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1. 发明授权

US5761417A Video data streamer having scheduler for scheduling read request for individual data buffers associated with output ports of communication node to one storage node 失效
公开(公告)号：US5761417A
公开(公告)日：1998-06-02
申请号：US302626
申请日：1994-09-08
申请人： Martha R. Henley , James Christopher Wyllie , Ashok Raj Saxena
发明人： Martha R. Henley , James Christopher Wyllie , Ashok Raj Saxena
IPC分类号： H04N5/93 , G06F3/06 , G06F12/00 , H04L29/06 , H04N5/765 , H04N7/16 , H04N7/173 , H04N21/2183 , H04N21/238 , H04N21/262 , G06F13/00
CPC分类号： G06F3/061 , G06F3/0656 , G06F3/0659 , G06F3/0689 , H04L29/06
摘要： A media streamer (10) includes at least one storage node (16, 17) comprising mass storage for storing a digital representation of at least one video presentation; and a plurality of communication nodes (14) each having at least one input port that is coupled to an output of the at least one storage node for receiving a digital representation of a video presentation therefrom. Each of the plurality of communication nodes further includes a plurality of output ports, individual ones of the plurality of output ports being operable for transmitting a digital representation as a data stream to a consumer of the digital representation. Individual ones of the output ports also have an associated data buffer for buffering a portion of a digital representation prior to a transmission of the digital representation. Each of the plurality of communication nodes further includes a scheduler for scheduling, for individual ones of the data buffers, a read request to the at least one storage node for a next sequential portion of the digital representation for storage within individual ones of the data buffers. Each read request for a particular individual one of the data buffers is scheduled at a predetermined time such that a requested next sequential portion of the digital representation is available to a requesting communications node prior to a time that the requested next sequential portion is required to be transmitted from the output port that is associated with the data buffer for which the read request was scheduled. The at least one storage node further includes a scheduler for scheduling a read request to the mass storage such that a next sequential portion of a digital representation is available for outputting, prior to the at least one storage node receiving a read request for the next sequential portion from one of the communication nodes.

2. 发明授权

US5940838A Parallel file system and method anticipating cache usage patterns 失效
标题翻译：并行文件系统和方法预测缓存使用模式
公开(公告)号：US5940838A
公开(公告)日：1999-08-17
申请号：US893733
申请日：1997-07-11
申请人： Frank B. Schmuck , James Christopher Wyllie , Zvi Yosef Yehudai , Benjamin Mandler
发明人： Frank B. Schmuck , James Christopher Wyllie , Zvi Yosef Yehudai , Benjamin Mandler
IPC分类号： G06F12/08 , G06F12/02
CPC分类号： G06F12/0862 , G06F12/0866 , G06F2212/6026
摘要： A computer system having a shared disk file system running on on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Methods are provided for use as a parallel file system in a shared disk environment by use of a scalable directory service for the system with a stable cursor, a segmented allocation map. Dynamic prefetch and cached balance pools for multiple accesses improve the system. Extended file attributes are used for implementation of Access Control Lists in a parallel file system. Improvements to caching and cache performance developments balance pools for multiple accesses. A metadata node manages file metadata for parallel read and write actions. For our system, tokens are used for metadata node selection and identification, and we have enhanced token modes for controlling file size, as well as smart caching of byte range tokens using file access patterns and a byte range lock algorithm using a byte range token interface. Locking techniques reduce the overhead of a token manager which is also used in the file system recovery if a computer participating in the management of shared disks becomes unavailable or failed.
摘要翻译：一种计算机系统，其具有在多个计算机上运行的共享磁盘文件系统，每个计算机具有其自己的操作系统实例，并被耦合用于对驻留在网络附加共享磁盘上的文件进行并行数据共享访问。通过使用具有稳定光标的系统的可扩展目录服务（分段分配映射），提供方法用作共享磁盘环境中的并行文件系统。用于多个访问的动态预取和缓存平衡池可改善系统。扩展文件属性用于在并行文件系统中实现访问控制列表。缓存和缓存性能开发的改进平衡了多个访问的池。元数据节点管理用于并行读写操作的文件元数据。对于我们的系统，令牌用于元数据节点选择和识别，并且我们具有增强的令牌模式来控制文件大小，以及使用文件访问模式的智能缓存字节范围令牌和使用字节范围令牌接口的字节范围锁定算法。如果参与共享磁盘管理的计算机变得不可用或失败，锁定技术可以减少令牌管理器的开销，这也是在文件系统恢复中使用的。

3. 发明授权

US5956734A Parallel file system with a quota check utility 失效
标题翻译：具有配额检查功能的并行文件系统
公开(公告)号：US5956734A
公开(公告)日：1999-09-21
申请号：US890780
申请日：1997-07-11
申请人： Frank B. Schmuck , Robert J. Curran , James Christopher Wyllie , Sibylle Schaller
发明人： Frank B. Schmuck , Robert J. Curran , James Christopher Wyllie , Sibylle Schaller
IPC分类号： G06F17/30
CPC分类号： G06F17/30224 , Y10S707/99938 , Y10S707/99953 , Y10S707/99956
摘要： A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Methods are provided for use as a parallel file system in a shared disk environment by use of a scaleable directory service for the system with a stable cursor, and a segmented allocation map. Dynamic prefetch and cached balance pools for multiple accesses improve the system. Extended file attributes are used for implementation of Access Control Lists in a parallel file system. A metadata node manages file metadata for parallel read and write actions. For our system, tokens are used for metadata node selection and identification. We have provided recoverable local shares for quota Management. A quota server and a quota client are provided for each file system, and a quotacheck utility allows parallel environments with minimal interference to other applications which require the use of quotas.
摘要翻译：一种计算机系统，具有在多个计算机上运行的共享磁盘文件系统，每个计算机具有其自己的操作系统实例，并被耦合用于对驻留在网络附加共享磁盘上的文件进行并行数据共享访问。通过使用具有稳定光标的系统的可扩展目录服务和分段分配映射来提供在共享磁盘环境中用作并行文件系统的方法。用于多个访问的动态预取和缓存平衡池可改善系统。扩展文件属性用于在并行文件系统中实现访问控制列表。元数据节点管理用于并行读写操作的文件元数据。对于我们的系统，令牌用于元数据节点的选择和识别。我们为配额管理提供了可回收的本地股份。为每个文件系统提供配额服务器和配额客户端，并且quotacheck实用程序允许对需要使用配额的其他应用程序的干扰最小的并行环境。

4. 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）。

5. 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）。

6. 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。

7. 发明授权

US5974424A Parallel file system and method with a metadata node 失效
标题翻译：具有元数据节点的并行文件系统和方法
公开(公告)号：US5974424A
公开(公告)日：1999-10-26
申请号：US893723
申请日：1997-07-11
申请人： Frank B. Schmuck , Robert Curran , James Christopher Wyllie , Boaz Shmueli
发明人： Frank B. Schmuck , Robert Curran , James Christopher Wyllie , Boaz Shmueli
IPC分类号： G06F17/30
CPC分类号： G06F17/30224 , Y10S707/99952
摘要： A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data disks. One of the computers serves as a metadata node and manages metadata for parallel read and write actions for a particular file. Metadata is transferred from and to this file from the other computers via this medadata node computer.
摘要翻译：一种计算机系统，具有在多个计算机上运行的共享磁盘文件系统，每个计算机具有其自己的操作系统实例并被耦合用于并行数据磁盘。其中一台计算机用作元数据节点，并管理用于特定文件的并行读取和写入动作的元数据。元数据从其他计算机通过该媒体数据节点计算机传输到此文件。

8. 发明授权

US6023706A Parallel file system and method for multiple node file access 失效
标题翻译：用于多节点文件访问的并行文件系统和方法
公开(公告)号：US6023706A
公开(公告)日：2000-02-08
申请号：US893865
申请日：1997-07-11
申请人： Frank B. Schmuck , Daniel Lloyd McNabb , James Christopher Wyllie , Boaz Shmueli
发明人： Frank B. Schmuck , Daniel Lloyd McNabb , James Christopher Wyllie , Boaz Shmueli
IPC分类号： G06F17/30 , G06F13/00
CPC分类号： G06F17/30224
摘要： A computer system having a shared disk file system running on on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Methods are provided for use as a parallel file system in a shared disk environment by use of a scalable directory service for the system with a stable cursor, a segmented allocation map. Dynamic prefetch and cached balance pools for multiple accesses improve the system. Extended file attributes are used for implementation of Access Control Lists in a parallel file system. Improvements to caching and cache performance developments balance pools for multiple accesses. A metadata node manages file metadata for parallel read and write actions. For our system, tokens are used for metadata node selection and identification, and we have enhanced token modes for controlling file size, as well as smart caching of byte range tokens using file access patterns and a byte range lock algorithm using a byte range token interface. Locking techniques reduce the overhead of a token manager which is also used in the file system recovery if a computer participating in the management of shared disks becomes unavailable or failed.
摘要翻译：一种计算机系统，其具有在多个计算机上运行的共享磁盘文件系统，每个计算机具有其自己的操作系统实例，并被耦合用于对驻留在网络附加共享磁盘上的文件进行并行数据共享访问。通过使用具有稳定光标的系统的可扩展目录服务（分段分配映射），提供方法用作共享磁盘环境中的并行文件系统。用于多个访问的动态预取和缓存平衡池可改善系统。扩展文件属性用于在并行文件系统中实现访问控制列表。缓存和缓存性能开发的改进平衡了多个访问的池。元数据节点管理用于并行读写操作的文件元数据。对于我们的系统，令牌用于元数据节点选择和识别，并且我们具有增强的令牌模式来控制文件大小，以及使用文件访问模式的智能缓存字节范围令牌和使用字节范围令牌接口的字节范围锁定算法。如果参与共享磁盘管理的计算机变得不可用或失败，锁定技术可以减少令牌管理器的开销，这也是在文件系统恢复中使用的。

9. 发明授权

US5999976A Parallel file system and method with byte range API locking 失效
标题翻译：并行文件系统和方法与字节范围API锁定
公开(公告)号：US5999976A
公开(公告)日：1999-12-07
申请号：US893633
申请日：1997-07-11
申请人： Frank B. Schmuck , Boaz Shmueli , James Christopher Wyllie , Anthony J. Zlotek , William A. Kish
发明人： Frank B. Schmuck , Boaz Shmueli , James Christopher Wyllie , Anthony J. Zlotek , William A. Kish
IPC分类号： G06F9/46 , G06F17/30 , G06F15/163 , G06F13/14
CPC分类号： G06F9/526 , G06F17/30224 , G06F2209/522 , Y10S707/99938
摘要： A computer system having a shared disk file system running on multiple computers each having their own instance of an operating system and being coupled for parallel data sharing access to files residing on network attached shared disks. Access to a file by a processor node is controlled by tokens transferred to the node from a token manager. To prevent another processor node from removing a token after the token has been received, but before it performs the operation on the file, each process can lock the token after it has been received. A node with a token can lock a byte range of a file, which byte range may include all or only some of byte range cornered by the token.
摘要翻译：一种计算机系统，具有在多个计算机上运行的共享磁盘文件系统，每个计算机具有其自己的操作系统实例，并被耦合用于对驻留在网络附加共享磁盘上的文件进行并行数据共享访问。由处理器节点访问文件由从令牌管理器传送到节点的令牌来控制。为了防止另一个处理器节点在接收到令牌之后删除令牌，但在执行文件操作之前，每个进程都可以在接收到令牌之后锁定令牌。具有令牌的节点可以锁定文件的字节范围，哪个字节范围可以包括令牌所覆盖的所有或仅一些字节范围。

10. 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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