Systems and methods for a snapshot of data
    5.
    发明授权
    Systems and methods for a snapshot of data 有权
    数据快照的系统和方法

    公开(公告)号:US08015156B2

    公开(公告)日:2011-09-06

    申请号:US12717869

    申请日:2010-03-04

    IPC分类号: G06F7/02 G06F17/30

    摘要: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. According to one embodiment, the system stores representations of the snapshots that govern a file or directory and its descendants within metadata associated with that file or directory. In one embodiment, before modifying a file or directory, the system updates the representations of the governing snapshots by traversing the metadata of ancestors of the file or directory.

    摘要翻译: 在一个实施例中,用户或客户端设备连接到由一个或多个物理节点组成的分布式文件系统。 每个物理节点上的数据存储有关文件系统内的文件和目录的元数据。 一些实施例允许用户拍摄存储在文件系统上的数据的快照。 快照可以包括单个文件,单个目录,目录内的多个文件,多个目录,文件系统上包括嵌套文件和子目录的路径,或者文件系统上的多于一个路径,每个路径包括 嵌套文件和目录。 根据一个实施例,系统将管理文件或目录及其后代的快照的表示存储在与该文件或目录相关联的元数据内。 在一个实施例中,在修改文件或目录之前,系统通过遍历文件或目录的祖先的元数据来更新管理快照的表示。

    SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA
    6.
    发明申请
    SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 有权
    数据快照的系统和方法

    公开(公告)号:US20100161557A1

    公开(公告)日:2010-06-24

    申请号:US12717869

    申请日:2010-03-04

    IPC分类号: G06F17/30 G06F17/00

    摘要: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each includes nested files and directories. According to one embodiment, the system stores representations of the snapshots that govern a file or directory and its descendants within metadata associated with that file or directory. In one embodiment, before modifying a file or directory, the system updates the representations of the governing snapshots by traversing the metadata of ancestors of the file or directory.

    摘要翻译: 在一个实施例中,用户或客户端设备连接到由一个或多个物理节点组成的分布式文件系统。 每个物理节点上的数据存储有关文件系统内的文件和目录的元数据。 一些实施例允许用户拍摄存储在文件系统上的数据的快照。 快照可以包括单个文件,单个目录,目录内的多个文件,多个目录,文件系统上包括嵌套文件和子目录的路径,或者文件系统上的多于一个路径,每个路径包括 嵌套文件和目录。 根据一个实施例,系统将管理文件或目录及其后代的快照的表示存储在与该文件或目录相关联的元数据内。 在一个实施例中,在修改文件或目录之前,系统通过遍历文件或目录的祖先的元数据来更新管理快照的表示。

    Systems and methods for a snapshot of data
    7.
    发明授权
    Systems and methods for a snapshot of data 有权
    数据快照的系统和方法

    公开(公告)号:US07680836B2

    公开(公告)日:2010-03-16

    申请号:US11506610

    申请日:2006-08-18

    摘要: In one embodiment, a user or client device is connected to a distributed file system comprised of one or more physical nodes. The data on each of the physical nodes store metadata about files and directories within the file system. Some of the embodiments permit a user to take a snapshot of data stored on the file system. The snapshot may include a single file, a single directory, a plurality of files within a directory, a plurality of directories, a path on the file system that includes nested files and subdirectories, or more than one path on the file system that each include nested files and directories. According to one embodiment, the system stores representations of the snapshots that govern a file or directory and its descendants within metadata associated with that file or directory. Before modifying a file or directory, the system updates the representations of the governing snapshots by traversing the metadata of ancestors of the file or directory.

    摘要翻译: 在一个实施例中,用户或客户端设备连接到由一个或多个物理节点组成的分布式文件系统。 每个物理节点上的数据存储有关文件系统内的文件和目录的元数据。 一些实施例允许用户拍摄存储在文件系统上的数据的快照。 快照可以包括单个文件,单个目录,目录中的多个文件,多个目录,文件系统上包括嵌套文件和子目录的路径,或者文件系统上的多于一个路径,每个路径包括 嵌套文件和目录。 根据一个实施例,系统将管理文件或目录及其后代的快照的表示存储在与该文件或目录相关联的元数据内。 在修改文件或目录之前,系统通过遍历文件或目录的祖先的元数据来更新管理快照的表示。

    Systems and methods for accessing and updating distributed data
    8.
    发明授权
    Systems and methods for accessing and updating distributed data 有权
    用于访问和更新分布式数据的系统和方法

    公开(公告)号:US07917474B2

    公开(公告)日:2011-03-29

    申请号:US11255337

    申请日:2005-10-21

    IPC分类号: G06F7/00 G06F17/00

    摘要: Systems and methods are disclosed that provide an indexing data structure. In one embodiment, the indexing data structure is mirrored index tree where the copies of the nodes of the tree are stored across devices in a distributed system. In one embodiment, nodes that are stored on an offline device are restored, and an offline device that comes back online is merged into the distributed system and given access to the current indexing data structure. In one embodiment, the indexing data structure is traversed to locate and restore nodes that are stored on offline devices of the distributed system.

    摘要翻译: 公开了提供索引数据结构的系统和方法。 在一个实施例中,索引数据结构是镜像索引树,其中树的节点的副本被存储在分布式系统中的设备之间。 在一个实施例中,恢复存储在脱机设备上的节点,并且返回在线的离线设备被合并到分布式系统中并且允许对当前索引数据结构的访问。 在一个实施例中,遍历索引数据结构以定位和恢复存储在分布式系统的离线设备上的节点。

    SYSTEMS AND METHODS FOR ACCESSING AND UPDATING DISTRIBUTED DATA
    9.
    发明申请
    SYSTEMS AND METHODS FOR ACCESSING AND UPDATING DISTRIBUTED DATA 有权
    用于访问和更新分布式数据的系统和方法

    公开(公告)号:US20110145195A1

    公开(公告)日:2011-06-16

    申请号:US12965748

    申请日:2010-12-10

    IPC分类号: G06F17/30

    摘要: Systems and methods are disclosed that provide an indexing data structure. In one embodiment, the indexing data structure is mirrored index tree where the copies of the nodes of the tree are stored across devices in a distributed system. In one embodiment, nodes that are stored on an offline device are restored, and an offline device that comes back online is merged into the distributed system and given access to the current indexing data structure. In one embodiment, the indexing data structure is traversed to locate and restore nodes that are stored on offline devices of the distributed system.

    摘要翻译: 公开了提供索引数据结构的系统和方法。 在一个实施例中,索引数据结构是镜像索引树,其中树的节点的副本被存储在分布式系统中的设备之间。 在一个实施例中,恢复存储在脱机设备上的节点,并且返回在线的离线设备被合并到分布式系统中并且允许对当前索引数据结构的访问。 在一个实施例中,遍历索引数据结构以定位和恢复存储在分布式系统的离线设备上的节点。

    Systems and methods for accessing and updating distributed data
    10.
    发明授权
    Systems and methods for accessing and updating distributed data 有权
    用于访问和更新分布式数据的系统和方法

    公开(公告)号:US08176013B2

    公开(公告)日:2012-05-08

    申请号:US12965748

    申请日:2010-12-10

    IPC分类号: G06F7/00 G06F17/30

    摘要: Systems and methods are disclosed that provide an indexing data structure. In one embodiment, the indexing data structure is mirrored index tree where the copies of the nodes of the tree are stored across devices in a distributed system. In one embodiment, nodes that are stored on an offline device are restored, and an offline device that comes back online is merged into the distributed system and given access to the current indexing data structure. In one embodiment, the indexing data structure is traversed to locate and restore nodes that are stored on offline devices of the distributed system.

    摘要翻译: 公开了提供索引数据结构的系统和方法。 在一个实施例中,索引数据结构是镜像索引树,其中树的节点的副本被存储在分布式系统中的设备之间。 在一个实施例中,恢复存储在脱机设备上的节点,并且返回在线的离线设备被合并到分布式系统中并且允许对当前索引数据结构的访问。 在一个实施例中,遍历索引数据结构以定位和恢复存储在分布式系统的离线设备上的节点。