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1. 发明授权

US07818535B1 Implicit container per version set 有权
标题翻译：每个版本集隐式容器
公开(公告)号：US07818535B1
公开(公告)日：2010-10-19
申请号：US11772154
申请日：2007-06-30
申请人： Jean-Pierre Bono , John M. Hayden , Sairam Veeraswamy , Sachin Mullick
发明人： Jean-Pierre Bono , John M. Hayden , Sairam Veeraswamy , Sachin Mullick
IPC分类号： G06F12/02
CPC分类号： G06F12/0868 , G06F3/0605 , G06F3/0649 , G06F3/0685 , G06F2212/261
摘要： When a client requests creation of a production file system or logical unit number (LUN) of storage, a sparse metavolume and a container file system built on the sparse metavolume are implicitly created for containing the production file system or LUN. By implicitly creating one container file system for each production file system or LUN, it is possible to hide the management of the container file system from the client or end user. The creation of snapshot copies in the container file system can also be hidden from the client or end user. Customer service level expectations and thin provisioning can be met automatically by storage policies implemented upon the container file system and the underlying sparse metavolume.
摘要翻译：当客户端请求创建存储的生产文件系统或逻辑单元号（LUN）时，会隐式创建一个稀疏Metavolume和构建在稀疏Metavolume上的容器文件系统，用于包含生产文件系统或LUN。通过为每个生产文件系统或LUN隐式创建一个容器文件系统，可以从客户端或最终用户隐藏容器文件系统的管理。在容器文件系统中创建快照副本也可以从客户机或最终用户隐藏。客户服务级别期望和精简配置可以通过在容器文件系统和底层稀疏元数据库上实现的存储策略自动满足。

2. 发明授权

US08924773B1 Reducing file system data unavailability window by adapting hierarchical recovery framework 有权
标题翻译：通过适应层次恢复框架减少文件系统数据不可用性窗口
公开(公告)号：US08924773B1
公开(公告)日：2014-12-30
申请号：US13538126
申请日：2012-06-29
申请人： Sairam Veeraswamy
发明人： Sairam Veeraswamy
IPC分类号： G06F11/00
CPC分类号： G06F11/0793 , G06F11/0727
摘要： A storage processor isolates and classifies file system faults and inconsistencies to produce a fault tree for inline error recovery. The storage processor isolates the metadata objects or objects that have internal inconsistencies, the storage processor creates a fault tree to map the file system; or portion of the file system with the errors or inconsistencies and the metadata objects dependent upon those objects. Once the fault having been mapped, determine the complexity of recovering the branch of the fault tree with the error. If the error is not too complex, performing recovery of the metadata objects online otherwise taking the system offline for file system recovery.
摘要翻译：存储处理器隔离和分类文件系统故障和不一致性，以生成用于内联错误恢复的故障树。存储处理器隔离具有内部不一致性的元数据对象或对象，存储处理器创建故障树以映射文件系统; 或具有错误或不一致性的文件系统的部分以及依赖于这些对象的元数据对象。一旦故障被映射，确定故障树分支恢复的复杂性。如果错误不是太复杂，请执行在线恢复元数据对象，否则使系统脱机以进行文件系统恢复。

3. 发明授权

US08904229B1 Online recovery of a file system experiencing failure of redundant logical storage storing a single point of failure 有权
标题翻译：在线恢复存在存储单点故障的冗余逻辑存储器故障的文件系统
公开(公告)号：US08904229B1
公开(公告)日：2014-12-02
申请号：US13538113
申请日：2012-06-29
申请人： Sairam Veeraswamy , Rolland Santimano
发明人： Sairam Veeraswamy , Rolland Santimano
IPC分类号： G06F11/00
CPC分类号： G06F11/1088 , G06F11/141 , G06F11/1471 , G06F11/2094 , G06F2211/1009
摘要： A storage processor includes storage for redundantly storing a log file of a journaling file system on a separate logical device from a primary copy of the log file and further provides for recovery of the file system upon failure of both the primary storage and the redundant storage storing the log file of the journaling file system by storing dirtied metadata objects in the cache of the storage processor to a vault area and then applying the stored dirtied metadata objects against the underlying persistent storage.
摘要翻译：存储处理器包括用于将日志文件系统的日志文件从日志文件的主副本冗余地存储在单独的逻辑设备上的存储器，并进一步提供在主存储器和冗余存储器存储失败时恢复文件系统日志记录文件系统的日志文件通过将存储处理器的缓存中的脏元数据对象存储到保管库区域，然后将存储的污染的元数据对象应用于底层持久存储。

4. 发明授权

US08566371B1 Reclaiming storage from a file system in a file server 有权
标题翻译：从文件服务器中的文件系统回收存储
公开(公告)号：US08566371B1
公开(公告)日：2013-10-22
申请号：US13210334
申请日：2011-08-15
申请人： Jean-Pierre Bono , John M. Hayden , Sairam Veeraswamy , Sachin Mullick
发明人： Jean-Pierre Bono , John M. Hayden , Sairam Veeraswamy , Sachin Mullick
IPC分类号： G06F17/30
CPC分类号： G06F17/30079 , G06F17/30082 , G06F17/30221
摘要： A file server provides access to a file system built on a logical volume of data storage. The file system includes multiple cylinder groups of file system blocks, and the logical volume includes slices of the cylinder groups. The file server has a storage reorganizer for identifying allocated file system blocks in a selected slice, and evacuating the identified allocated file system blocks from the selected slice. The selected slice is evacuated by reverse mapping each identified allocated block to identify a file to which the identified allocated block is allocated, allocating a new block in another slice, copying data from the identified allocated block to the new block, and substituting the new block for the identified allocated block in the file.
摘要翻译：文件服务器提供对构建在逻辑卷数据存储上的文件系统的访问。文件系统包括文件系统块的多个气缸组，逻辑卷包括气缸组的切片。文件服务器具有存储重组器，用于识别所选切片中的分配的文件系统块，并且将所识别的分配的文件系统块从所选切片中抽出。所选择的切片通过反向映射每个识别的分配的块来抽出，以识别所识别的分配的块被分配到的文件，在另一个分片中分配新的块，将数据从所识别的分配的块复制到新的块，并且替换新的块对于文件中标识的分配块。

5. 发明授权

US09223799B1 Lightweight metadata sharing protocol for location transparent file access 有权
标题翻译：轻量级元数据共享协议，用于位置透明文件访问
公开(公告)号：US09223799B1
公开(公告)日：2015-12-29
申请号：US13538137
申请日：2012-06-29
申请人： Sairam Veeraswamy , Kallol Par , Linton Vadakedathu
发明人： Sairam Veeraswamy , Kallol Par , Linton Vadakedathu
IPC分类号： G06F17/30
CPC分类号： G06F17/30233
摘要： A storage processor having access to published logical unit numbers of a common block file system mounted on another storage processor processes requests for a particular file system object of the common block file system using metadata objects of the common block file system cached in both storage processors to access storage units shared between the two storage processors.
摘要翻译：能够访问安装在另一个存储处理器上的公共块文件系统的发布的逻辑单元号的存储处理器使用在两个存储处理器中缓存的公共块文件系统的元数据对象来处理对公共块文件系统的特定文件系统对象的请求访问两个存储处理器之间共享的存储单元。

6. 发明授权

US08412688B1 Delegated reference count base file versioning 有权
标题翻译：委托引用计数基础文件版本控制
公开(公告)号：US08412688B1
公开(公告)日：2013-04-02
申请号：US13225224
申请日：2011-09-02
申请人： Philippe Armangau , William Davenport , Jean-Pierre Bono , Sairam Veeraswamy , Sitaram Pawar
发明人： Philippe Armangau , William Davenport , Jean-Pierre Bono , Sairam Veeraswamy , Sitaram Pawar
IPC分类号： G06F17/00
CPC分类号： G06F17/30088
摘要： A snapshot copy facility maintains information indicating ownership and sharing of child nodes in the hierarchy of a file between successive versions by delegating reference counts to the parent-child relationships between the nodes, as indicated by pointers in the parent nodes. When a child node becomes shared between a parent node of the production file and a parent node of a snapshot copy, the delegated reference count is split among the parent nodes. This method is compatible with a conventional data de-duplication facility, and avoids a need to update reference counts in metadata of child nodes of a shared intermediate node upon splitting the shared intermediate node when writing to a production file.
摘要翻译：快照复制工具通过将参考计数委托给父节点之间的父子关系来指示在连续版本之间的文件层次结构中的子节点的所有权和共享信息。当子节点在生产文件的父节点和快照副本的父节点之间共享时，委托引用计数在父节点之间拆分。该方法与常规的重复数据删除设备兼容，并且避免在写入生产文件时分割共享中间节点时更新共享中间节点的子节点的元数据中的引用计数。

7. 发明授权

US07882386B1 System and method for recovering a logical volume during failover or reboot of a file server in a data storage environment 有权
标题翻译：在数据存储环境中的文件服务器故障切换或重启期间恢复逻辑卷的系统和方法
公开(公告)号：US07882386B1
公开(公告)日：2011-02-01
申请号：US12052907
申请日：2008-03-21
申请人： Ajay S. Potnis , Jean-Pierre Bono , Sairam Veeraswamy , Rahul Bhagwat
发明人： Ajay S. Potnis , Jean-Pierre Bono , Sairam Veeraswamy , Rahul Bhagwat
IPC分类号： G06F11/00
CPC分类号： G06F11/1435 , G06F11/1008
摘要： This invention is a system and a method for recovering and repairing a logical volume in a data storage environment using a new architecture. The method of recovering a logical volume enables mounting of a file system by instantiating only a single slice under the sparse volume and instantiating rest of the slices provisioned under the sparse volume in background by a asynchronous recovery process or on-demand by the clients of the file system issuing an I/O on the slice volume. The method of repairing a logical volume provides the ability to regenerate the metadata required to reconstruct the corrupted volume.
摘要翻译：本发明是一种使用新架构在数据存储环境中恢复和修复逻辑卷的系统和方法。恢复逻辑卷的方法允许通过在稀疏卷下仅实例化单个切片并且在后台通过异步恢复过程或根据需要由客户端根据需要实例化在稀疏卷下提供的切片的其余部分来安装文件系统文件系统在片卷上发出I / O。修复逻辑卷的方法提供了重新生成重建损坏卷所需的元数据的能力。

8. 发明授权

US07870356B1 Creation of snapshot copies using a sparse file for keeping a record of changed blocks 有权
标题翻译：使用稀疏文件创建快照副本以保存已更改块的记录
公开(公告)号：US07870356B1
公开(公告)日：2011-01-11
申请号：US11678049
申请日：2007-02-22
申请人： Sairam Veeraswamy , Xiaoye Jiang
发明人： Sairam Veeraswamy , Xiaoye Jiang
IPC分类号： G06F12/00 , G06F13/00
CPC分类号： G06F17/30088 , G06F3/0607 , G06F3/065 , G06F3/067 , G06F17/30153
摘要： A snapshot copy facility responds to a request for writing new data to a block of a production dataset by saving original data of the block, and writing the new data to the block of the production dataset and keeping a record of the blocks of the production dataset have been changed since the point in time when the snapshot copy was created. For detection of corruption of the snapshot metadata and for portability of the snapshot copy software, a sparse file is used for keeping a record of the blocks of the production dataset that have been changed since the snapshot. For “copy on first write” snapshots, the sparse file is a “write once read many” (WORM) file to store old data of blocks. For “remap on write” snapshots, the sparse file is a “read-write” (RW) file to which writes to the production file are stored.
摘要翻译：快照复制设备通过保存块的原始数据并将新数据写入生产数据集的块并保存生产数据集的块的记录来响应将新数据写入生产数据集的块的请求自创建快照副本的时间起已经更改。为了检测快照元数据的损坏和快照拷贝软件的可移植性，使用稀疏文件来保存自快照以来已经更改的生产数据集的块的记录。对于“第一次写入”快照，稀疏文件是一个“写入一次读取”（WORM）文件来存储块的旧数据。对于“重写映像”快照，稀疏文件是存储对生产文件的写入的“读写”（RW）文件。

9. 发明授权

US09069682B1 Accelerating file system recovery by storing file system metadata on fast persistent storage during file system recovery 有权
标题翻译：通过在文件系统恢复期间将文件系统元数据存储在快速持久存储中来加速文件系统恢复
公开(公告)号：US09069682B1
公开(公告)日：2015-06-30
申请号：US13538104
申请日：2012-06-29
申请人： Sairam Veeraswamy
发明人： Sairam Veeraswamy
IPC分类号： G06F12/08 , G06F11/00 , G06F17/30 , G06F11/14
CPC分类号： G06F12/0888 , G06F11/1435 , G06F12/0866 , G06F17/30067 , G06F17/30132 , G06F2212/466
摘要： A system and method for providing a faster disk recovery is provided by bypassing the file system cache temporarily holding a sub set of metadata objects of the file system and instead using a persistent fast storage that can be accessed at deterministic speeds to hold all the metadata objects of the file system. The system speeds recovery by only writing updated metadata objects to the persistent disk storage when file system recovery is complete.
摘要翻译：通过绕过文件系统缓存来暂时保存文件系统的元数据对象的子集，而不是使用可以以确定速度访问以保持所有元数据对象的持久快速存储器来提供用于提供更快的磁盘恢复的系统和方法的文件系统。当文件系统恢复完成时，只需将更新的元数据对象写入永久磁盘存储，系统就可以加快恢复速度。

10. 发明授权

US08818951B1 Distributed file system having separate data and metadata and providing a consistent snapshot thereof 有权
标题翻译：分布式文件系统具有单独的数据和元数据，并提供一致的快照
公开(公告)号：US08818951B1
公开(公告)日：2014-08-26
申请号：US13339857
申请日：2011-12-29
申请人： Daniel A. Muntz , Alex Burlyga , David Noveck , Sairam Veeraswamy
发明人： Daniel A. Muntz , Alex Burlyga , David Noveck , Sairam Veeraswamy
IPC分类号： G06F17/30
CPC分类号： G06F11/1458 , G06F17/30088 , G06F17/30091 , G06F17/302 , G06F17/30203 , G06F2201/84
摘要： Described are techniques for creating a snapshot of a distributed file system or a file thereof. The distributed file system includes metadata file systems storing metadata about files in the distributed file system and includes data file systems storing file content data. Quiescing is performed for requests affecting the distributed file system, or a file thereof, for which a snapshot is being created. A snapshot of metadata is obtained. For the distributed file system, this includes a snapshot of each metadata file system. For a file, this includes a snapshot of the file's metadata. A snapshot of file data is obtained. For distributed file systems, this includes a snapshot of each data file system. For a file, this includes a snapshot of the file's data. Unquiescing is performed for requests affecting the distributed file system, or the file thereof, upon successful completion of obtaining snapshots of metadata and file data.
摘要翻译：描述了用于创建分布式文件系统或其文件的快照的技术。分布式文件系统包括存储关于分布式文件系统中的文件的元数据的元数据文件系统，并且包括存储文件内容数据的数据文件系统。对影响正在创建快照的分布式文件系统或其文件的请求执行静态。获得元数据的快照。对于分布式文件系统，这包括每个元数据文件系统的快照。对于文件，这包括文件元数据的快照。获取文件数据的快照。对于分布式文件系统，这包括每个数据文件系统的快照。对于文件，这包括文件数据的快照。在获得元数据和文件数据的快照成功完成后，对影响分布式文件系统或其文件的请求执行不合规。

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