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1. 发明授权

US5859965A Method and apparatus for maintaining data consistency in raid 失效
公开(公告)号：US5859965A
公开(公告)日：1999-01-12
申请号：US767720
申请日：1996-12-17
申请人： Robert S. Gittins , Dale R. Passmore
发明人： Robert S. Gittins , Dale R. Passmore
IPC分类号： G06F11/10
CPC分类号： G06F11/1076
摘要： A method and apparatus for storing associated data in a computing system having two or more storage devices arranged in a RAID configuration. The storage devices have a prewrite area for pre-storage of the data, and data region for persistent storage of the data. A scoreboard memory structure is created for monitoring the state of the prewrite area, and data in the prewrite area is conditionally invalidated based upon the information contained in the scoreboard memory structure. By conditionally invalidating the prewrite data, the write performance of the RAID storage system is improved.

2. 发明授权

US5983283A Storage manager independent configuration interface translator and method 失效
标题翻译：存储管理器独立配置界面翻译器和方法
公开(公告)号：US5983283A
公开(公告)日：1999-11-09
申请号：US632217
申请日：1996-04-15
申请人： Steven T. Senator , Dale R. Passmore , Robert S. Gittins
发明人： Steven T. Senator , Dale R. Passmore , Robert S. Gittins
IPC分类号： G06F3/06 , G06F9/44
CPC分类号： G06F3/0601 , G06F2003/0697
摘要： A system, method and computer program product comprising a storage manager independent configuration interface translator which requests an opaque listing of the available storage devices from an associated metadisk driver and determines a subset of the listing meeting a preselected search criteria. The resultant opaque listing is then converted to a non-opaque format listing for presentation to a user of the computer system in a desired format such as through a command line or graphical user interface. A notification mechanism is also provided that presents information about storage devices which have in some way changed while in use.
摘要翻译：一种系统，方法和计算机程序产品，包括存储管理器独立的配置接口转换器，其从相关的元区驱动器请求不可见的可用存储设备列表，并确定满足预先选择的搜索准则的列表的子集。然后将所得的不透明列表转换为不透明的格式列表，以期望的格式（例如通过命令行或图形用户界面）呈现给计算机系统的用户。还提供通知机制，其提供关于在使用中以某种方式改变的存储设备的信息。

3. 发明授权

US06349359B1 Method and apparatus for maintaining data consistency in raid 有权
标题翻译：保持数据一致性的方法和装置
公开(公告)号：US06349359B1
公开(公告)日：2002-02-19
申请号：US09220988
申请日：1998-12-23
申请人： Robert S. Gittins , Dale R. Passmore
发明人： Robert S. Gittins , Dale R. Passmore
IPC分类号： G06F1200
CPC分类号： G06F11/1076
摘要： A method and apparatus for storing associated data in a computing system having two or more storage devices arranged in a RAID configuration. The storage devices have a prewrite area for pre-storage of the data, and data region for persistent storage of the data. A scoreboard memory structure is created for monitoring the state of the prewrite area, and data in the prewrite area is conditionally invalidated based upon the information contained in the scoreboard memory structure. By conditionally invalidating the prewrite data, the write performance of the RAID storage system is improved.
摘要翻译：一种用于在具有以RAID配置布置的两个或多个存储设备的计算系统中存储关联数据的方法和装置。存储设备具有用于预存储数据的预写区域和用于数据的持久存储的数据区域。创建记分板存储器结构，用于监视预写区域的状态，并且基于包含在记分板存储器结构中的信息有条件地使预写区域中的数据无效。通过有条件地使预写数据无效，RAID存储系统的写入性能得到改善。

4. 发明授权

US5802364A Metadevice driver rename/exchange technique for a computer system incorporating a plurality of independent device drivers 失效
标题翻译：用于包含多个独立设备驱动程序的计算机系统的Metadevice驱动程序重命名/交换技术
公开(公告)号：US5802364A
公开(公告)日：1998-09-01
申请号：US632006
申请日：1996-04-15
申请人： Steven T. Senator , Dale R. Passmore , Robert S. Gittins
发明人： Steven T. Senator , Dale R. Passmore , Robert S. Gittins
IPC分类号： G06F13/10 , G06F3/06 , G06F9/44 , G06F9/445 , G06F9/46 , G06F11/14 , G06F15/163 , G06F9/00
CPC分类号： G06F3/0601 , G06F11/14 , G06F8/71 , G06F9/4411 , G06F9/52 , G06F2003/0697
摘要： A metadisk driver functionally intermediate a computer operating system and one or more metadrivers and underlying layered drivers provides a driver rename/exchange function which does not depend on any particular driver having knowledge of the private data structures of any of the other drivers. The rename/exchange technique implemented thereby may be conducted while the underlying devices are on-line and comprise atomic operations which are, therefore, recoverable inasmuch as the operation will have either been completed or will not be committed in the event of any interruption.
摘要翻译：功能上位于计算机操作系统和一个或多个元定位器和下层分层驱动器之间的元区驱动器提供驱动器重命名/交换功能，其不依赖于具有任何其他驱动器的私有数据结构知识的任何特定驱动器。由此实现的重命名/交换技术可以在底层设备在线并且包括原子操作的同时进行，因此原子操作因此可以被恢复，因为操作将已经完成或者在任何中断的情况下将不会被提交。

5. 发明授权

US6032230A Method and apparatus that detects and tolerates inconsistencies between the cache and main memory, and the translation lookaside buffer and the virtual memory page table in main memory 有权
标题翻译：检测并容忍缓存和主存储器之间的不一致的方法和装置，以及主存储器中的翻译后备缓冲器和虚拟存储器页表
公开(公告)号：US6032230A
公开(公告)日：2000-02-29
申请号：US221535
申请日：1998-12-28
申请人： Billy J. Fuller , Dale R. Passmore
发明人： Billy J. Fuller , Dale R. Passmore
IPC分类号： G06F12/08 , G06F11/16 , G06F12/10 , G06F11/00
CPC分类号： G06F11/141 , G06F12/1027 , G06F12/1063
摘要： Inconsistencies between cache and memory in a memory system operating in a computer are traced and corrected. A cache entry is checked against a counterpart memory entry to trace inconsistencies between the cache entry and the memory entry and to correct the cache entry. A page table entry in memory with a zero mapping mark is checked against a counterpart page entry in a translation lookaside buffer. Inconsistencies between the page table entry with a zero mapping mark and the existence of a counterpart page entry in the translation lookaside buffer is traced. The inconsistency is corrected by deleting the counterpart page entry in the translation lookaside buffer. Address mapping is checked comparing a page entry in the translation lookaside buffer against a counterpart page table entry in the memory. Inconsistencies between the page entry and the page table entry are traced and corrected.
摘要翻译：跟踪和纠正在计算机中运行的存储器系统中缓存和存储器之间的不一致。根据对应的内存条目检查缓存条目，以跟踪缓存条目和内存条目之间的不一致性，并更正缓存条目。对于翻译后备缓冲区中的对应页面条目，检查具有零映射标记的存储器中的页表项。跟踪具有零映射标记的页表条目与翻译后备缓冲器中的对应页条目的存在之间的不一致。通过删除翻译后备缓冲区中的对应页面条目来纠正不一致。检查地址映射，将翻译后备缓冲器中的页条目与存储器中的对应页表项进行比较。页面条目和页表项之间的不一致性被跟踪并被更正。

6. 发明授权

US5740348A System and method for selecting the correct group of replicas in a replicated computer database system 失效
标题翻译：在复制计算机数据库系统中选择正确的副本组的系统和方法
公开(公告)号：US5740348A
公开(公告)日：1998-04-14
申请号：US673082
申请日：1996-07-01
申请人： Joseph E. Cunliffe , Dale R. Passmore
发明人： Joseph E. Cunliffe , Dale R. Passmore
IPC分类号： G06F11/18
CPC分类号： G06F11/183 , Y10S707/99953
摘要： A system, method and computer program product for ensuring that a replicated computer database does not encounter a "split brain" problem by replicating the database and requiring a replica quorum wherein at least (50% +1) of the replicas are accessible and in agreement. When a replica quorum in not obtainable, but 50% of the copies of the data are in agreement, an external source, or "mediator", is called upon to provide a deciding vote (+1) to ensure that the data can be trusted.
摘要翻译：一种系统，方法和计算机程序产品，用于确保复制的计算机数据库不会通过复制数据库而遇到“分裂的大脑”问题，并需要复制数量，其中至少（50％+1）的副本可访问并且一致。当无法获得副本法定人数，但数据副本的50％是一致的，则需要外部来源或“调解人”提供决定性投票（+1）以确保数据可信。

7. 发明授权

US06467046B1 System and method for automatically distributing copies of a replicated database in a computer system 失效
标题翻译：在计算机系统中自动分发复制数据库的副本的系统和方法
公开(公告)号：US06467046B1
公开(公告)日：2002-10-15
申请号：US08643550
申请日：1996-05-06
申请人： Joseph E. Cunliffe , Dale R. Passmore
发明人： Joseph E. Cunliffe , Dale R. Passmore
IPC分类号： H02H305
CPC分类号： G06F11/2094
摘要： A computer implemented system, method and computer program product for automatically distributing copies of a replicated database for a computer system comprising at least first and second host computers. Each of the host computers operatively control at least one associated computer mass storage device controller coupled to commonly accessible computer mass storage devices by at least one storage device bus. The system and method comprises the step of enumerating each of the various host computers of the computer system, each of the computer mass storage device controllers associated with each host computer and each of the computer mass storage devices coupled to the storage device buses coupling the controllers. Copies of the replicated database are then automatically distributed across the computer mass storage devices such that failures of one or more of the computer mass storage device controllers or of one or more of the computer mass storage devices will not interrupt operation of the replicated database in the computer system.
摘要翻译：一种用于自动分发用于包括至少第一和第二主计算机的计算机系统的复制数据库的副本的计算机实现的系统，方法和计算机程序产品。每个主计算机通过至少一个存储设备总线可操作地控制耦合到共同可访问的计算机大容量存储设备的至少一个相关联的计算机大容量存储设备控制器。该系统和方法包括列举计算机系统的各个主机计算机的每一个的步骤，与每个主计算机相关联的每个计算机大容量存储设备控制器以及耦合到存储设备总线的每个计算机大容量存储设备，该总线将控制器。复制的数据库的副本然后自动地分布在计算机大容量存储设备中，使得一个或多个计算机大容量存储设备控制器或一个或多个计算机大容量存储设备的故障不会中断复制的数据库的操作电脑系统。

8. 发明授权

US5893152A Method and apparatus that detects and tolerates inconsistencies between the cache and main memory, and the translation lookaside buffer and the virtual memory page table in main memory 失效
公开(公告)号：US5893152A
公开(公告)日：1999-04-06
申请号：US612754
申请日：1996-03-08
申请人： Billy J. Fuller , Dale R. Passmore
发明人： Billy J. Fuller , Dale R. Passmore
IPC分类号： G06F12/08 , G06F11/16 , G06F12/10
CPC分类号： G06F11/141 , G06F12/1027 , G06F12/1063
摘要： Inconsistencies between cache and memory in a memory system operating in a computer are traced and corrected. A cache entry is checked against a counterpart memory entry to trace inconsistencies between the cache entry and the memory entry and to correct the cache entry. A page table entry in memory with a zero mapping mark is checked against a counterpart page entry in a translation lookaside buffer. Inconsistencies between the page table entry with a zero mapping mark and the existence of a counterpart page entry in the translation lookaside buffer is traced. The inconsistency is corrected by deleting the counterpart page entry in the translation lookaside buffer. Address mapping is checked comparing a page entry in the translation lookaside buffer against a counterpart page table entry in the memory. Inconsistencies between the page entry and the page table entry are traced and corrected.

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