SYSTEMS AND METHODS FOR DISTRIBUTED SYSTEM SCANNING
    11.
    发明申请
    SYSTEMS AND METHODS FOR DISTRIBUTED SYSTEM SCANNING 有权
    用于分布式系统扫描的系统和方法

    公开(公告)号:US20110016353A1

    公开(公告)日:2011-01-20

    申请号:US12837439

    申请日:2010-07-15

    IPC分类号: G06F17/30 G06F11/14

    摘要: Systems and methods are provided for scanning files and directories in a distributed file system on a network of nodes. The nodes include metadata with attribute information corresponding to files and directories distributed on the nodes. In one embodiment, the files and directories are scanned by commanding the nodes to search their respective metadata for a selected attribute. At least two of the nodes are capable of searching their respective metadata in parallel. In one embodiment, the distributed file system commands the nodes to search for metadata data structures having location information corresponding to a failed device on the network. The metadata data structures identified in the search may then be used to reconstruct lost data that was stored on the failed device.

    摘要翻译: 系统和方法用于扫描节点网络上的分布式文件系统中的文件和目录。 节点包括具有对应于分布在节点上的文件和目录的属性信息的元数据。 在一个实施例中,通过命令节点来搜索文件和目录以搜索其各自的元数据以获得所选择的属性。 至少两个节点能够并行搜索它们各自的元数据。 在一个实施例中,分布式文件系统命令节点搜索具有与网络上的故障设备相对应的位置信息的元数据数据结构。 然后可以将在搜索中标识的元数据数据结构用于重建存储在故障设备上的丢失数据。

    Systems and methods for distributed system scanning
    12.
    发明授权
    Systems and methods for distributed system scanning 有权
    分布式系统扫描的系统和方法

    公开(公告)号:US08214334B2

    公开(公告)日:2012-07-03

    申请号:US12837439

    申请日:2010-07-15

    IPC分类号: G06F7/00 G06F17/00

    摘要: Systems and methods are provided for scanning files and directories in a distributed file system on a network of nodes. The nodes include metadata with attribute information corresponding to files and directories distributed on the nodes. In one embodiment, the files and directories are scanned by commanding the nodes to search their respective metadata for a selected attribute. At least two of the nodes are capable of searching their respective metadata in parallel. In one embodiment, the distributed file system commands the nodes to search for metadata data structures having location information corresponding to a failed device on the network. The metadata data structures identified in the search may then be used to reconstruct lost data that was stored on the failed device.

    摘要翻译: 系统和方法用于扫描节点网络上的分布式文件系统中的文件和目录。 节点包括具有对应于分布在节点上的文件和目录的属性信息的元数据。 在一个实施例中,通过命令节点来搜索文件和目录以搜索其各自的元数据以获得所选择的属性。 至少两个节点能够并行搜索它们各自的元数据。 在一个实施例中,分布式文件系统命令节点搜索具有与网络上的故障设备相对应的位置信息的元数据数据结构。 然后可以将在搜索中标识的元数据数据结构用于重建存储在故障设备上的丢失数据。

    Systems and methods for a snapshot of data
    13.
    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:US08010493B2

    公开(公告)日:2011-08-30

    申请号:US12717840

    申请日:2010-03-04

    IPC分类号: G06F7/04 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. In one embodiment, the metadata comprises mini-snapshots for directories representing a path from the root of the file system to the root of the snapshot. The mini-snapshots serve as stand-ins for portions of the file system which are not included in the snapshot, but which permit access to the snapshot data in an intuitive way.

    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。 在一个实施例中,元数据包括用于表示从文件系统的根到快照的根的路径的目录的小型快照。 微型快照作为文件系统中未包含在快照中的部分的备用,但允许以直观的方式访问快照数据。

    Scalable and extensible secure rendering of digital content
    15.
    发明授权
    Scalable and extensible secure rendering of digital content 有权
    数字内容的可扩展和可扩展的安全渲染

    公开(公告)号:US08341431B2

    公开(公告)日:2012-12-25

    申请号:US12625383

    申请日:2009-11-24

    IPC分类号: G06F21/00

    CPC分类号: G06F21/10

    摘要: A number of digital content rendering modules are equipped such that selective subsets of the modules may be employed to render digital content of different media, and of different format types. The modules are organized into a hierarchy, with a selected one occupying a root position of the hierarchy, to exclusively receive the digital contents to be rendered, and that each module is further responsible for verifying the integrity of its immediate downstream modules, to collectively protect the digital contents being rendered. Additionally, in accordance with another aspect, a tamper resistant module is employed to recover digital contents provided in a protected state, obfuscating the recovery. Further, the modules may be of different application domains.

    摘要翻译: 配备了许多数字内容呈现模块,使得可以使用模块的选择性子集来呈现不同媒体和不同格式类型的数字内容。 模块被组织成层次结构,所选择的一个占据层次结构的根位置,以独占地接收要呈现的数字内容,并且每个模块还负责验证其直接下游模块的完整性,以共同保护 正在呈现数字内容。 此外,根据另一方面,采用防篡改模块来恢复以受保护状态提供的数字内容,从而对恢复进行模糊处理。 此外,模块可以具有不同的应用领域。

    Systems and methods for a snapshot of data
    17.
    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:US07882071B2

    公开(公告)日:2011-02-01

    申请号:US11507069

    申请日:2006-08-18

    IPC分类号: G06F17/00 G06F7/20

    CPC分类号: G06F17/30088 G06F17/3015

    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. In one embodiment, previous versions of a file or directory are stored only in response to a request to modify the file or directory. The system creates and updates a snapshot tracking data structure which provides information regarding each file or directory governed by the snapshot that was modified or deleted after the snapshot was taken. The snapshot tracking data structure may be used by the system to perform functions related to the snapshot, including deleting the snapshot.

    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。 在一个实施例中,文件或目录的先前版本仅在响应于修改文件或目录的请求时被存储。 系统创建和更新快照跟踪数据结构,该结构提供有关拍摄快照后修改或删除的快照所管理的每个文件或目录的信息。 系统可以使用快照跟踪数据结构来执行与快照相关的功能,包括删除快照。