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21. 发明申请

US20070208760A1 Data-state-describing data structures 审中-公开
标题翻译：数据状态描述数据结构
公开(公告)号：US20070208760A1
公开(公告)日：2007-09-06
申请号：US11370007
申请日：2006-03-06
申请人： James M. Reuter , James Jackson , Douglas L. Voigt , Alistair Veitch
发明人： James M. Reuter , James Jackson , Douglas L. Voigt , Alistair Veitch
IPC分类号： G06F7/00
CPC分类号： H04L67/1097 , G06F3/0613 , G06F3/0617 , G06F3/064 , G06F3/0644 , G06F3/0646 , G06F3/067
摘要： Various method and system embodiments of the present invention are directed to data and data-state-describing data structures employed in storage components of a distributed data-storage system. In one embodiment of the present invention, a hierarchical data structure stores the data state of a component data-storage system of a distributed data-storage system. In another embodiment of the present invention, a data-block address, stored in a computer-readable memory within a component data-storage system of a distributed data-storage system, includes a block identifier and additional data fields that serve to uniquely specify the addressed data block when multiple copies of the data block are stored in the component data-storage system under different redundancy schemes.
摘要翻译：本发明的各种方法和系统实施例涉及在分布式数据存储系统的存储组件中采用的数据和数据状态描述数据结构。在本发明的一个实施例中，分层数据结构存储分布式数据存储系统的组件数据存储系统的数据状态。在本发明的另一个实施例中，存储在分布式数据存储系统的组件数据存储系统内的计算机可读存储器中的数据块地址包括块标识符和附加数据字段，其用于唯一地指定当数据块的多个副本以不同的冗余方案存储在组件数据存储系统中时，被寻址的数据块。

22. 发明授权

US6055604A Forced transaction log posting using a least busy storage media without maintaining redundancy of the transaction log 失效
标题翻译：使用最不繁忙的存储介质进行强制事务日志记录，而不保持事务日志的冗余
公开(公告)号：US6055604A
公开(公告)日：2000-04-25
申请号：US920120
申请日：1997-08-26
申请人： Douglas L. Voigt , Don L. Burkes , Kirk A. Hanson
发明人： Douglas L. Voigt , Don L. Burkes , Kirk A. Hanson
IPC分类号： G06F3/06 , G11B19/12 , G11B20/12 , G11B27/00 , G11B27/11 , G06F12/08
CPC分类号： G11B20/12 , G11B19/12 , G11B27/002 , G11B27/11 , G11B2220/20 , G11B2220/415
摘要： A transaction log stored in a first memory is posted to one of two separate log areas, selectively, on a storage system having a plurality of storage media such as disk drives. Posting occurs to a "disk log" area when a page-full status of the first memory transaction log is detected. Alternatively, when a posting request occurs before a page-full status of the transaction log has been detected, then posting occurs immediately to a least busy disk of a "staging log" area. Posting occurs to the least busy disk of the "staging log" area by circumventing normal storage system data management and redundancy techniques such that data in the staging log area is not kept redundantly on the storage media. Rather redundancy is maintained by the fact that the transaction log remains with the first memory in addition to being copied to the staging log area. The staging log area includes reserved space on each of the plurality of storage media and is divided into logically separate portions on each of the storage media. This prohibits two consecutive "force" postings from overwriting the same portion of the reserved area, regardless of which disk is the least busy. Finally, sequence numbers and disk set numbers are associated with data records that are posted to the disk log areas for enabling recovery of the transaction log data from the disk log areas.
摘要翻译：存储在第一存储器中的事务日志可选择性地在具有多个存储介质（诸如磁盘驱动器）的存储系统上被发布到两个单独的日志区域中的一个。当检测到第一个内存事务日志的页面满状态时，会在“磁盘日志”区域发生过帐。或者，当在检测到事务日志的页面完整状态之前发生发布请求时，立即发布到“登台日志”区域的最不繁忙的盘。通过规避正常的存储系统数据管理和冗余技术，使得暂存日志区域中的数据不被冗余地保存在存储介质上，从而发生在“登台日志”区域的最不繁忙的磁盘上。相反，通过事务日志保留在第一个内存以及复制到登台日志区域的事实来维护冗余。所述登台日志区域包括在所述多个存储介质中的每一个上的保留空间，并且在每个所述存储介质上被分成逻辑上分离的部分。这阻止了两次连续的“强制”过帐覆盖保留区域的相同部分，无论哪个磁盘是最不忙的。最后，序列号和磁盘集编号与发布到磁盘日志区域的数据记录相关联，以便从磁盘日志区域恢复事务日志数据。

23. 发明授权

US5537534A Disk array having redundant storage and methods for incrementally generating redundancy as data is written to the disk array 失效
标题翻译：具有冗余存储的磁盘阵列和用于在数据写入磁盘阵列时递增地生成冗余的方法
公开(公告)号：US5537534A
公开(公告)日：1996-07-16
申请号：US386582
申请日：1995-02-10
申请人： Douglas L. Voigt , Marvin D. Nelson
发明人： Douglas L. Voigt , Marvin D. Nelson
IPC分类号： G06F3/06 , A61P9/00 , G06F11/10 , G11B20/12 , G06F11/00
CPC分类号： G06F11/1076 , G06F2211/1009 , G06F2211/1059
摘要： A data storage system has a disk array having multiple storage disks and a disk array controller coupled to the disk array to coordinate data transfer to and from the storage disks. The disk array is configured into multiple stripes where each stripe extends across multiple ones of the storage disks. Additionally, each stripe consists of multiple segments of storage space where each segment is a portion of the stripe that resides on a single storage disk in the disk array. A memory manager is provided to manage memory allocation for storing user data redundantly according to parity redundancy techniques. The memory manager maintains a partial stripe pointer to reference individual stripes in the disk array and a segment fill pointer to references individual segments in the referenced stripe. These pointers are used to select a non-filled stripe and individual segments in that stripe. The memory manager writes user data to a selected segment and incrementally determines a parity value for the stripe after each segment is written. The parity value is based upon the user data contained in those segments of the stripe that have been written. The empty segments in the stripe are not managed during the write process and thus are not included in the incremental parity generation.
摘要翻译：数据存储系统具有具有多个存储盘的磁盘阵列和耦合到磁盘阵列的磁盘阵列控制器，以协调与存储磁盘的数据传输。磁盘阵列配置为多个条带，其中每个条带跨越多个存储磁盘。此外，每个条带由多个存储空间段组成，其中每个段是驻留在磁盘阵列中的单个存储磁盘上的条带的一部分。提供存储器管理器来管理用于根据奇偶冗余技术冗余地存储用户数据的存储器分配。内存管理器维护一个部分条带指针来引用磁盘阵列中的各个条带，以及一个段填充指针，以引用引用的条带中的各个段。这些指针用于选择该条带中未填充的条带和各个段。存储器管理器将用户数据写入所选择的段，并且在每个段被写入之后递增地确定条带的奇偶校验值。奇偶校验值基于包含在已经写入的条带的那些段中的用户数据。在写入过程中，条带中的空段不被管理，因此不包括在增量奇偶校验生成中。

24. 发明授权

US09596301B2 Distributed-leader-election service for a distributed computer system 有权
标题翻译：分布式计算机系统的分布式领导选举服务
公开(公告)号：US09596301B2
公开(公告)日：2017-03-14
申请号：US11523442
申请日：2006-09-18
申请人： Timothy J. Mosier , Douglas L. Voigt , Michael E. Lutz
发明人： Timothy J. Mosier , Douglas L. Voigt , Michael E. Lutz
IPC分类号： G06F15/16 , H04L29/08
CPC分类号： H04L67/1095 , H04L67/34
摘要： Embodiments of the present invention provide methods and systems for leadership allocation in a distributed computer system. In certain embodiments of the present invention, a leader-election-service process runs within each node of a distributed computer system, together cooperatively providing a distributed-leader-election service. The distributed-leader-election service employs a distributed consensus service to manage distributed state information related to roles and leadership allocation within a distributed computer system. Client processes within each node interface with the leader-election-service process of the node in order to assume leadership of particular roles within the distributed computer system. Leadership-allocation management is thus centralized, within each node. In alternative embodiments, the distributed-leader-election service may be implemented as a collection of library routines that run in the context of client processes.
摘要翻译：本发明的实施例提供了在分布式计算机系统中用于领导分配的方法和系统。在本发明的某些实施例中，领导选举服务过程在分布式计算机系统的每个节点内运行，共同协作地提供分布式领导选举服务。分布式领导选举服务采用分布式共享服务来管理分布式计算机系统中与角色和领导分配相关的分布式状态信息。每个节点接口中的客户端进程与节点的领导选举服务进程一起承担领导分布式计算机系统内的特定角色。因此，领导力分配管理集中在每个节点内。在替代实施例中，分布式领导选举服务可以被实现为在客户端进程的上下文中运行的库例程的集合。

25. 发明申请

US20100082856A1 Managing Command Request Time-outs In QOS Priority Queues 有权
标题翻译：管理QOS优先级队列中的命令请求超时
公开(公告)号：US20100082856A1
公开(公告)日：2010-04-01
申请号：US12243874
申请日：2008-10-01
申请人： Christian A. Kimoto , Douglas L. Voigt
发明人： Christian A. Kimoto , Douglas L. Voigt
IPC分类号： G06F13/372
CPC分类号： H04L47/6215 , H04L47/10 , H04L49/90
摘要： In one embodiment a storage controller comprises a processor, a computer readable storage medium coupled to the processor, and logic instructions in the memory module which, when executed by the processor, configure the processor to receive, in a quality of service module, a first command request from a host initiator port, associate a time-out threshold with the first command request, determine, in the quality of service module, whether an available priority queue can release the first command request for execution by a scheduling module within the time-out threshold; and in response to a determination that an available priority queue can release the first command request for execution within the time-out threshold, assign the first command request to the available priority queue.
摘要翻译：在一个实施例中，存储控制器包括处理器，耦合到处理器的计算机可读存储介质和存储器模块中的逻辑指令，当由处理器执行时，逻辑指令将处理器配置为以服务质量模块接收第一从主机启动器端口发出命令请求，将超时阈值与第一命令请求相关联，在服务质量模块中确定可用优先级队列是否可以释放第一命令请求以供调度模块在时间段内执行，出门限并且响应于确定可用优先级队列可以释放在超时阈值内执行的第一命令请求以将第一命令请求分配给可用的优先级队列。

26. 发明授权

US07644308B2 Hierarchical timestamps 失效
标题翻译：分层时间戳
公开(公告)号：US07644308B2
公开(公告)日：2010-01-05
申请号：US11369681
申请日：2006-03-06
申请人： Douglas L. Voigt , James P. Jackson , Alistair Veitch , James M. Reuter
发明人： Douglas L. Voigt , James P. Jackson , Alistair Veitch , James M. Reuter
IPC分类号： G06F11/00
CPC分类号： G06F12/0253
摘要： Embodiments of the present invention are directed to digitally encoded hierarchical timestamps that are stored in computer readable mediums. The hierarchical timestamps of the present invention include a first field that stores a timestamp value and a second field that stores a processing-level indication that indicates the scope of the timestamp within a hierarchical processing system.
摘要翻译：本发明的实施例涉及存储在计算机可读介质中的数字编码分层时间戳。本发明的分级时间戳包括存储时间戳值的第一字段和存储指示分层处理系统内的时间戳范围的处理级指示的第二字段。

27. 发明授权

US06898664B2 Optimizing performance for a storage device within a computer system 有权
标题翻译：优化计算机系统内存储设备的性能
公开(公告)号：US06898664B2
公开(公告)日：2005-05-24
申请号：US10233107
申请日：2002-08-28
申请人： Randy J. Matthews , Marc E. LeFevre , Richelle L. Ahlvers , Wade A. Dolphin , Douglas L. Voigt
发明人： Randy J. Matthews , Marc E. LeFevre , Richelle L. Ahlvers , Wade A. Dolphin , Douglas L. Voigt
IPC分类号： G06F3/06 , G06F12/00
CPC分类号： G06F3/0613 , G06F3/0656 , G06F3/0689
摘要： A data storage device may be constructed with a disk array; an array controller for controlling the array; and a queue for queuing commands from a host system to the disk array. Programming installed on the array controller adjusts a logical size of the queue to optimize performance.
摘要翻译：数据存储装置可以用磁盘阵列构成; 用于控制阵列的阵列控制器; 以及将主机系统的命令排队到磁盘阵列的队列。阵列控制器上安装的编程器调整队列的逻辑大小以优化性能。

28. 发明授权

US5596710A Method for managing roll forward and roll back logs of a transaction object 失效
标题翻译：管理事务对象的前滚和后退日志的方法
公开(公告)号：US5596710A
公开(公告)日：1997-01-21
申请号：US329558
申请日：1994-10-25
申请人： Douglas L. Voigt
发明人： Douglas L. Voigt
IPC分类号： G06F1/30 , G06F3/06 , G06F11/14 , G06F11/34
CPC分类号： G06F11/1474
摘要： A method is provided for operating on a transaction object in a controller, such as a disk array controller. The transaction object maintains a roll forward log which holds action items to be performed, and a roll back log which lists action items already performed. In the event of power failure, the controller might be in the midst of a complex operation involving many action items. When power is restored, the controller determines whether to complete the operation using the roll forward log, or undo the operation using the roll back log. The method includes a simplified sequence, keyed to a single instruction of clearing the roll back log, which effectively makes this determination and thereby renders atomic the entire operation with respect to power failure.
摘要翻译：提供了一种用于对诸如磁盘阵列控制器的控制器中的事务对象进行操作的方法。事务对象维护保存要执行的操作项的前滚日志，以及列出已执行的操作项的回滚日志。在电源故障的情况下，控制器可能处于涉及许多操作项目的复杂操作中。当电源恢复时，控制器确定是否使用前滚日志完成操作，或者使用回滚日志撤消操作。该方法包括一个简化的序列，其键入清除回滚日志的单个指令，这有效地使得该确定从而使关于电源故障的整个操作成为原子。

29. 发明申请

US20140316539A1 DRIVERS AND CONTROLLERS 审中-公开
标题翻译：驱动和控制器
公开(公告)号：US20140316539A1
公开(公告)日：2014-10-23
申请号：US14356598
申请日：2012-01-31
申请人： Raju C. Bopardikar , Douglas L. Voigt , Dwight L. Barron , Paul L. Perez
发明人： Raju C. Bopardikar , Douglas L. Voigt , Dwight L. Barron , Paul L. Perez
IPC分类号： G05B15/02
CPC分类号： G05B15/02 , G06F9/4411 , G06F11/2092 , G06F13/102 , G06F13/385 , G06F2213/3802
摘要： Disclosed herein is a technique to transfer at least one unfinished operation from one controller to a second controller, if the first controller has ceased.
摘要翻译：本文公开了一种如果第一控制器已经停止，则将至少一个未完成的操作从一个控制器传送到第二控制器的技术。

30. 发明申请

US20140032507A1 DE-DUPLICATION USING A PARTIAL DIGEST TABLE 审中-公开
标题翻译：使用部分数据表进行去重现
公开(公告)号：US20140032507A1
公开(公告)日：2014-01-30
申请号：US13558388
申请日：2012-07-26
申请人： Douglas L. Voigt , Siamak Nazari
发明人： Douglas L. Voigt , Siamak Nazari
IPC分类号： G06F7/00 , G06F17/30
CPC分类号： G06F3/067 , G06F3/0608 , G06F3/0641
摘要： Data de-duplication is done on a data set. The data de-duplication is done using a partial digest table. Some digests are selective removed from the partial digest table when a pre-determined condition occurs.
摘要翻译：数据重复数据删除是在数据集上完成的。数据重复数据删除是使用部分摘要表完成的。当预先确定的条件发生时，一些摘要从部分摘要表中选择性地去除。

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