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21. 发明授权

US08359430B1 Techniques for efficient mass storage layout optimization 有权
公开(公告)号：US08359430B1
公开(公告)日：2013-01-22
申请号：US11848101
申请日：2007-08-30
申请人： Robert L. Fair
发明人： Robert L. Fair
IPC分类号： G06F12/08
CPC分类号： G06F12/023 , G06F3/061 , G06F3/064 , G06F3/0643 , G06F3/0673 , G06F3/0683 , G06F12/0804 , G06F12/0862 , G06F12/0868 , G06F2206/1004 , G06F2212/1044 , G06F2212/461 , G06F2212/468 , G06F2212/604
摘要： A data storage system can automatically improve the layout of data blocks on a mass storage subsystem by collecting optimization information during both read and write activities, then processing the optimization information to limit the impact of optimization activities on the system's response to client requests. Processing read-path optimization information and write-path optimization information through shared rate-limiting logic simplifies system administration and promotes phased implementation, which can reduce the difficulty of developing a self-optimizing storage server.

22. 发明授权

US07873963B1 Method and system for detecting languishing messages 有权
标题翻译：检测消息消息的方法和系统
公开(公告)号：US07873963B1
公开(公告)日：2011-01-18
申请号：US11257541
申请日：2005-10-25
申请人： Robert L. Fair
发明人： Robert L. Fair
IPC分类号： G06F13/00 , G06F9/46 , G06F11/00
CPC分类号： G06F9/526 , G06F9/50 , G06F9/5016 , G06F9/524 , G06F11/1076 , G06F2211/1061
摘要： Provided is a method and system for detecting languishing messages of a storage operating system. Requests to access or manipulate data are received as messages by the storage operating system. The messages are processed after the acquisition of resources. If the resources cannot be acquired, then the messages wait on data structures of the storage operating system. An independent thread of the storage operating system identifies messages that are languishing. Information related to the languishing message is recorded and actions to permit messages to continue waiting or cause storage operating system downtime result.
摘要翻译：提供了一种用于检测存储操作系统的消息消息的方法和系统。存储操作系统作为消息接收访问或操纵数据的请求。消息在获取资源后被处理。如果无法获取资源，则消息等待存储操作系统的数据结构。存储操作系统的独立线程识别正在消失的消息。记录与消耗消息相关的信息，并且允许消息继续等待或导致存储操作系统停机时间结果的动作。

23. 发明授权

US07631148B2 Adaptive file readahead based on multiple factors 有权
标题翻译：基于多个因素的自适应文件读取
公开(公告)号：US07631148B2
公开(公告)日：2009-12-08
申请号：US10753608
申请日：2004-01-08
申请人： Robert L. Fair
发明人： Robert L. Fair
IPC分类号： G06F12/08 , G06F15/16
CPC分类号： G06F3/0611 , G06F3/0643 , G06F3/067 , G06F17/30132
摘要： A storage system is provided that implements a file system configured to optimize the amount of readahead data retrieved for each read stream managed by the file system. The file system relies on various factors to adaptively select an optimized readahead size for each read stream. Such factors may include the number of read requests processed in the read stream, an amount of client-requested data requested in the read stream, a read-access style associated with the read stream, and so forth. The file system is also configured to minimize cache pollution by adaptively selecting when readahead operations are performed for each read stream and determining how long each read stream's retrieved data is retained in memory.
摘要翻译：提供了一种存储系统，其实现文件系统，该文件系统被配置为优化由文件系统管理的每个读取流检索的预读数据量。文件系统依赖于各种因素来自适应地为每个读取流选择优化的预读大小。这些因素可以包括在读取流中处理的读取请求的数量，在读取流中请求的客户端请求的数据量，与读取流相关联的读取访问风格等等。文件系统还被配置为通过自适应地选择对每个读取流执行读取头操作并确定每个读取流的检索数据被保留在存储器中的时间来最小化高速缓存污染。

24. 发明授权

US07549014B1 Method and apparatus for coalesced multi-block read 有权
标题翻译：用于合并多块读取的方法和装置
公开(公告)号：US07549014B1
公开(公告)日：2009-06-16
申请号：US11112409
申请日：2005-04-22
申请人： Robert L. Fair
发明人： Robert L. Fair
IPC分类号： G06F12/00
CPC分类号： G06F3/064 , G06F3/0611 , G06F3/0674
摘要： A storage system, such as a storage server, receives a list of volume block numbers (VBNs) in a multi-block read request. In response to the request, the storage system coalesces the list into one or more chains of sequential VBNs. The storage system issues each chain to the storage subsystem.
摘要翻译：诸如存储服务器的存储系统在多块读请求中接收卷块号（VBN）的列表。响应于该请求，存储系统将列表合并成一个或多个连续的VBN链。存储系统向存储子系统发出每个链。

25. 发明申请

US20060294045A1 Control of service workload management 有权
公开(公告)号：US20060294045A1
公开(公告)日：2006-12-28
申请号：US11166478
申请日：2005-06-23
申请人： Darrell Suggs , John Scott , Robert L. Fair
发明人： Darrell Suggs , John Scott , Robert L. Fair
IPC分类号： G06F17/30
CPC分类号： G06F9/5027 , G06F2209/5021 , Y10S707/99932 , Y10S707/99933 , Y10S707/99945
摘要： A system and method are provided to manage different types of workload. The method comprises receiving a request, determining a class of the request, determining a priority level associated with the class of the request, and servicing the request utilizing the priority level of the class of the request. The class of the request may be associated with a target volume, as well as with a network protocol, or with a network port.

26. 发明授权

US07827349B1 Method and apparatus for coalesced multi-block read 有权
标题翻译：用于合并多块读取的方法和装置
公开(公告)号：US07827349B1
公开(公告)日：2010-11-02
申请号：US12476156
申请日：2009-06-01
申请人： Robert L. Fair
发明人： Robert L. Fair
IPC分类号： G06F12/00
CPC分类号： G06F3/064 , G06F3/0611 , G06F3/0674
摘要： A storage system, such as a storage server, receives a list of volume block numbers (VBNs) in a multi-block read request. In response to the request, the storage system coalesces the list into one or more chains of sequential VBNs. The storage system issues each chain to the storage subsystem.
摘要翻译：诸如存储服务器的存储系统在多块读请求中接收卷块号（VBN）的列表。响应于该请求，存储系统将列表合并成一个或多个连续的VBN链。存储系统向存储子系统发出每个链。

27. 发明授权

US07698506B1 Partial tag offloading for storage server victim cache 有权
标题翻译：存储服务器受害者缓存的部分标记卸载
公开(公告)号：US07698506B1
公开(公告)日：2010-04-13
申请号：US11796337
申请日：2007-04-26
申请人： Robert L. Fair , William P. McGovern , Thomas C. Holland , Jason Sylvain
发明人： Robert L. Fair , William P. McGovern , Thomas C. Holland , Jason Sylvain
IPC分类号： G06F13/00 , G06F13/28 , G06F12/00
CPC分类号： G06F12/127 , G06F12/0868 , G06F12/0897 , G06F2212/263 , G06F2212/264
摘要： A technique for partially offloading, from a main cache in a storage server, the storage of cache tags for data blocks in a victim cache of the storage server, is described. The technique includes storing, in the main cache, a first subset of the cache tag information for each of the data blocks, and storing, in a victim cache of the storage server, a second subset of the cache tag information for each of the data blocks. This technique avoids the need to store the second subset of the cache tag information in the main cache.
摘要翻译：描述了用于从存储服务器中的主缓存部分卸载存储服务器的受害缓存中的数据块的高速缓存标签的存储的技术。该技术包括在主缓存中存储每个数据块的高速缓存标签信息的第一子集，并且在存储服务器的受害缓存中存储每个数据的高速缓存标签信息的第二子集块。该技术避免了将缓存标签信息的第二子集存储在主缓存中的需要。

28. 发明授权

US07676633B1 Efficient non-blocking storage of data in a storage server victim cache 有权
标题翻译：在存储服务器受害者缓存中高效地非阻塞地存储数据
公开(公告)号：US07676633B1
公开(公告)日：2010-03-09
申请号：US11701011
申请日：2007-01-31
申请人： Robert L. Fair , Naveen Bali
发明人： Robert L. Fair , Naveen Bali
IPC分类号： G06F12/02 , G06F12/12
CPC分类号： G06F12/121 , G06F12/0866 , G06F12/0897
摘要： A network storage server has a non-volatile mass storage facility, a main cache and a victim cache. A technique of efficient, non-blocking storage of data in the victim cache includes, responding to a caller process by, without blocking the caller process, selecting a first storage unit for eviction from the main cache, destaging the first storage unit for storage in the victim cache without copying the first storage unit, and identifying a second storage unit to the caller process as available to be overwritten in the main cache.
摘要翻译：网络存储服务器具有非易失性大容量存储设备，主缓存和受害缓存。在受害者缓存中有效地，非阻塞地存储数据的技术包括：通过在不阻塞呼叫者进程的情况下响应于呼叫者进程，选择第一存储单元以从主缓存中驱逐，使第一存储单元降级以存储在所述受害者缓存，而不复制所述第一存储单元，以及向所述主缓存中标识可被覆盖的所述主叫进程的第二存储单元。

29. 发明授权

US07409522B1 Method and system for reallocating data in a file system 有权
标题翻译：在文件系统中重新分配数据的方法和系统
公开(公告)号：US07409522B1
公开(公告)日：2008-08-05
申请号：US11260534
申请日：2005-10-26
申请人： Robert L. Fair , John K. Edwards
发明人： Robert L. Fair , John K. Edwards
IPC分类号： G06F12/00
CPC分类号： G06F12/023 , G06F3/061 , G06F3/0638 , G06F3/067 , G06F2206/1004 , Y10S707/99953 , Y10S707/99955
摘要： A method and system for reallocating the data blocks of a logical data entity are described. According to one aspect of the invention, the physical arrangement of data blocks of a logical data entity are analyzed to determine a fragmentation level. Next the fragmentation level is compared with a fragmentation threshold previously assigned to the logical data entity. If the fragmentation level exceeds the fragmentation threshold, only those data blocks of the logical data entity that are within a predefined allocation area having a predetermined number of contiguous data blocks that are not associated with the logical data entity are reallocated.
摘要翻译：描述了用于重新分配逻辑数据实体的数据块的方法和系统。根据本发明的一个方面，分析逻辑数据实体的数据块的物理布置以确定分段级别。接下来，将分段级别与先前分配给逻辑数据实体的分段阈值进行比较。如果分段级别超过分段阈值，则仅重新分配具有预定数量的与逻辑数据实体相关联的预定数量的连续数据块的预定义分配区域内的逻辑数据实体的那些数据块。

30. 发明授权

US07409511B2 Cloning technique for efficiently creating a copy of a volume in a storage system 有权
标题翻译：用于有效创建存储系统中卷的副本的克隆技术
公开(公告)号：US07409511B2
公开(公告)日：2008-08-05
申请号：US10837254
申请日：2004-04-30
申请人： John K. Edwards , Robert L. Fair
发明人： John K. Edwards , Robert L. Fair
IPC分类号： G06F12/16
CPC分类号： G06F17/30067
摘要： A cloning technique enables efficient and substantially instantaneous creation of a clone that is a writable copy of a “parent” virtual volume (vvol) in an aggregate of a storage system. A base snapshot is provided from the parent vvol. In addition, a new vvol is created, along with a new file system identifier, a new subdirectory in the aggregate and a new storage label file. The new vvol is embodied as a clone and comprises an appropriately sized container file, wherein initially the container file has no data. Moreover, a volume information (volinfo) block for the clone is created that is a slightly modified version of the volinfo block from the base snapshot; the modified volinfo block is written to the container file. The clone is then instantiated by loading a file system associated with the new vvol onto the clone and bringing the clone “online”.
摘要翻译：克隆技术能够有效地并且基本上即时创建作为存储系统的聚合中的“父”虚拟卷（vvol）的可写拷贝的克隆。从父vvol提供基本快照。此外，还创建了一个新的vvol，以及新的文件系统标识符，聚合中的新子目录和新的存储标签文件。新的vvol被实现为克隆并且包括适当大小的容器文件，其中最初容器文件没有数据。此外，创建克隆的卷信息（volinfo）块，其是来自基本快照的volinfo块的稍微修改的版本; 修改后的volinfo块被写入容器文件。然后通过将与新vvol相关联的文件系统加载到克隆并将克隆“联机”来实例化克隆。

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