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1. 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。

2. 发明授权

US5946686A Parallel file system and method with quota allocation 失效
标题翻译：并行文件系统和方法配额配额
公开(公告)号：US5946686A
公开(公告)日：1999-08-31
申请号：US891641
申请日：1997-07-11
申请人： Frank B. Schmuck , James Christopher Wyllie , Robert J. Curran , Zvi Yosef Yehudai , Roger Lee Haskin , Sibylle Schaller
发明人： Frank B. Schmuck , James Christopher Wyllie , Robert J. Curran , Zvi Yosef Yehudai , Roger Lee Haskin , Sibylle Schaller
IPC分类号： G06F17/30 , G06F15/16
CPC分类号： G06F17/30224 , Y10S707/959
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. Synchronous and asynchronous takeover of a metadata node occurs for correction of metadata which was under modification and a new computer node to be a metadata node for that file. Locks are not constantly required to allocate new blocks on behalf of a user. 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，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。发生元数据节点的同步和异步接管，用于修正正在修改的元数据，并将新的计算机节点作为该文件的元数据节点。代表用户不需要锁定分配新的块。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。

3. 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。

4. 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。

5. 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。

6. 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。

7. 发明授权

US5963963A Parallel file system and buffer management arbitration 失效
标题翻译：并行文件系统和缓冲区管理仲裁
公开(公告)号：US5963963A
公开(公告)日：1999-10-05
申请号：US893722
申请日：1997-07-11
申请人： Frank B. Schmuck , Roger Lee Haskin , Daniel Lloyd McNabb , James Christopher Wyllie
发明人： Frank B. Schmuck , Roger Lee Haskin , Daniel Lloyd McNabb , James Christopher Wyllie
IPC分类号： G06F9/46 , G06F9/50 , G06F17/30
CPC分类号： G06F9/5016 , G06F17/30224 , G06F9/526 , G06F2209/522 , 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 scalable 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. 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 managing data for the same file distributed across multiple disk devices, a buffer manager is provided for a file system buffer pool which arbitrates use of memory resources among different system components competing for memory with buffer information for a component that said buffer manager needs for deciding how much memory to allocate among components of the system. The buffer information includes a desired memory size and current activity level. The buffer manager provides to a system component data as to how much memory has been assigned for use by that component of the system, and it schedules account resources to maximize file system throughput.
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伸缩目录服务和分段分配映射，提供了用于共享磁盘环境中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。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。为了管理分布在多个磁盘设备上的相同文件的数据，为文件系统缓冲池提供缓冲管理器，该文件系统缓冲池在不同的系统组件之间仲裁存储器资源的使用，这些组件与缓冲器管理器需要决定的组件的缓冲区信息进行比较在系统的组件之间分配多少内存。缓冲器信息包括期望的存储器大小和当前活动级别。缓冲区管理器向系统组件提供有关分配给系统的该组件使用的内存多少的数据，并且调度帐户资源以最大化文件系统吞吐量。

8. 发明授权

US5960446A Parallel file system and method with allocation map 失效
标题翻译：并行文件系统和方法与分配映射
公开(公告)号：US5960446A
公开(公告)日：1999-09-28
申请号：US893880
申请日：1997-07-11
申请人： Frank B. Schmuck , Roger Lee Haskin , Zvi Yosef Yehudai , James Christopher Wyllie
发明人： Frank B. Schmuck , Roger Lee Haskin , Zvi Yosef Yehudai , James Christopher Wyllie
IPC分类号： G06F17/30
CPC分类号： G06F17/30224 , Y10S707/99939 , Y10S707/99942 , Y10S707/99956
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. Improvement to caching and cache performance development 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。改进缓存和缓存性能开发平衡池的多个访问。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

US5893086A Parallel file system and method with extensible hashing 失效
标题翻译：并行文件系统和方法具有可扩展散列
公开(公告)号：US5893086A
公开(公告)日：1999-04-06
申请号：US893724
申请日：1997-07-11
申请人： Frank B. Schmuck , James Christopher Wyllie , Thomas E. Engelsiepen
发明人： Frank B. Schmuck , James Christopher Wyllie , Thomas E. Engelsiepen
IPC分类号： G06F11/14 , G06F17/30 , G06F17/00
CPC分类号： G06F17/30097 , G06F11/1435 , G06F17/30224 , Y10S707/99931 , Y10S707/99932
摘要： A computer system having a shared parallel disk file system running on a network for multiple computers each having their own instance of an operating system and with a protocol that makes disks appear to be locally attached to each file system. This parallel file system in a shared disk environment uses scalable directory service method improvements to caching and cache performance developments balance pools for multiple accesses. A metadata node manages file metadata, and 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. Synchronous and asynchronous takeover of a metadata node occurs for correction of metadata which was under modification and a new computer node to be a metadata node for that file. Locks are not constantly required to allocate new blocks on behalf of a user. Hash buckets are used and each hash bucket is stored in a sparse file at an offset given as i*s, where i is the hash bucket number and s is the hash bucket size, an where a directory starts out as an empty file, where the file size increases to the size where it needs to be split by inserting records, and wherein upon a split, an additional bucket is written increasing the file size from s to 2*s upon the first split. Lookup operations are performed with a step of computing the hash value of the key being looked up, as well as a hash tree depth as log-base-2 of the file size divided by hash bucket size, and with compute steps also computed for an insert operation.
摘要翻译：具有在多台计算机的网络上运行的共享并行盘文件系统的计算机系统，每个计算机具有其自己的操作系统实例和使得磁盘看起来本地连接到每个文件系统的协议。共享磁盘环境中的并行文件系统使用可扩展的目录服务方法来改进缓存和缓存性能开发平衡池，用于多个访问。元数据节点管理文件元数据，并且锁定技术减少了如果参与共享磁盘管理的计算机变得不可用或失败，也会在文件系统恢复中使用的令牌管理器的开销。发生元数据节点的同步和异步接管，用于修正正在修改的元数据，并将新的计算机节点作为该文件的元数据节点。代表用户不需要锁定分配新的块。使用哈希桶，每个哈希桶以一个以i * s给出的偏移量存储在稀疏文件中，其中i是哈希桶号，s是哈希桶大小，其中目录以空文件开头，其中文件大小通过插入记录而增加到需要分割的大小，并且其中在分割时，在第一次分割时将文件大小从s增加到2 * s。通过计算正在查找的密钥的哈希值以及散列树深度作为文件大小的log-2除以哈希桶大小的步骤来执行查找操作，并且还针对插入操作。

10. 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.

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