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1. 发明授权

US08862642B1 Endurant cache 有权
标题翻译： Endurant缓存
公开(公告)号：US08862642B1
公开(公告)日：2014-10-14
申请号：US13538921
申请日：2012-06-29
申请人： Alain Hamel , John Benjamin Brazel , Justin Michael Husted , Max Laier
发明人： Alain Hamel , John Benjamin Brazel , Justin Michael Husted , Max Laier
IPC分类号： G06F17/30
CPC分类号： G06F17/30194
摘要： Various embodiments are directed towards enabling data writes utilizing a node cache and a logstore stored on a stable storage device. A client device may send data to a node for writing to a parent file. The node may cache the received data prior to writing the data to the parent file. Caching the received data may comprise adding the received data to a node cache and to a logstore. In one embodiment, the node cache may include a coalescer that combines data from a plurality of data writes from the client device to the node prior to writing to the parent file. In some embodiments, the logstore may be mirrored logstore on one or more stable storage devices. The parent file may periodically be updated from the node cache data. After the parent file is updated, the node cache data and the logstore data may be purged.
摘要翻译：各种实施例涉及利用存储在稳定存储设备上的节点高速缓存和日志仓的启用数据写入。客户端设备可以向节点发送数据以写入父文件。节点可以在将数据写入父文件之前缓存所接收的数据。缓存所接收的数据可以包括将接收到的数据添加到节点高速缓存和到logstore。在一个实施例中，节点高速缓存可以包括合并器，其将来自客户端设备的多个数据写入的数据组合到节点之前，该数据写入到父文件之前。在一些实施例中，可以在一个或多个稳定的存储设备上镜像日志库。可以从节点缓存数据中周期性地更新父文件。父文件更新后，可以清除节点缓存数据和日志库数据。

2. 发明授权

US09223500B1 File clones in a distributed file system 有权
标题翻译：分布式文件系统中的文件克隆
公开(公告)号：US09223500B1
公开(公告)日：2015-12-29
申请号：US13538789
申请日：2012-06-29
申请人： Eric Michael Lemar , Matthew D. Fleming , Asif Arif Daud , Mohd Fahadullah , Ronald Stuart Steinke , Justin Michael Husted
发明人： Eric Michael Lemar , Matthew D. Fleming , Asif Arif Daud , Mohd Fahadullah , Ronald Stuart Steinke , Justin Michael Husted
IPC分类号： G06F12/00 , G06F13/00 , G06F13/28 , G06F3/06
CPC分类号： G06F3/0608 , G06F3/064 , G06F3/0641 , G06F3/0643 , G06F3/067 , G06F11/2094
摘要： Embodiments are directed towards cloning files in a distributed file system. In response to a request to create file clones, a file cloning application can be employed to generate file clones based on a source file. The file cloning application can generate a new inode for each new file clone and at least one new shadow store. Data blocks from the source file can be transferred to the shadow store. The transferred data blocks can be replaced with reference blocks that point to the data blocks transferred to the shadow store. Likewise, additional reference blocks pointing to data blocks in the shadow store can be generated for the new file clone inodes. Further, the shadow store can maintain reference counters that track the number of reference blocks pointing to each shadow store block. Also, file clones can be generated based on a point-in-time snapshot of the source file.
摘要翻译：实施例针对在分布式文件系统中克隆文件。响应于创建文件克隆的请求，可以使用文件克隆应用程序来基于源文件生成文件克隆。文件克隆应用程序可以为每个新文件克隆和至少一个新的影子存储生成一个新的inode。来自源文件的数据块可以传输到影子存储。传输的数据块可以用指向传输到影子存储区的数据块的参考块代替。同样，可以为新的文件克隆inode生成指向影子存储区中的数据块的附加参考块。此外，影子存储可以维护跟踪指向每个影子存储块的参考块的数量的参考计数器。此外，可以基于源文件的时间点快照生成文件克隆。

3. 发明授权

US09058326B1 Recovery and flush of endurant cache 有权
标题翻译：持久缓存的恢复和刷新
公开(公告)号：US09058326B1
公开(公告)日：2015-06-16
申请号：US13539082
申请日：2012-06-29
申请人： Alain Hamel , John Benjamin Brazel , Justin Michael Husted , Max Laier
发明人： Alain Hamel , John Benjamin Brazel , Justin Michael Husted , Max Laier
IPC分类号： G06F17/30
CPC分类号： G06F17/30008 , G06F3/0619 , G06F3/0643 , G06F3/067 , G06F11/07 , G06F11/1469 , G06F11/3476 , G06F17/30115 , G06F17/30581 , H04L67/1095 , H04L67/2842 , H04L67/2852
摘要： Various embodiments are directed towards enabling data writes utilizing a node cache and a logstore stored on a stable storage device. A client device may send data to a node for writing to a parent file. The node may cache the received data prior to writing the data to the parent file. Caching the received data may comprise adding the received data to a node cache and to a logstore. In one embodiment, the node cache may include a coalescer that combines data from a plurality of data writes from the client device to the node prior to writing to the parent file. In some embodiments, the logstore may be mirrored logstore on one or more stable storage devices. The parent file may periodically be updated from the node cache data. After the parent file is updated, the node cache data and the logstore data may be purged.
摘要翻译：各种实施例涉及利用存储在稳定存储设备上的节点高速缓存和日志仓的启用数据写入。客户端设备可以向节点发送数据以写入父文件。节点可以在将数据写入父文件之前缓存所接收的数据。缓存所接收的数据可以包括将接收到的数据添加到节点高速缓存和到logstore。在一个实施例中，节点高速缓存可以包括合并器，其将来自客户端设备的多个数据写入的数据组合到节点之前，该数据写入到父文件之前。在一些实施例中，可以在一个或多个稳定的存储设备上镜像日志库。可以从节点缓存数据中周期性地更新父文件。父文件更新后，可以清除节点缓存数据和日志库数据。

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