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1.发明授权Distributed file hierarchy management in a clustered redirect-on-write file system 失效集群的重定向文件系统中的分布式文件层次结构管理公开(公告)号：US08495112B2
公开(公告)日：2013-07-23
申请号：US12879717
申请日：2010-09-10
IPC分类号： G06F17/30
CPC分类号： G06F17/30094 , G06F17/302
摘要： Management of a file hierarchy for a clustered file system can be distributed across nodes of the cluster. A cluster file hierarchy is accessed to determine location of a file in response to a request to write to a file. A first node maintains the cluster file hierarchy. It is determined that management of a fileset object, which represents a fileset that includes the file, has been delegated to a second node based, at least in part, on said accessing the cluster file hierarchy. A node file hierarchy maintained by the second node is accessed responsive to determining the delegation. The cluster file hierarchy represents filesets of the clustered file system and the node hierarchy represents a subset of one or more of the filesets. Location of the file is determined based, at least in part, on said accessing the node file hierarchy.
摘要翻译： 集群文件系统的文件层次结构的管理可以分布在集群的节点上。 访问集群文件层次结构以确定文件的位置以响应写入文件的请求。 第一个节点维护群集文件层次结构。 至少部分地基于对所述群集文件层次结构的访问，确定表示包括该文件的文件集的文件集对象的管理已委托给第二节点。 响应于确定委托而访问由第二节点维护的节点文件层次结构。 集群文件层次结构表示集群文件系统的文件集，节点层次结构表示一个或多个文件集的子集。 至少部分地基于访问节点文件层级来确定文件的位置。
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公开(公告)号：US08402008B2
公开(公告)日：2013-03-19
申请号：US12879887
申请日：2010-09-10
CPC分类号： G06F17/30088
摘要： In some embodiments, a file management unit located in the operating system detects a write operation that writes the data blocks within the consistency snapshot (in main memory) to the persistent storage. The file management unit can then determine that all transactions have been completed before the write operation begins. In some instances, the file management unit then attempts to write the data blocks within the consistency snapshot to the persistent storage. The file management unit can then receive a notification that the write operation did not successfully write the data blocks from the consistency snapshot to the persistent storage. In some embodiments, the write operation is not successful because there are fewer free data blocks in the persistent storage than needed for writing the data blocks within the consistency snapshot to persistent storage. The file management can then wait a period of time. After the file management unit has waited for a period of time, it can make another attempt to write the data blocks within the consistency snapshot to the persistent storage.
摘要翻译： 在一些实施例中，位于操作系统中的文件管理单元检测将持续存储器内的一致性快照（主存储器）内的数据块写入的写入操作。 然后，文件管理单元可以在写操作开始之前确定所有事务已经完成。 在某些情况下，文件管理单元然后尝试将一致性快照内的数据块写入持久存储器。 文件管理单元然后可以接收到写入操作没有成功地将数据块从一致性快照写入永久存储器的通知。 在一些实施例中，写入操作不成功，因为永久存储器中的空闲数据块比将一致性快照中的数据块写入永久存储器所需要的少。 然后，文件管理可以等待一段时间。 文件管理单元等待一段时间后，可以再次尝试将一致性快照中的数据块写入永久存储。
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3.发明授权File removal with no available disk blocks in redirect-on-write file systems 失效在重定向写入文件系统中没有可用磁盘块的文件删除公开(公告)号：US08401995B2
公开(公告)日：2013-03-19
申请号：US12879834
申请日：2010-09-10
CPC分类号： G06F17/30138 , G06F17/30117
摘要： Embodiments include a method for removing a file within a redirect-on-write file system. In some embodiments, a file removal operation is detected in a file management unit, which resides in a memory unit. It is then determined that the number of free data blocks in the persistent storage is below a minimum threshold. The file removal operation is written to a log used for storing system operations. A file management unit is notified of the successful write of the file removal operation to the log used for storing system operations. The data blocks are moved from the file selected for removal to a list of free data blocks. The indirect blocks from the file selected for removal are moved to a data block removal list.
摘要翻译： 实施例包括用于在写入重定向文件系统中移除文件的方法。 在一些实施例中，在位于存储器单元中的文件管理单元中检测文件删除操作。 然后确定持久存储器中的空闲数据块的数量低于最小阈值。 文件删除操作被写入用于存储系统操作的日志。 通知文件管理单元成功写入文件删除操作到用于存储系统操作的日志。 数据块从被选择删除的文件移动到空闲数据块的列表。 选择要删除的文件的间接块被移动到数据块删除列表。
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公开(公告)号：US20120066183A1
公开(公告)日：2012-03-15
申请号：US12879882
申请日：2010-09-10
IPC分类号： G06F17/30
CPC分类号： G06F17/3007 , G06F17/30017 , G06F17/30088
摘要： After a clone file is created from a file, a write request targeting the clone file can be handled. It is determined that the write request indicates the clone file that was cloned from a file in a first fileset. The clone file is of a second fileset and a clustered file system comprises the first fileset and the second fileset. A data block of the clone file affected by the write request is determined. It is then determined that the data block at a current location cannot be modified. The write request is implemented with respect to the data block at a different location. It is indicated that the data block at the different location can be modified for subsequent write requests that indicate the clone file
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公开(公告)号：US09606747B2
公开(公告)日：2017-03-28
申请号：US13100332
申请日：2011-05-04
CPC分类号： G06F3/065 , G06F3/0607 , G06F3/067 , G06F17/30079 , G06F17/30088 , G06F17/3038 , G06F17/30575
摘要： Mechanisms are provided for importing pre-existing data into a storage system utilizing a current storage management system that is different from an original storage management system used to create the pre-existing data. One or more data storage devices are integrated into the storage system in-place without modification of the pre-existing data stored on the one or more data storage devices. Metadata for the pre-existing data is created based on a linear progression of data in the pre-existing data. Read access requests targeting the pre-existing data are executed using the created metadata. Write access requests targeting the pre-existing data are executed by redirecting the write access requests to a copy of the pre-existing data created in another storage location.
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6.发明申请公开(公告)号：US20120284230A1
公开(公告)日：2012-11-08
申请号：US13449860
申请日：2012-04-18
IPC分类号： G06F7/00
CPC分类号： G06F3/065 , G06F3/0607 , G06F3/067 , G06F17/30079 , G06F17/30088 , G06F17/3038 , G06F17/30575
摘要： Mechanisms are provided for importing pre-existing data into a storage system utilizing a current storage management system that is different from an original storage management system used to create the pre-existing data. One or more data storage devices are integrated into the storage system in-place without modification of the pre-existing data stored on the one or more data storage devices. Metadata for the pre-existing data is created based on a linear progression of data in the pre-existing data. Read access requests targeting the pre-existing data are executed using the created metadata. Write access requests targeting the pre-existing data are executed by redirecting the write access requests to a copy of the pre-existing data created in another storage location.
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7.发明申请INDEPENDENT FILESET GENERATIONS IN A CLUSTERED REDIRECT-ON-WRITE FILESYSTEM 有权一个集中的重写式文件系统中的独立FILESET生成公开(公告)号：US20120150800A1
公开(公告)日：2012-06-14
申请号：US12963068
申请日：2010-12-08
IPC分类号： G06F17/00
CPC分类号： G06F17/30088
摘要： Maintaining a generation value for each fileset that is distinct from a corresponding fileset manager preserves the independence of nodes while also allowing distributed fileset management. A fileset manager can maintain a value that reflects consistency snapshots for that node (“node generation”) separately from a value that reflects consistency snapshots for a particular fileset (“fileset generation”).
摘要翻译： 维护与相应文件集管理器不同的每个文件集的生成值保留节点的独立性，同时还允许分布式文件集管理。 文件集管理器可以将反映该节点（“节点生成”）的一致性快照的值与反映特定文件集（“文件集生成”）的一致性快照的值分开保留。
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公开(公告)号：US08195611B2
公开(公告)日：2012-06-05
申请号：US12414870
申请日：2009-03-31
申请人： Janet E. Adkins , Joon Chang , Manoj N. Kumar , Grover H. Neuman
发明人： Janet E. Adkins , Joon Chang , Manoj N. Kumar , Grover H. Neuman
CPC分类号： G06F17/30088
摘要： One embodiment is for using a sparse file as a clone. The method includes creating, by an application associated with a computer system, a snapshot of a file, such as an individual file, a collection of files, file system, directories, and so forth. Further, the method includes requesting, by the application, a clone of that created snapshot. Further still, the method includes generating, by the application, an empty sparse having at least one inode identifying the empty sparse file as the clone and pointing to the snapshot associated with the clone. Thereby, the requested clone is created using the created sparse file, which begins as an empty sparse file.
摘要翻译： 一个实施例是使用稀疏文件作为克隆。 该方法包括通过与计算机系统相关联的应用来创建诸如单个文件的文件的快照，文件集合，文件系统，目录等。 此外，该方法包括由应用程序请求创建的快照的克隆。 此外，该方法还包括由应用程序生成具有至少一个标识空稀疏文件作为克隆并指向与克隆相关联的快照的空的稀疏。 因此，使用创建的稀疏文件创建所请求的克隆，该稀疏文件以空稀疏文件开头。
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9.发明申请DISTRIBUTED FILE HIERARCHY MANAGEMENT IN A CLUSTERED REDIRECT-ON-WRITE FILE SYSTEM 失效分布式重写文件系统中的分布式文件分层管理公开(公告)号：US20120066278A1
公开(公告)日：2012-03-15
申请号：US12879717
申请日：2010-09-10
IPC分类号： G06F17/30
CPC分类号： G06F17/30094 , G06F17/302
摘要： Management of a file hierarchy for a clustered file system can be distributed across nodes of the cluster. A cluster file hierarchy is accessed to determine location of a file in response to a request to write to a file. A first node maintains the cluster file hierarchy. It is determined that management of a fileset object, which represents a fileset that includes the file, has been delegated to a second node based, at least in part, on said accessing the cluster file hierarchy. A node file hierarchy maintained by the second node is accessed responsive to determining the delegation. The cluster file hierarchy represents filesets of the clustered file system and the node hierarchy represents a subset of one or more of the filesets. Location of the file is determined based, at least in part, on said accessing the node file hierarchy.
摘要翻译： 集群文件系统的文件层次结构的管理可以分布在集群的节点上。 访问集群文件层次结构以确定文件的位置以响应写入文件的请求。 第一个节点维护群集文件层次结构。 至少部分地基于对所述群集文件层次结构的访问，确定表示包括该文件的文件集的文件集对象的管理已委托给第二节点。 响应于确定委托而访问由第二节点维护的节点文件层次结构。 集群文件层次结构表示集群文件系统的文件集，节点层次结构表示一个或多个文件集的子集。 至少部分地基于访问节点文件层级来确定文件的位置。
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公开(公告)号：US08726080B2
公开(公告)日：2014-05-13
申请号：US13210093
申请日：2011-08-15
IPC分类号： G06F11/00
CPC分类号： G06F17/302 , G06F11/1435
摘要： A method including creating a commit-in-progress context from a copy of a data object in a redirect-on-write file system; and begin storing the commit-in-progress context in a persistent storage device. The method further includes, while storing the commit-in-progress context in the persistent storage device: receiving a notification of a pending modification to the first data object, creating an update-in-progress context from a copy of the commit-in-progress context, and begin applying the modification to the update-in-progress context. The method further includes detecting that a connectivity error has occurred between the commit-in-progress context and the storage device, and in response, identifying whether the commit-in-progress context is successfully stored in the storage device. In response to identifying that the commit-in-progress context is not successfully stored: aborting the storing of the commit-in-progress context, assigning a new commit-in-progress context, and begin storing the new commit-in-progress context.
摘要翻译： 一种方法，包括从写入重定向文件系统中的数据对象的副本创建在进行中提交的上下文; 并开始将提交在进行中的上下文存储在持久存储设备中。 所述方法还包括：在所述永久存储设备中存储所述提交正在进行的上下文中：接收对所述第一数据对象的未决修改的通知，从所述提交内容的副本创建正在进行的更新上下文， 进度上下文，并开始将修改应用于更新进度上下文。 该方法还包括检测在提交在进行中的上下文和存储设备之间已经发生连接错误，并且作为响应，识别提交在进行中的上下文是否被成功地存储在存储设备中。 响应于确定提交在进行中的上下文未成功存储：中止提交在进行中的上下文的存储，分配新的提交在进行中的上下文，并开始存储新的提交在进行中的上下文 。
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