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1. 发明申请

US20130275693A1 PREFERENTIAL BLOCK RECYCLING IN A REDIRECT-ON-WRITE FILESYSTEM 有权
标题翻译：重写式文件系统中的优先块循环
公开(公告)号：US20130275693A1
公开(公告)日：2013-10-17
申请号：US13444189
申请日：2012-04-11
申请人： Adekunle Bello , Andrew N. Solomon , Robert Wright Thompson
发明人： Adekunle Bello , Andrew N. Solomon , Robert Wright Thompson
IPC分类号： G06F12/12 , G06F12/16
CPC分类号： G06F3/067 , G06F3/0623 , G06F3/065
摘要： Provided are techniques for more efficient data storage on a computing system. An inode table is provided and populated with information relating to current and N previous locations within data storage that a particular data block has been stored. When a particular data block is modified in a redirect on write system, the modified data block is stored, if possible is a previous storage location for that particular data block and the current data location may be saved for use as the location for a subsequent modification.
摘要翻译：提供了一种用于计算系统上更有效的数据存储的技术。提供一个索引节点表并填充与数据存储器中当前和N个先前位置相关的信息，该数据存储器中已存储特定数据块。当特定数据块在写系统上的重定向被修改时，修改的数据块被存储，如果可能的话是该特定数据块的先前存储位置，并且当前数据位置可以被保存以用作后续修改的位置。

2. 发明申请

US20120216074A1 IN-FLIGHT BLOCK MAP FOR A CLUSTERED REDIRECT-ON-WRITE FILESYSTEM 有权
标题翻译：用于聚集的重写式文件系统的飞行块地图
公开(公告)号：US20120216074A1
公开(公告)日：2012-08-23
申请号：US13458796
申请日：2012-04-27
申请人： Joon Chang , Ninad S. Palsule , Andrew N. Solomon
发明人： Joon Chang , Ninad S. Palsule , Andrew N. Solomon
IPC分类号： G06F11/14 , G06F17/30
CPC分类号： G06F17/30227 , G06F17/30088
摘要： A cluster server manages allocation of free blocks to cluster clients performing writes in a clustered file system. The cluster server manages free block allocation with a free block map and an in-flight block map. The free block map is a data structure or hardware structure with data that indicates blocks or extents of the clustered file system that can be allocated to a client for the client to write data. The in-flight block map is a data structure or hardware structure with data that indicates blocks that have been allocated to clients, but remain in-flight. A block remains in-flight until the clustered file system metadata has been updated to reflect a write performed to that block by a client. After a consistency snapshot of the metadata is published to the storage resources, the data at the block will be visible to other nodes of the cluster.
摘要翻译：集群服务器管理空闲块的分配，以便在集群文件系统中执行写入的集群客户端。集群服务器通过空闲块映射和飞行中的块映射来管理空闲块分配。空闲块映射是一种数据结构或硬件结构，其中的数据指示可以分配给客户机来写入数据的集群文件系统的块或扩展区。飞行中的方块图是一种数据结构或硬件结构，其数据指示已分配给客户端但仍保留在飞行中的块。集群文件系统元数据已被更新以反映由客户端对该块执行的写入，块保持在飞行状态。在将元数据的一致性快照发布到存储资源之后，块中的数据将对集群的其他节点可见。

3. 发明申请

US20120150800A1 INDEPENDENT FILESET GENERATIONS IN A CLUSTERED REDIRECT-ON-WRITE FILESYSTEM 有权
标题翻译：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
申请人： Janet E. Adkins , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
发明人： Janet E. Adkins , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
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。

4. 发明申请

US20130047043A1 MERGING MULTIPLE CONTEXTS TO MANAGE CONSISTENCY SNAPSHOT ERRORS 失效
标题翻译：合并多个条件以管理一致性SNAPSHOT错误
公开(公告)号：US20130047043A1
公开(公告)日：2013-02-21
申请号：US13210093
申请日：2011-08-15
申请人： Janet E. Adkins , Matthew T. Brandyberry , Manoj N. Kumar , Andrew N. Solomon
发明人： Janet E. Adkins , Matthew T. Brandyberry , Manoj N. Kumar , Andrew N. Solomon
IPC分类号： G06F11/16
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。

5. 发明申请

US20120150926A1 DISTRIBUTED FREE BLOCK MAP FOR A CLUSTERED REDIRECT-ON-WRITE FILE SYSTEM 失效
标题翻译：用于集中的重写式写入文件系统的分布式免费块映射
公开(公告)号：US20120150926A1
公开(公告)日：2012-06-14
申请号：US12963166
申请日：2010-12-08
申请人： Janet E. Adkins , Matthew T. Brandyberry , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
发明人： Janet E. Adkins , Matthew T. Brandyberry , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
IPC分类号： G06F17/30
CPC分类号： G06F17/30182
摘要： In a cluster that distributes fileset management, fileset managers will maintain a free block map and an in-flight block map to allocate blocks to clients writing to a relevant fileset. A fileset manager managing free block allocation for cluster clients that write to a fileset managed by the fileset manager. Since a clustered file system manager manages an initial free block map for the cluster (“cluster free block map”), the clustered file system manager provisions free blocks to fileset managers from the cluster free block map. The fileset manager then allocates free blocks from the provisioned free blocks to cluster clients that write to the fileset managed by the fileset manager.
摘要翻译：在分发文件集管理的集群中，文件集管理器将维护一个空闲的块映射和一个正在运行中的块映射，以向写入相关文件集的客户端分配块。一个文件管理器管理器写入由文件集管理器管理的文件集的群集客户机的空闲块分配。由于集群文件系统管理器管理集群的初始自由块映射（“集群自由块映射”），所以集群文件系统管理器可以从集群自由块映射中为文件集管理器提供可用块。然后，文件集管理器从供应的空闲块中分配可用块到写入由文件集管理器管理的文件集的集群客户端。

6. 发明申请

US20120066190A1 HANDLING FILE OPERATIONS WITH LOW PERSISTENT STORAGE SPACE 有权
标题翻译：处理文件存储空间不足的文件
公开(公告)号：US20120066190A1
公开(公告)日：2012-03-15
申请号：US12879887
申请日：2010-09-10
申请人： Janet E. Adkins , Matthew T. Brandyberry , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
发明人： Janet E. Adkins , Matthew T. Brandyberry , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
IPC分类号： G06F17/00
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持久存储所需要的少。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。

7. 发明授权

US08726080B2 Merging multiple contexts to manage consistency snapshot errors 失效
标题翻译：合并多个上下文以管理一致性快照错误
公开(公告)号：US08726080B2
公开(公告)日：2014-05-13
申请号：US13210093
申请日：2011-08-15
申请人： Janet E. Adkins , Matthew T. Brandyberry , Manoj N. Kumar , Andrew N. Solomon
发明人： Janet E. Adkins , Matthew T. Brandyberry , Manoj N. Kumar , Andrew N. Solomon
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。

8. 发明授权

US08458181B2 Distributed free block map for a clustered redirect-on-write file system 失效
标题翻译：分布式自由块映射，用于集群的写入后重定向文件系统
公开(公告)号：US08458181B2
公开(公告)日：2013-06-04
申请号：US12963166
申请日：2010-12-08
申请人： Janet E. Adkins , Matthew T. Brandyberry , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
发明人： Janet E. Adkins , Matthew T. Brandyberry , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
IPC分类号： G06F7/00
CPC分类号： G06F17/30182
摘要： In a cluster that distributes fileset management, fileset managers will maintain a free block map and an in-flight block map to allocate blocks to clients writing to a relevant fileset. A fileset manager managing free block allocation for cluster clients that write to a fileset managed by the fileset manager. Since a clustered file system manager manages an initial free block map for the cluster (“cluster free block map”), the clustered file system manager provisions free blocks to fileset managers from the cluster free block map. The fileset manager then allocates free blocks from the provisioned free blocks to cluster clients that write to the fileset managed by the fileset manager.
摘要翻译：在分发文件集管理的集群中，文件集管理器将维护一个空闲的块映射和一个正在运行中的块映射，以向写入相关文件集的客户端分配块。一个文件管理器管理器写入由文件集管理器管理的文件集的群集客户机的空闲块分配。由于集群文件系统管理器管理集群的初始自由块映射（“集群自由块映射”），所以集群文件系统管理器可以从集群自由块映射中为文件集管理器提供可用块。然后，文件集管理器从供应的空闲块中分配可用块到写入由文件集管理器管理的文件集的集群客户端。

9. 发明授权

US08396832B2 Independent fileset generations in a clustered redirect-on-write filesystem 有权
标题翻译：在集群的重定向文件系统中独立的文件集
公开(公告)号：US08396832B2
公开(公告)日：2013-03-12
申请号：US12963068
申请日：2010-12-08
申请人： Janet E. Adkins , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
发明人： Janet E. Adkins , Joon Chang , David J. Craft , Manoj N. Kumar , Andrew N. Solomon
IPC分类号： G06F17/30
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。文件集管理器可以维护一个反映该节点（节点生成）的一致性快照的值，该值与反映特定文件集（文件集生成）的一致性快照的值分开。

10. 发明申请

US20120066181A1 FILE REMOVAL WITH NO AVAILABLE DISK BLOCKS IN REDIRECT-ON-WRITE FILE SYSTEMS 失效
标题翻译：在重写式文件系统中没有可用磁盘块的文件删除
公开(公告)号：US20120066181A1
公开(公告)日：2012-03-15
申请号：US12879834
申请日：2010-09-10
申请人： Janet E. Adkins , David J. Craft , Andrew N. Solomon
发明人： Janet E. Adkins , David J. Craft , Andrew N. Solomon
IPC分类号： G06F7/00
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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