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公开(公告)号：US08140622B2
公开(公告)日：2012-03-20
申请号：US10154009
申请日：2002-05-23
CPC分类号： G06F17/30171
摘要： A method for data access in a multinode, shared storage data processing environment is provided by enhancing the file locking mechanism structure so as to permit nodes not normally designated as metadata controller nodes to fulfill that function for limited times thus at least temporarily eliminating the need for continual node-to-node coordination. This is particularly advantageous in the access and transfer of large files such as video files or files containing complex visualization data.
摘要翻译： 通过增强文件锁定机制结构来提供在多节点共享存储数据处理环境中的数据访问的方法，以允许通常不被指定为元数据控制器节点的节点在有限的时间内实现该功能，因此至少暂时不需要 连续的节点到节点的协调。 这在访问和传输诸如视频文件或包含复杂可视化数据的文件的大文件中是特别有利的。
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公开(公告)号：US07010528B2
公开(公告)日：2006-03-07
申请号：US10154290
申请日：2002-05-23
IPC分类号： G06F17/30
CPC分类号： G06F17/30067 , Y10S707/99938 , Y10S707/99953
摘要： The present invention is directed to a method for controlling file access in a multinode, shared storage, data processing system in which a one set of nodes is capable of acting as metadata controllers and a second set of nodes are tuned for running user applications. By providing two kinds of locks operative at the file level of granularity, a mechanism is produced which permits application programs to also run on their set of metadata controller nodes. One of the locks permits read and write access to existing data blocks but precludes operations such as file deletion or file truncation. The other lock is of lower authority and permits metadata controller nodes, which can provide time limited permissions to the application nodes, to withhold locks which authorize access when requests for access are made from application nodes.
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3.发明授权Program support for disk fencing in a shared disk parallel file system across storage area network 失效程序支持跨存储区域网络的共享磁盘并行文件系统中的磁盘防护公开(公告)号：US06708175B2
公开(公告)日：2004-03-16
申请号：US09875099
申请日：2001-06-06
IPC分类号： G06F1730
CPC分类号： G06F3/0622 , G06F3/0637 , G06F3/067 , G06F11/1425 , G06F11/1471 , H04L67/1097 , Y10S707/99931 , Y10S707/99932 , Y10S707/99939
摘要： A method is provided for limiting access to disks and files in the event of a system partitioning occurring as the result of a node failure in a data distributed processing system in which files are shared amongst a plurality of independently running nodes. The nodes in the system are provided with limited duration leases which permit data access and which have to be periodically renewed. Each partition is also associated with a quorum which is also a necessary element in providing access at proper times. The lease and quorum concepts work together to insure that recovery operations do not occur until recovery is possible. The lease concept thus is also seen as further operating in close cooperation with the quorum concept to prevent long delays in the recovery process that could otherwise occur.
摘要翻译： 在多个独立运行的节点之间共享文件的数据分布式处理系统中，在系统分区发生作为节点故障的结果的情况下，限制对磁盘和文件的访问的方法。 系统中的节点被提供有限的持续时间租赁，允许数据访问并且必须定期更新。 每个分区也与法定人数相关联，法定人数也是在适当时候提供访问的必要元素。 租赁和法定人数概念共同合作，确保恢复操作不会发生，直到恢复可能。 因此，租赁概念也被视为与法定人数概念密切合作的进一步运作，以防止可能发生的恢复过程的长期拖延。
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4.发明授权Support for single-node quorum in a two-node nodeset for a shared disk parallel file system 失效支持共享磁盘并行文件系统的双节点节点中的单节点仲裁公开(公告)号：US06915391B2
公开(公告)日：2005-07-05
申请号：US09737393
申请日：2000-12-15
CPC分类号： G06F17/30067 , G06F11/1425
摘要： A method is provided for continuing node operations in quorum-based protocols. This is particularly valuable in the situation in which a group of nodes includes only two nodes and in which communications to a node is lost. Provision is made for adding additional status indications to each node indicating whether or not it is enabled for single-node quorum operation. Provision is also made for identifying one node as a primary node and another node as a secondary node for time-out response purposes.
摘要翻译： 提供了一种用于在基于法定人数的协议中持续节点操作的方法。 这在一组节点仅包括两个节点并且与节点的通信丢失的情况下特别有价值。 提供了为每个节点添加附加状态指示，指示是否启用单节点仲裁操作。 还提供了将一个节点标识为主节点，另一个节点作为辅助节点进行超时响应的目的。
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5.发明授权Defragmentation utility for a shared disk parallel file system across a storage area network 有权跨存储区域网络的共享磁盘并行文件系统的碎片整理实用程序公开(公告)号：US06571261B1
公开(公告)日：2003-05-27
申请号：US09616012
申请日：2000-07-13
IPC分类号： G06F1730
CPC分类号： G06F17/30135 , G06F3/0601 , G06F2003/0697 , G11B20/1217 , Y10S707/99942 , Y10S707/99957
摘要： This invention provides a defragmentation utility that works on-line in parallel with other file system activities. Thus, it avoids making the file system unavailable for periods of time which would, if not for this invention, slow down data communication exchange and the execution of other tasks dependent upon the data. In particular, this invention, steps through all of the valid inodes finding each of the fragments. The defragmentation engine decides which fragments must remain in their current location and which fragments should migrate to another disk block sub-block location. Since the data blocks span across multiple disks, for each valid disk of the file system a set of disk blocks are constructed that are chosen to be filled, herein called plates. When the plates become full or reach a certain fullness, they are removed from the set and replaced by other disk blocks. When a disk block is removed from the plate set, it is moved to a “done” list as it is considered “full”. While a disk block is in the done list the fragments that belong to that block are not allowed to migrate. Thus, a defragmentation utility that works on-line, avoids locking data structures for long periods of time, is memory efficient, uses sub-blocks for fragment analysis and migration as well as minimizes data movements has been summarized. This utility thereby provides a transparent defragmentation function that operates in the background seamlessly with other system file operations.
摘要翻译： 本发明提供了与其他文件系统活动并行工作的碎片整理实用程序。 因此，它避免使文件系统不可用的时间段，如果不是本发明，则减慢数据通信交换和依赖于数据的其他任务的执行。 特别地，本发明通过查找每个片段的所有有效索引节点。 碎片整理引擎决定哪些片段必须保留在其当前位置，哪些片段应迁移到另一个磁盘块子块位置。 由于数据块跨越多个磁盘，对于文件系统的每个有效磁盘，构造一组选择要填充的磁盘块，这里称为“板”。 当板变满或达到一定的丰满度时，将它们从组中移除并被其他磁盘块替换。 当磁盘块从板组中移除时，它被移动到“完成”列表，因为它被认为是“已满”。 当磁盘块位于完成列表中时，不允许迁移属于该块的片段。 因此，在线工作的碎片整理工具避免长时间锁定数据结构，是高效的内存，使用子块进行片段分析和迁移，并最大限度地减少数据移动。 因此，此实用程序提供透明的碎片整理功能，可在后台与其他系统文件操作无缝操作。
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6.发明授权公开(公告)号：US07840995B2
公开(公告)日：2010-11-23
申请号：US12260557
申请日：2008-10-29
申请人： Robert J. Curran , Roger L. Haskin
发明人： Robert J. Curran , Roger L. Haskin
CPC分类号： H04L63/10
摘要： A storage gateway is employed as part of a security enhancing protocol in a data processing system which includes at least one metadata controller node and at least one application node which is granted a time limited access to files in a shared storage system. The gateway is provided with information as to data blocks to which access is to be allowed and also with information concerning the duration of special access granted to a requesting application node. This insures that metadata cannot be improperly used, changed or corrupted by users operating on an application node.
摘要翻译： 存储网关被用作数据处理系统中的安全增强协议的一部分，数据处理系统包括至少一个元数据控制器节点和授予对共享存储系统中的文件的时间限制访问的至少一个应用节点。 向网关提供关于允许访问的数据块的信息，并且还提供关于授权给请求应用节点的特殊访问的持续时间的信息。 这确保了在应用程序节点上操作的用户不能不正确地使用，更改或损坏元数据。
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7.发明授权公开(公告)号：US07448077B2
公开(公告)日：2008-11-04
申请号：US10154323
申请日：2002-05-23
申请人： Robert J. Curran , Roger L. Haskin
发明人： Robert J. Curran , Roger L. Haskin
CPC分类号： H04L63/10
摘要： A storage gateway is employed as part of a security enhancing protocol in a data processing system which includes at least one metadata controller node and at least one application node which is granted a time limited access to files in a shared storage system. The gateway is provided with information as to data blocks to which access is to be allowed and also with information concerning the duration of special access granted to a requesting application node. This insures that metadata cannot be improperly used, changed or corrupted by users operating on an application node.
摘要翻译： 存储网关被用作数据处理系统中的安全增强协议的一部分，数据处理系统包括至少一个元数据控制器节点和授予对共享存储系统中的文件的时间限制访问的至少一个应用节点。 向网关提供关于允许访问的数据块的信息，并且还提供关于授权给请求应用节点的特殊访问的持续时间的信息。 这确保了在应用程序节点上操作的用户不能不正确地使用，更改或损坏元数据。
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8.发明申请公开(公告)号：US20090119767A1
公开(公告)日：2009-05-07
申请号：US12260557
申请日：2008-10-29
申请人： Robert J. Curran , Roger L. Haskin
发明人： Robert J. Curran , Roger L. Haskin
CPC分类号： H04L63/10
摘要： A storage gateway is employed as part of a security enhancing protocol in a data processing system which includes at least one metadata controller node and at least one application node which is granted a time limited access to files in a shared storage system. The gateway is provided with information as to data blocks to which access is to be allowed and also with information concerning the duration of special access granted to a requesting application node. This insures that metadata cannot be improperly used, changed or corrupted by users operating on an application node.
摘要翻译： 存储网关被用作数据处理系统中的安全增强协议的一部分，数据处理系统包括至少一个元数据控制器节点和授予对共享存储系统中的文件的时间限制访问的至少一个应用节点。 向网关提供关于允许访问的数据块的信息，并且还提供关于授权给请求应用节点的特殊访问的持续时间的信息。 这确保了在应用程序节点上操作的用户不能不正确地使用，更改或损坏元数据。
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公开(公告)号：US07234077B2
公开(公告)日：2007-06-19
申请号：US10602157
申请日：2003-06-24
IPC分类号： G06F11/00
CPC分类号： G06F11/1435 , G06F11/1469 , Y10S707/99953
摘要： File system restoration is made more flexible through the use of indicators of individual file restoration status throughout the restoration process. Such indicators are particularly useful in the restoration of large file systems where, for example, the number of files may range upwards of several hundred million. Since file system restoration for large systems takes such a relatively long time, the present invention provides various degrees of individual file access even as the restoration process is being carried out. During file system restoration times, file access may be full or limited to a file's attributes. Most advantageously, the present invention is capable of providing full, dynamically driven (on-demand) file access even during file system restoration operations.
摘要翻译： 通过在整个恢复过程中使用单个文件恢复状态的指示器，使文件系统恢复更加灵活。 这样的指示器在恢复大型文件系统中特别有用，例如文件数量可能在几亿以上。 由于大型系统的文件系统恢复需要相当长的时间，所以即使正在执行恢复处理，本发明也提供了各种文件访问的程度。 在文件系统恢复时间内，文件访问可能已满或限于文件的属性。 最有利的是，即使在文件系统恢复操作期间，本发明也能够提供完全的动态驱动（按需）文件访问。
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公开(公告)号：US5956734A
公开(公告)日：1999-09-21
申请号：US890780
申请日：1997-07-11
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。
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