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11. 发明授权

US08677063B2 Parity declustered storage device array with partition groups 失效
标题翻译：奇偶校验分簇存储设备阵列
公开(公告)号：US08677063B2
公开(公告)日：2014-03-18
申请号：US12847798
申请日：2010-07-30
申请人： Ralph A Becker-Szendy , Veera Deenadhayalan , D. Scott Guthridge , James Christopher Wyllie
发明人： Ralph A Becker-Szendy , Veera Deenadhayalan , D. Scott Guthridge , James Christopher Wyllie
IPC分类号： G06F12/00
CPC分类号： G06F11/1076
摘要： This disclosure relates to parity declustered storage device arrays having partition groups. In an exemplary embodiment, the storage system includes a storage device array, such as disk array. Each storage device is divided into partitions. Each partition includes stripe units, such as hundreds or thousands of stripe units in exemplary embodiments. The storage system also includes a physical array controller coupled to the storage device array. In an exemplary embodiment, the array controller includes a partition group lookup table and stores and retrieves data and parity in the storage devices based on the partition group lookup table. In this exemplary embodiment, the array controller also includes a stripe lookup table and/or a log. In an exemplary embodiment, the partition group lookup table and the stripe lookup table take up less memory (e.g., by an order of magnitude) than a single-level stripe map conveying the same information.
摘要翻译：本公开涉及具有分区组的奇偶校验解聚存储设备阵列。在示例性实施例中，存储系统包括诸如磁盘阵列的存储设备阵列。每个存储设备分为几个分区。在示例性实施例中，每个分区包括条带单元，例如数百或数千个条带单元。存储系统还包括耦合到存储设备阵列的物理阵列控制器。在示例性实施例中，阵列控制器包括分区组查找表，并且基于分区组查找表来存储和检索存储设备中的数据和奇偶校验。在该示例性实施例中，阵列控制器还包括条带查找表和/或日志。在示例性实施例中，分区组查找表和条带查找表占用比传送相同信息的单级条带图更少的存储器（例如，一个数量级）。

12. 发明申请

US20120030425A1 PARITY DECLUSTERED STORAGE DEVICE ARRAY WITH PARTITION GROUPS 失效
标题翻译： PARITY DECLUSTER存储设备阵列与分组
公开(公告)号：US20120030425A1
公开(公告)日：2012-02-02
申请号：US12847798
申请日：2010-07-30
申请人： Ralph A. Becker-Szendy , Veera Deenadhayalan , D. Scott Guthridge , James Christopher Wyllie
发明人： Ralph A. Becker-Szendy , Veera Deenadhayalan , D. Scott Guthridge , James Christopher Wyllie
IPC分类号： G06F12/00
CPC分类号： G06F11/1076
摘要： This disclosure relates to parity declustered storage device arrays having partition groups. In an exemplary embodiment, the storage system includes a storage device array, such as disk array. Each storage device is divided into partitions. Each partition includes stripe units, such as hundreds or thousands of stripe units in exemplary embodiments. The storage system also includes a physical array controller coupled to the storage device array. In an exemplary embodiment, the array controller includes a partition group lookup table and stores and retrieves data and parity in the storage devices based on the partition group lookup table. In this exemplary embodiment, the array controller also includes a stripe lookup table and/or a log. In an exemplary embodiment, the partition group lookup table and the stripe lookup table take up less memory (e.g., by an order of magnitude) than a single-level stripe map conveying the same information.
摘要翻译：本公开涉及具有分区组的奇偶校验解聚存储设备阵列。在示例性实施例中，存储系统包括诸如磁盘阵列的存储设备阵列。每个存储设备分为几个分区。在示例性实施例中，每个分区包括条带单元，例如数百或数千个条带单元。存储系统还包括耦合到存储设备阵列的物理阵列控制器。在示例性实施例中，阵列控制器包括分区组查找表，并且基于分区组查找表来存储和检索存储设备中的数据和奇偶校验。在该示例性实施例中，阵列控制器还包括条带查找表和/或日志。在示例性实施例中，分区组查找表和条带查找表占用比传送相同信息的单级条带图更少的存储器（例如，一个数量级）。

13. 发明授权

US06820122B1 Maintenance of free resource information in a distributed system 失效
标题翻译：在分布式系统中维护可用资源信息
公开(公告)号：US06820122B1
公开(公告)日：2004-11-16
申请号：US09480446
申请日：2000-01-10
申请人： Benjamin Mandler , Roger Lee Haskin , Frank Bernhard Schmuck , James Christopher Wyllie
发明人： Benjamin Mandler , Roger Lee Haskin , Frank Bernhard Schmuck , James Christopher Wyllie
IPC分类号： G08F900
CPC分类号： G06F9/52 , G06F17/30224 , Y10S707/99953 , Y10S707/99956
摘要： A method for managing a shared resource that is allocated among nodes in a distributed computing system includes receiving periodic reports from the nodes regarding their respective allocations of the resource. Responsive to the periodic reports, an approximate amount of the resource that is free for further allocation is determined. Typically, the shared resource is a data storage resource, such as a plurality of disks linked to the nodes by a network, which disks are commonly accessible to multiple ones of the nodes.
摘要翻译：一种用于管理在分布式计算系统中的节点之间分配的共享资源的方法包括：从节点接收有关资源的各自分配的周期性报告。响应于定期报告，确定了大量可用于进一步分配的资源。通常，共享资源是诸如由网络链接到节点的多个磁盘的数据存储资源，哪些磁盘通常可被多个节点访问。

14. 发明授权

US5931925A System and method for efficiently transferring datastreams in a multimedia system 失效
标题翻译：在多媒体系统中有效传输数据流的系统和方法
公开(公告)号：US5931925A
公开(公告)日：1999-08-03
申请号：US755866
申请日：1996-12-02
申请人： Daniel Lloyd McNabb , Scott Lyon Porter , James Christopher Wyllie
发明人： Daniel Lloyd McNabb , Scott Lyon Porter , James Christopher Wyllie
IPC分类号： G06F13/00 , H04L29/06 , H04N7/173 , G06F13/28
CPC分类号： H04N7/17336 , H04L69/12
摘要： A multimedia datastreaming system includes one of a plurality of differing pre-existing file systems each supporting a set of zero copy function interfaces. A method is provided for supporting the zero copy function of a datastream file with the pre-existing file system. A general purpose file system interface is established to the pre-existing file systems. The general purpose file system interface is then invoked to affect zero copy transfer of the datastream from a producer module to a consumer module. An initial prefetch of data associated with the datastream file is initiated in response to an I/O command issued from a multimedia file system daemon, such prefetch being from mass storage to a buffer in shared memory in an interrupt context.
摘要翻译：多媒体数据流系统包括多个不同的预先存在的文件系统之一，每个文件系统支持一组零拷贝功能接口。提供了一种用于支持具有预先存在的文件系统的数据流文件的零拷贝功能的方法。为预先存在的文件系统建立通用文件系统接口。然后调用通用文件系统接口以影响数据流从生产者模块到消费者模块的零拷贝传输。响应于从多媒体文件系统守护程序发出的I / O命令，启动与数据流文件相关联的数据的初始预取，这种预取从中断上下文中的大容量存储到共享存储器中的缓冲器。

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