公开(公告)号：US08271753B2

公开(公告)日：2012-09-18

申请号：US12212049

申请日：2008-09-17

申请人： Jun Nemoto ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

发明人： Jun Nemoto ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

IPC分类号： G06F12/00

CPC分类号： G06F3/065 ,  G06F3/0614 ,  G06F3/0683 ,  G06F11/1451 ,  G06F2201/84

摘要： Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an Nth 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.

摘要翻译： 从已经被复制的第一时间点快照到构成最新时刻快照的第N个时刻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。

公开(公告)号：US08661215B2

公开(公告)日：2014-02-25

申请号：US13587049

申请日：2012-08-16

申请人： Jun Nemoto ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

发明人： Jun Nemoto ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

IPC分类号： G06F12/00

CPC分类号： G06F3/065 ,  G06F3/0614 ,  G06F3/0683 ,  G06F11/1451 ,  G06F2201/84

摘要： 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.

摘要翻译： 已复制的第一个时间点快照的两个快照与构成最新时间点快照的N.sup.th时间点快照的差异信息被采集到存储器 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。

公开(公告)号：US20120311284A1

公开(公告)日：2012-12-06

申请号：US13587049

申请日：2012-08-16

申请人： Jun NEMOTO ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

发明人： Jun NEMOTO ,  Atsushi Sutoh ,  Takaki Nakamura ,  Yoji Nakatani

IPC分类号： G06F12/16

CPC分类号： G06F3/065 ,  G06F3/0614 ,  G06F3/0683 ,  G06F11/1451 ,  G06F2201/84

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20070239655A1

公开(公告)日：2007-10-11

申请号：US11477858

申请日：2006-06-30

申请人： Masakuni Agetsuma ,  Yoji Nakatani ,  Takaki Nakamura

发明人： Masakuni Agetsuma ,  Yoji Nakatani ,  Takaki Nakamura

IPC分类号： G06F17/30

CPC分类号： G06F3/0647 ,  G06F3/061 ,  G06F3/0635 ,  G06F3/0643 ,  G06F3/067 ,  G06F17/30079 ,  G06F2206/1012 ,  Y10S707/99932 ,  Y10S707/99956

摘要： There has never been disclosed a method of executing migration on a fine-grained basis than a file system basis in a manner that is transparent to clients in a storage system with a plurality of servers to which a global name space is applied. In a storage system with a plurality of servers and a disk subsystem, which is coupled to the plurality of servers, a file system in the disk subsystem is assigned a first identifier, which is unique throughout the storage system, at least one of directories contained in the file system is assigned a second identifier, which is unique throughout the storage system, and a file contained in the file system is assigned a third identifier, which is unique throughout the file system. The server identifies a file below the directory that has the second identifier by the second identifier and by the third identifier.

摘要翻译： 没有公开一种以文件系统为基础的细粒度执行迁移的方法，该方法对具有应用了全局名称空间的多个服务器的存储系统中的客户端是透明的。 在具有多个服务器和耦合到多个服务器的磁盘子系统的存储系统中，向磁盘子系统中的文件系统分配在整个存储系统中唯一的第一标识符，包含的至少一个目录 在文件系统中分配有在整个存储系统中是唯一的第二标识符，并且包含在文件系统中的文件被分配有在整个文件系统中是唯一的第三标识符。 服务器通过第二标识符和第三标识符来标识具有第二标识符的目录下的文件。

公开(公告)号：US20070245102A1

公开(公告)日：2007-10-18

申请号：US11447593

申请日：2006-06-05

申请人： Akitsugu Kanda ,  Takaki Nakamura ,  Yoji Nakatani ,  Yohsuke Ishii

发明人： Akitsugu Kanda ,  Takaki Nakamura ,  Yoji Nakatani ,  Yohsuke Ishii

IPC分类号： G06F12/16

CPC分类号： G06F3/0647 ,  G06F3/0607 ,  G06F3/0631 ,  G06F3/067 ,  G06F16/1827

摘要： Provided are a storage system, a data management apparatus, and a data management method capable of facilitating the add-on procedures of data management apparatuses for managing data groups such as directory groups. In a storage system comprising a plurality of data management apparatuses for managing storage destination management information of a data group stored in a storage extent of a prescribed storage controller, at least one of the data management apparatuses decides the respective data management apparatuses to newly manage the data group for each of the data groups based on the importance of each of the data groups or the loaded condition of each of the data management apparatuses, and migrates storage destination management information containing information regarding the storage destination of the data group to the data management apparatus to newly manage the data group based on the decision as necessary.

摘要翻译： 提供了能够促进用于管理诸如目录组之类的数据组的数据管理装置的附加程序的存储系统，数据管理装置和数据管理方法。 在包括用于管理存储在规定的存储控制器的存储范围内的数据组的存储目的地管理信息的多个数据管理装置的存储系统中，至少一个数据管理装置决定各个数据管理装置， 基于每个数据组的重要性或每个数据管理装置的加载条件的每个数据组的数据组，并将包含关于数据组的存储目的地的信息的存储目的地管理信息迁移到数据管理 根据需要，根据决定重新管理数据组的装置。

公开(公告)号：US20070192375A1

公开(公告)日：2007-08-16

申请号：US11399506

申请日：2006-04-07

申请人： Yoji Nakatani ,  Takaki Nakamura ,  Yohsuke Ishii

发明人： Yoji Nakatani ,  Takaki Nakamura ,  Yohsuke Ishii

IPC分类号： G06F17/30

CPC分类号： G06F11/1662 ,  G06F11/2097

摘要： Provided is a method of updating a mirror in a storage system that has a plurality of servers in which a mirror is created as a replica of a file system and the access load is balanced among a plurality of servers each having the mirror. Upon reception of an access request from a client computer, it is judged whether or not the client has a possibility of issuing at least one of update requests. In a case where it is judged that the client has a possibility of issuing at least one of update requests, a master from which a mirror is copied is selected. In a case where it is judged that the client does not have a possibility of issuing at least one of update requests, a mirror is selected. Then, access to the selected master or mirror is executed as requested.

摘要翻译： 提供了一种更新具有多个服务器的存储系统中的镜像的方法，其中将镜像创建为文件系统的副本，并且在具有镜像的多个服务器之间平衡访问负载。 在从客户端计算机接收到访问请求时，判断客户端是否可能发出更新请求中的至少一个。 在判定客户端具有发出更新请求中的至少一个的可能性的情况下，选择从其复制镜像的主机。 在判定客户端不具有发出更新请求中的至少一个的可能性的情况下，选择镜。 然后，根据请求执行对所选主机或镜像的访问。

公开(公告)号：US20090063793A1

公开(公告)日：2009-03-05

申请号：US12256390

申请日：2008-10-22

申请人： Akitsugu Kanda ,  Takaki Nakamura ,  Yoji Nakatani ,  Yohsuke Ishii

发明人： Akitsugu Kanda ,  Takaki Nakamura ,  Yoji Nakatani ,  Yohsuke Ishii

IPC分类号： G06F12/16 ,  G06F12/00 ,  G06F12/02

CPC分类号： G06F3/0647 ,  G06F3/0607 ,  G06F3/0631 ,  G06F3/067 ,  G06F16/1827

摘要： Provided are a storage system, a data management apparatus, and a data management method capable of facilitating the add-on procedures of data management apparatuses for managing data groups such as directory groups. In a storage system comprising a plurality of data management apparatuses for managing storage destination management information of a data group stored in a storage extent of a prescribed storage controller, at least one of the data management apparatuses decides the respective data management apparatuses to newly manage the data group for each of the data groups based on the importance of each of the data groups or the loaded condition of each of the data management apparatuses, and migrates storage destination management information containing information regarding the storage destination of the data group to the data management apparatus to newly manage the data group based on the decision as necessary.

摘要翻译： 提供了能够促进用于管理诸如目录组之类的数据组的数据管理装置的附加程序的存储系统，数据管理装置和数据管理方法。 在包括用于管理存储在规定的存储控制器的存储范围内的数据组的存储目的地管理信息的多个数据管理装置的存储系统中，至少一个数据管理装置决定各个数据管理装置， 基于每个数据组的重要性或每个数据管理装置的加载条件的每个数据组的数据组，并将包含关于数据组的存储目的地的信息的存储目的地管理信息迁移到数据管理 根据需要，根据决定重新管理数据组的装置。

公开(公告)号：US08117161B2

公开(公告)日：2012-02-14

申请号：US13008183

申请日：2011-01-18

申请人： Tomoya Anzai ,  Takahiro Nakano ,  Yoji Nakatani

发明人： Tomoya Anzai ,  Takahiro Nakano ,  Yoji Nakatani

IPC分类号： G06F17/00

CPC分类号： G06F17/30197

摘要： A storage system including: a storage device for storing a file; a plurality of file systems for managing the file; and a plurality of NAS servers that control access from a client to the file systems via a global namespace formed by grouping local namespaces for the one or more file systems; wherein, each NAS server includes a memory to store global namespace management information including global paths of the file systems; one NAS server of the NAS servers accepts a request to obtain snapshots of the file systems from external of the storage system; the one NAS server instructs itself and the other NAS servers to obtain snapshots of the file systems; the one NAS server and the other NAS servers obtain the snapshots of the file systems, and inform the one NAS server of snapshot identifiers and of local paths of the snapshots; the one NAS server makes snapshot management information including global paths of the snapshots based on each of the snapshot identifiers received from the other NAS servers and each of the global paths of file systems corresponding to the snapshots, included in the namespace management information so that both the global paths of the file systems and the global paths of the snapshots are configured on the same global namespace simultaneously, with a directory configuration of the snapshots being same in configuration layout as a directory configuration of the file systems; and the one NAS server informs the other NAS servers of the snapshot management information.

摘要翻译： 一种存储系统，包括：用于存储文件的存储装置; 用于管理文件的多个文件系统; 以及多个NAS服务器，其通过为一个或多个文件系统分组本地命名空间形成的全局命名空间来控制从客户端到文件系统的访问; 其中，每个NAS服务器包括存储器，用于存储包括所述文件系统的全局路径的全局命名空间管理信息; NAS服务器的一个NAS服务器接受从存储系统外部获取文件系统的快照的请求; 一个NAS服务器指示自己和其他NAS服务器获取文件系统的快照; 一个NAS服务器和其他NAS服务器获取文件系统的快照，并通知一个NAS服务器快照标识符和快照的本地路径; 一个NAS服务器基于从其他NAS服务器接收的每个快照标识符以及包含在命名空间管理信息中的与快照相对应的文件系统的每个全局路径，创建快照管理信息，包括快照的全局路径，以便两者 文件系统的全局路径和快照的全局路径在同一个全局命名空间上同时配置，快照的目录配置在配置版式中与文件系统的目录配置相同; 并且一个NAS服务器向其他NAS服务器通知快照管理信息。

公开(公告)号：US07836023B2

公开(公告)日：2010-11-16

申请号：US11777530

申请日：2007-07-13

申请人： Hidehisa Shitomi ,  Takahiro Nakano ,  Yoji Nakatani ,  Mitsuru Ikezawa ,  Yohsuke Ishii

发明人： Hidehisa Shitomi ,  Takahiro Nakano ,  Yoji Nakatani ,  Mitsuru Ikezawa ,  Yohsuke Ishii

IPC分类号： G06F7/00

CPC分类号： G06F17/30188 ,  Y10S707/99931 ,  Y10S707/99953

摘要： A storage system, including: a client that issues a file write request or a file read request; an archive server that is connected to the client via a network, and processes the request issued from the client; a storage device that is connected to the archive server, and records files; and a disk drive connected to the client. The arrangement utilizes an archived date management table and archive dates to conduct operations.

摘要翻译： 存储系统，包括：发出文件写入请求或文件读取请求的客户端; 通过网络连接到客户端的归档服务器，并处理从客户端发出的请求; 连接到归档服务器的存储设备，并记录文件; 和连接到客户端的磁盘驱动器。 该安排利用存档日期管理表和存档日期进行操作。

公开(公告)号：US07587506B2

公开(公告)日：2009-09-08

申请号：US11125244

申请日：2005-05-10

申请人： Takahiro Nakano ,  Yoji Nakatani ,  Etsutaro Akagawa ,  Hitoshi Kamei

发明人： Takahiro Nakano ,  Yoji Nakatani ,  Etsutaro Akagawa ,  Hitoshi Kamei

IPC分类号： G06F15/16

CPC分类号： G06F11/1464 ,  G06F11/1456

摘要： A data intermediate server 300 comprises the functions of reading data stored in storage servers ST1 through ST3 and sending the data to a media server 600 according to backup commands received from a backup control device 400 over a local area network LAN4. The data intermediate server 300 and the storage servers ST1 through ST3 are connected by channels that do not permit Internet protocol traffic but only data targeted for backup and control data assigned thereto. As a result, client data stored on the storage servers can be properly backed up while preventing data from being improperly retrieved or leaked.

摘要翻译： 数据中间服务器300包括读取存储在存储服务器ST1至ST3中的数据的功能，并且根据从备用控制设备400通过局域网LAN4接收的备份命令将数据发送到媒体服务器600。 数据中间服务器300和存储服务器ST1至ST3通过不允许因特网协议流量的信道连接，而仅通过分配给备份和控制数据的数据进行连接。 因此，可以正确地备份存储在存储服务器上的客户端数据，同时防止数据被不正确地检索或泄漏。