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1. 发明授权

US09003227B1 Recovering file system blocks of file systems 有权
标题翻译：恢复文件系统的文件系统块
公开(公告)号：US09003227B1
公开(公告)日：2015-04-07
申请号：US13539084
申请日：2012-06-29
申请人： Dixitkumar Vishnubhai Patel , Srinivasa Rao Vempati , Jean-Pierre Bono , Luogeng Dai
发明人： Dixitkumar Vishnubhai Patel , Srinivasa Rao Vempati , Jean-Pierre Bono , Luogeng Dai
IPC分类号： G06F11/00 , G06F11/16
CPC分类号： G06F11/165 , G06F11/1435
摘要： A method is used in recovering file system blocks of file systems. A first read error is encountered upon reading a file system block of a file system. The file system block includes a first set of chunks. A second read error is encountered upon reading a duplicate copy of the file system block. The duplicate copy of the file system block includes a second set of chunks. Each chunk of the first and second sets of chunks is evaluated. Based on the evaluation, the file system block is recovered.
摘要翻译：一种方法用于恢复文件系统的文件系统块。读取文件系统的文件系统块时会遇到第一个读取错误。文件系统块包括第一组块。读取文件系统块的副本时会遇到第二个读取错误。文件系统块的副本包括第二组块。评估第一组和第二组块的每个块。基于评估，文件系统块被恢复。

2. 发明授权

US08661068B1 Managing global metadata caches in data storage systems 有权
标题翻译：管理数据存储系统中的全局元数据缓存
公开(公告)号：US08661068B1
公开(公告)日：2014-02-25
申请号：US13249008
申请日：2011-09-29
申请人： Christopher Seibel , Philippe Armangau , Sitaram Pawar , Jean-Pierre Bono , Diane M. Delgado
发明人： Christopher Seibel , Philippe Armangau , Sitaram Pawar , Jean-Pierre Bono , Diane M. Delgado
IPC分类号： G06F17/30
CPC分类号： G06F17/30132
摘要： A method is used in managing global metadata caches in data storage systems. Space is allocated in a memory of a data storage system to a global metadata cache which is configured to store metadata objects for a plurality of different file systems responsive to file system access requests from the plurality of different file systems. A metadata object associated with a file of a file system of the plurality of different file systems is stored in the global metadata cache. The metadata object is accessed by a plurality of different versions of the file.
摘要翻译：一种方法用于管理数据存储系统中的全局元数据高速缓存。空间被分配到数据存储系统的存储器中，该全局元数据缓存被配置为响应于来自多个不同文件系统的文件系统访问请求而存储多个不同文件系统的元数据对象。与多个不同文件系统的文件系统的文件相关联的元数据对象被存储在全局元数据高速缓存中。元数据对象被文件的多个不同版本访问。

3. 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。

4. 发明授权

US07206795B2 Prefetching and multithreading for improved file read performance 有权
标题翻译：预取和多线程以提高文件读取性能
公开(公告)号：US07206795B2
公开(公告)日：2007-04-17
申请号：US10744536
申请日：2003-12-22
申请人： Jean-Pierre Bono
发明人： Jean-Pierre Bono
IPC分类号： G06F17/30
CPC分类号： G06F17/30067 , Y10S707/99942 , Y10S707/99954
摘要： A problem of latency during a read of a file is solved by activating multiple concurrent read threads and also by prefetching blocks of file data from storage to a file system cache. Prefetching ensures that by the time that a client or application needs more file data, the file data will already have been read from storage and written to the cache as a background operation. For example, a file server responds to a request to read an extent of file data consisting of eight consecutive file blocks by activating concurrent block read threads for reading the file blocks and by prefetching from the storage to the cache eight more consecutive blocks of data from the file.
摘要翻译：通过激活多个并行读取线程以及通过将文件数据块从存储器预取到文件系统缓存来解决读取文件期间的延迟问题。预取确保在客户端或应用程序需要更多文件数据时，文件数据已经从存储器读取，并作为后台操作写入高速缓存。例如，文件服务器响应于通过激活用于读取文件块的并发块读取线程读取由八个连续文件块组成的文件数据的程度的请求，并且通过从存储器向高速缓存预取八个更多连续的数据块文件。

5. 发明申请

US20050223302A1 Multi-processor system having a watchdog for interrupting the multiple processors and deferring preemption until release of spinlocks 有权
标题翻译：多处理器系统具有用于中断多个处理器的看门狗，并推迟抢占直到释放螺旋锁
公开(公告)号：US20050223302A1
公开(公告)日：2005-10-06
申请号：US10810530
申请日：2004-03-26
申请人： Jean-Pierre Bono
发明人： Jean-Pierre Bono
IPC分类号： G06F11/00
CPC分类号： G06F11/0757 , G06F11/0724
摘要： Each processor in a multi-processor system is periodically interrupted for preempting the current thread for servicing of a watchdog thread during normal operation. Upon failing to service the watchdog thread over a grace period, a system watchdog initiates an orderly shutdown and reboot of the system. In order to prevent spinlocks from causing fake panics, if the current thread is holding one or more spinlocks when the interrupt occurs, then preemption is deferred until the thread releases the spinlocks. For diagnostic purposes, a count is kept of the number of times that preemption is deferred for each processor during each watchdog grace period.
摘要翻译：在正常操作期间，多处理器系统中的每个处理器被周期性地中断以抢占当前线程用于看门狗线程的维修。系统看门狗在宽限期内无法维护看门狗线程时，会启动系统的有序关机和重启。为了防止自旋锁引起假恐慌，如果当前线程在中断发生时持有一个或多个自旋锁，则推迟抢占直到线程释放自旋锁。为了诊断目的，计数保持在每个看门狗宽限期间每个处理器推迟抢占的次数。

6. 发明申请

US20050138091A1 Prefetching and multithreading for improved file read performance 有权
标题翻译：预取和多线程以提高文件读取性能
公开(公告)号：US20050138091A1
公开(公告)日：2005-06-23
申请号：US10744536
申请日：2003-12-22
申请人： Jean-Pierre Bono
发明人： Jean-Pierre Bono
IPC分类号： G06F17/30
CPC分类号： G06F17/30067 , Y10S707/99942 , Y10S707/99954
摘要： A problem of latency during a read of a file is solved by activating multiple concurrent read threads and also by prefetching blocks of file data from storage to a file system cache. Prefetching ensures that by the time that a client or application needs more file data, the file data will already have been read from storage and written to the cache as a background operation. For example, a file server responds to a request to read an extent of file data consisting of eight consecutive file blocks by activating concurrent block read threads for reading the file blocks and by prefetching from the storage to the cache eight more consecutive blocks of data from the file.
摘要翻译：通过激活多个并行读取线程以及通过将文件数据块从存储器预取到文件系统缓存来解决读取文件期间的延迟问题。预取确保在客户端或应用程序需要更多文件数据时，文件数据已经从存储器读取，并作为后台操作写入高速缓存。例如，文件服务器响应于通过激活用于读取文件块的并发块读取线程读取由八个连续文件块组成的文件数据的程度的请求，并且通过从存储器向高速缓存预取八个更多连续的数据块文件。

7. 发明授权

US08285758B1 Tiering storage between multiple classes of storage on the same container file system 有权
标题翻译：在同一容器文件系统上的多类存储之间进行分层存储
公开(公告)号：US08285758B1
公开(公告)日：2012-10-09
申请号：US11772138
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： G06F17/30
CPC分类号： G06F17/30079 , G06F17/30082 , G06F17/30221
摘要： Storage tiering uses file system awareness of storage class for storage allocation or migration of a storage object from one class of storage to another. For example, the storage object is a production file system, a logical unit number (LUN) of storage, or a snapshot copy of the production file system or LUN. Each storage class may comprise a different back-end disk type, such as Fiber Channel, ATA, etc. Storage allocation or migration is based on storage class to implement a storage policy, such as: (a) move snapshots off the class of storage of the production object and onto a different class of storage; (b) direct new writes to a specified class of storage; or (c) writes targeting a particular storage object are targeted to a particular class of storage.
摘要翻译：存储分层使用存储类的文件系统感知来存储分配或将存储对象从一类存储迁移到另一类。例如，存储对象是生产文件系统，存储的逻辑单元号（LUN）或生产文件系统或LUN的快照副本。每个存储类可以包括不同的后端盘类型，例如光纤通道，ATA等。存储分配或迁移基于存储类来实现存储策略，例如：（a）将快照从存储类移动的生产对象和不同类别的存储; （b）直接对指定类别的存储进行新的写入; 或（c）针对特定存储对象的写入针对特定类别的存储。

8. 发明授权

US08180973B1 Servicing interrupts and scheduling code thread execution in a multi-CPU network file server 有权
标题翻译：在多CPU网络文件服务器中服务中断和调度代码线程执行
公开(公告)号：US08180973B1
公开(公告)日：2012-05-15
申请号：US12646457
申请日：2009-12-23
申请人： Philippe Armangau , Jean-Pierre Bono , John Forecast , Sorin Faibish
发明人： Philippe Armangau , Jean-Pierre Bono , John Forecast , Sorin Faibish
IPC分类号： G06F12/00
CPC分类号： G06F9/5033 , G06F9/4812
摘要： Interrupts and code threads are assigned in a particular way to the core CPUs of a network file server in order to reduce latency for processing client requests for file access. Threads of the network stack are incorporated into real time threads that are scheduled by a real-time scheduler and executed exclusively by a plurality of the core CPUs that are not interrupted by disk adapter interrupts so that the disk adapter interrupts do not interrupt execution of the network stack. Instances of a storage access driver are hard affinity threads, and soft affinity threads include a multitude of instances of a thread of the file system stack for file access request processing so that file access request processing for a multitude of concurrent file access requests is load balanced over the core CPUs.
摘要翻译：中断和代码线程以特定方式分配给网络文件服务器的核心CPU，以减少处理客户端文件访问请求的延迟。网络堆栈的线程被并入由实时调度器调度并由不被磁盘适配器中断中断的多个核心CPU执行的实时线程中，由此磁盘适配器中断不中断执行网络堆栈存储访问驱动程序的实例是硬密切关系线程，并且软亲和线程包括用于文件访问请求处理的文件系统栈的线程的多个实例，使得用于多个并发文件访问请求的文件访问请求处理被负载平衡在核心CPU上。

9. 发明授权

US08032498B1 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：US08032498B1
公开(公告)日：2011-10-04
申请号：US12494115
申请日：2009-06-29
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： G06F7/00
CPC分类号： G06F17/30088
摘要： A snapshot copy facility maintains information indicating block ownership and sharing between successive versions by delegating block reference counts to parent-child relationships between the file system blocks, as indicated by block pointers in inodes and indirect blocks. When a child block becomes shared between a parent block of the production file and a parent block of a snapshot copy, the delegated reference count is split among the parent blocks. This method is compatible with a conventional data de-duplication facility, and avoids a need to update block reference counts in block metadata of child blocks of a shared indirect block upon splitting the shared indirect block when writing to a production file.
摘要翻译：快照复制设备通过将块引用计数委托给文件系统块之间的父子关系来维护指示块所有权和连续版本之间的共享的信息，如inode和间接块中的块指针所指示的。当子块在生产文件的父块和快照副本的父块之间共享时，委托引用计数在父块之间分割。该方法与传统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间接块时更新共享间接块的子块的块元数据块中的块引用计数。

10. 发明授权

US07162666B2 Multi-processor system having a watchdog for interrupting the multiple processors and deferring preemption until release of spinlocks 有权
标题翻译：多处理器系统具有用于中断多个处理器的看门狗，并推迟抢占直到释放螺旋锁
公开(公告)号：US07162666B2
公开(公告)日：2007-01-09
申请号：US10810530
申请日：2004-03-26
申请人： Jean-Pierre Bono
发明人： Jean-Pierre Bono
IPC分类号： G06F11/00
CPC分类号： G06F11/0757 , G06F11/0724
摘要： Each processor in a multi-processor system is periodically interrupted for preempting the current thread for servicing of a watchdog thread during normal operation. Upon failing to service the watchdog thread over a grace period, a system watchdog initiates an orderly shutdown and reboot of the system. In order to prevent spinlocks from causing fake panics, if the current thread is holding one or more spinlocks when the interrupt occurs, then preemption is deferred until the thread releases the spinlocks. For diagnostic purposes, a count is kept of the number of times that preemption is deferred for each processor during each watchdog grace period.
摘要翻译：在正常操作期间，多处理器系统中的每个处理器被周期性地中断以抢占当前线程用于看门狗线程的维修。系统看门狗在宽限期内无法维护看门狗线程时，会启动系统的有序关机和重启。为了防止自旋锁引起假恐慌，如果当前线程在中断发生时持有一个或多个自旋锁，则推迟抢占直到线程释放自旋锁。为了诊断目的，计数保持在每个看门狗宽限期间每个处理器推迟抢占的次数。

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