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1. 发明授权

US08010493B2 Systems and methods for a snapshot of data 有权
标题翻译：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
申请人： Robert J. Anderson , Neal T. Fachan , Eric M. Lemar , Aaron J. Passey , David W. Richards , Darren P. Schack
发明人： Robert J. Anderson , Neal T. Fachan , Eric M. Lemar , Aaron J. Passey , David W. Richards , Darren P. Schack
IPC分类号： G06F7/04 , G06F17/30
CPC分类号： G06F17/30088 , G06F17/3015 , Y10S707/99955
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。

2. 发明授权

US07882071B2 Systems and methods for a snapshot of data 有权
标题翻译：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
申请人： Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Darren P. Schack
发明人： Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Darren P. Schack
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。

3. 发明申请

US20080059541A1 Systems and methods for a snapshot of data 有权
公开(公告)号：US20080059541A1
公开(公告)日：2008-03-06
申请号：US11507069
申请日：2006-08-18
申请人： Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Darren P. Schack
发明人： Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Darren P. Schack
IPC分类号： G06F17/30
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.

4. 发明申请

US20080046476A1 Systems and methods for a snapshot of data 有权
公开(公告)号：US20080046476A1
公开(公告)日：2008-02-21
申请号：US11506610
申请日：2006-08-18
申请人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
发明人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
IPC分类号： G06F17/30
CPC分类号： G06F17/30088 , G06F17/3015 , Y10S707/99953
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.

5. 发明授权

US08356013B2 Systems and methods for a snapshot of data 有权
标题翻译：数据快照的系统和方法
公开(公告)号：US08356013B2
公开(公告)日：2013-01-15
申请号：US12972260
申请日：2010-12-17
申请人： Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Darren P. Schack
发明人： Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Darren P. Schack
IPC分类号： G06F7/04 , G06F17/30
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 an embodiment, a snapshot tracking data structure is maintained for efficient creation and deletion of 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，维护快照跟踪数据结构以有效地创建和删除快照。

6. 发明授权

US08200632B2 Systems and methods for adaptive copy on write 有权
标题翻译：自适应复制的系统和方法
公开(公告)号：US08200632B2
公开(公告)日：2012-06-12
申请号：US13007498
申请日：2011-01-14
申请人： Darren P. Schack , Eric M. Lemar , Neal T. Fachan
发明人： Darren P. Schack , Eric M. Lemar , Neal T. Fachan
IPC分类号： G06F17/00
CPC分类号： G06F11/1435 , G06F17/30088 , G06F17/3015 , G06F2201/84
摘要： In one embodiment, a user or client device communicates with 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 some embodiments, systems and methods intelligently choose whether to use copy-on-write or point-in-time copy when saving data in a snapshot version of a file whose current version is being overwritten. In some embodiments, systems and methods allow snapshot users to return from a snapshot directory to the immediate parent directory from which the user entered into the snapshot.
摘要翻译：在一个实施例中，用户或客户机设备与包括一个或多个物理节点的分布式文件系统进行通信。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。在一些实施例中，系统和方法智能地选择当在当前版本被覆盖的文件的快照版本中保存数据时是使用写时复制还是时间点拷贝。在一些实施例中，系统和方法允许快照用户从快照目录返回到用户输入快照的直接父目录。

7. 发明授权

US07882068B2 Systems and methods for adaptive copy on write 有权
标题翻译：自适应复制的系统和方法
公开(公告)号：US07882068B2
公开(公告)日：2011-02-01
申请号：US11894756
申请日：2007-08-21
申请人： Darren P. Schack , Eric M. Lemar , Neal T. Fachan
发明人： Darren P. Schack , Eric M. Lemar , Neal T. Fachan
IPC分类号： G06F7/00 , G06F13/00
CPC分类号： G06F11/1435 , G06F17/30088 , G06F17/3015 , G06F2201/84
摘要： In one embodiment, a user or client device communicates with 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 some embodiments, systems and methods intelligently choose whether to use copy-on-write or point-in-time copy when saving data in a snapshot version of a file whose current version is being overwritten. In some embodiments, systems and methods allow snapshot users to return from a snapshot directory to the immediate parent directory from which the user entered into the snapshot.
摘要翻译：在一个实施例中，用户或客户机设备与包括一个或多个物理节点的分布式文件系统进行通信。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。在一些实施例中，系统和方法智能地选择当在当前版本被覆盖的文件的快照版本中保存数据时是使用写时复制还是时间点拷贝。在一些实施例中，系统和方法允许快照用户从快照目录返回到用户输入快照的直接父目录。

8. 发明申请

US20100161557A1 SYSTEMS AND METHODS FOR A SNAPSHOT OF DATA 有权
标题翻译：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
申请人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
发明人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
IPC分类号： G06F17/30 , G06F17/00
CPC分类号： G06F17/30088 , G06F17/3015 , Y10S707/99953
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。

9. 发明授权

US07680836B2 Systems and methods for a snapshot of data 有权
标题翻译：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
申请人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
发明人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
IPC分类号： G06F7/00 , G06F17/00 , G06F12/00 , G06F17/30
CPC分类号： G06F17/30088 , G06F17/3015 , Y10S707/99953
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。

10. 发明授权

US08015156B2 Systems and methods for a snapshot of data 有权
标题翻译：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
申请人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
发明人： Robert J. Anderson , Neal T. Fachan , Justin M. Husted , Eric M. Lemar , Aaron J. Passey , Darren P. Schack
IPC分类号： G06F7/02 , G06F17/30
CPC分类号： G06F17/30088 , G06F17/3015 , Y10S707/99953
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。

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