的文件的标识符，并将其从第一存储区域迁移到 基于存储在第一存储区域中的文件的元数据和所访问的文件标识符信息的第二存储区域。