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1. 发明授权

US4982402A Method and apparatus for detecting and correcting errors in a pipelined computer system 失效
标题翻译：用于检测和纠正流水线计算机系统中的错误的方法和装置
公开(公告)号：US4982402A
公开(公告)日：1991-01-01
申请号：US306828
申请日：1989-02-03
申请人： Richard C. Beaven , Michael B. Evans , Tryggve Fossum , Ricky C. Hetherington , William R. Grundmann , John E. Murray , Ronald M. Salett
发明人： Richard C. Beaven , Michael B. Evans , Tryggve Fossum , Ricky C. Hetherington , William R. Grundmann , John E. Murray , Ronald M. Salett
IPC分类号： G06F9/38 , G06F11/07 , G06F11/14 , G06F11/267 , G06F15/16 , G06F15/177
CPC分类号： G06F11/2236 , G06F11/0724 , G06F11/0772 , G06F11/0781 , G06F11/1405 , G06F9/3863
摘要： In a multiprocessor system, an error occurring in any one of the CPUs may have an impact upon the operation of the remaining CPUs, and therefore these errors must be handled quickly. The errors are grouped into two categories: synchronous errors (those that must be corrected immediately to allow continued processing of the current instruction); and asynchronous errors (those errors that do not affect execution of the current instruction and may be handled upon completing execution of the current instruction). Since synchronous errors prevent continued execution of the current instruction, it is preferable that the last stable state conditions of the faulting CPU be restored and the faulting instruction reexecuted. These stable state conditions advantageously occur between the execution of each instruction. However, in a pipelined computer system, it is difficult to identify the beginning and ending of a selected instruction since multiple instructions are in process at the same time. Accordingly, the execution unit is selected to be the point of synchronization between error handling and instruction execution. Once the error is indentified as asynchronous or synchronous and the execution unit allows the instruction to complete or rolls back the state conditions to their preinstruction values, error analyzing software examines the condition of the suspect data latches in the CPU. A serial diagnostic link stops the system clock of the CPU and serially loads the CPU data latches into the System Processor Unit for error determination. Thereafter, the CPU system clock is restarted and the CPU resumes execution.

2. 发明授权

US5255381A Mode switching for a memory system with diagnostic scan 失效
标题翻译：具有诊断扫描功能的存储系统的模式切换
公开(公告)号：US5255381A
公开(公告)日：1993-10-19
申请号：US582476
申请日：1990-09-14
申请人： Kumar Chinnaswamy , Hansel A. Collins , Michael B. Evans , Timothy P. Fissette , Michael A. Gagliardo , John J. Lynch , James E. Tessari
发明人： Kumar Chinnaswamy , Hansel A. Collins , Michael B. Evans , Timothy P. Fissette , Michael A. Gagliardo , John J. Lynch , James E. Tessari
IPC分类号： G06F11/22 , G01R31/317 , G06F11/273 , G06F12/16 , G11C11/4076 , G06F12/00 , G11C7/00
CPC分类号： G11C11/4076 , G01R31/31701 , G06F11/2736
摘要： Methods and apparatus for immunizing dynamic random access memory (DRAM) modules in the data processing system against data loss from transitions that occur with memory mode switching during the scan operation and permitting normal operations to be performed on the memory modules regardless of the state of the system clocks.

3. 发明授权

US08392370B1 Managing data on data storage systems 有权
标题翻译：管理数据存储系统的数据
公开(公告)号：US08392370B1
公开(公告)日：2013-03-05
申请号：US12058240
申请日：2008-03-28
申请人： William Whitney , Uday K. Gupta , Michael B. Evans , Gerald E. Cotter
发明人： William Whitney , Uday K. Gupta , Michael B. Evans , Gerald E. Cotter
IPC分类号： G06F7/00 , G06F13/28
CPC分类号： G06F3/0605 , G06F3/0649 , G06F3/067 , G06F3/0685
摘要： A method is used in managing data on data storage systems. Rules are defined for candidate data unit selection. The rules are automatically executed on a primary data storage system to examine data units on the primary data storage system. The rules are applied to the data units. A data unit is identified that matches the rules and the identified data unit is migrated. The identified data unit is copied from the primary storage system to a secondary storage system. The identified data unit on the primary storage system is replaced with metadata. the data storage space in the primary storage system corresponding to the identified data unit is freed up.
摘要翻译：一种方法用于管理数据存储系统上的数据。为候选数据单元选择定义规则。这些规则在主数据存储系统上自动执行，以检查主数据存储系统上的数据单元。规则适用于数据单元。识别与规则匹配并且识别的数据单元被迁移的数据单元。所识别的数据单元从主存储系统复制到辅助存储系统。主存储系统上识别的数据单元被元数据替换。与所识别的数据单元对应的主存储系统中的数据存储空间被释放。

4. 发明授权

US5671225A Distributed interactive multimedia service system 失效
标题翻译：分布式互动多媒体服务系统
公开(公告)号：US5671225A
公开(公告)日：1997-09-23
申请号：US522966
申请日：1995-09-01
申请人： Donald F. Hooper , Dave M. Tongel , Michael B. Evans
发明人： Donald F. Hooper , Dave M. Tongel , Michael B. Evans
IPC分类号： H04N7/173 , H04L29/06 , H04J3/16
CPC分类号： H04L29/06 , H04L67/42
摘要： In a distributed interactive multimedia service system, a client application of a set-top box located at a customer premises generates an attach request. A session manager, in response to receiving the attach request via a network, generates an allocation request and a create request. A resource manager, in response to the allocation request, allocates resources of a plurality of multimedia servers. The resources can include processor, memory, disk, and network resources. A media stream manager, in response to the create request, creates a multimedia stream. The session manager, in response to the resources being allocated, and the multimedia stream being created, launches a selected one of a plurality of multimedia services in the plurality of multimedia servers. The selected service provides multimedia information to the set-top box via the multimedia stream. The system includes a memory storing the plurality of multimedia services in a hierarchical tree structure having nodes representing composite and elemental services.
摘要翻译：在分布式交互式多媒体服务系统中，位于客户驻地的机顶盒的客户端应用产生附加请求。会话管理器响应于通过网络接收附加请求，生成分配请求和创建请求。资源管理器响应于分配请求分配多个多媒体服务器的资源。资源可以包括处理器，内存，磁盘和网络资源。媒体流管理器响应于创建请求，创建多媒体流。会话管理器响应于正在分配的资源和正在创建的多媒体流，在多个多媒体服务器中启动多个多媒体服务中的选定的一个。所选择的服务经由多媒体流向机顶盒提供多媒体信息。该系统包括以分层树结构存储多个多媒体服务的存储器，其具有表示复合和元素服务的节点。

5. 发明授权

US5313623A Method and apparatus for performing diagnosis scanning of a memory unit regardless of the state of the system clock and without affecting the store data 失效
标题翻译：无论系统时钟的状态如何而不影响存储数据，执行存储器单元的诊断扫描的方法和装置
公开(公告)号：US5313623A
公开(公告)日：1994-05-17
申请号：US547656
申请日：1990-07-03
申请人： Kumar Chinnaswamy , Hansel A. Collins , Michael B. Evans , Timothy P. Fissette , Michael A. Gagliardo , John J. Lynch , James E. Tessari
发明人： Kumar Chinnaswamy , Hansel A. Collins , Michael B. Evans , Timothy P. Fissette , Michael A. Gagliardo , John J. Lynch , James E. Tessari
IPC分类号： G01R31/317 , G06F11/273 , G11C11/4076 , G06F11/22
CPC分类号： G01R31/31701 , G11C11/4076 , G06F11/2736
摘要： Methods and apparatus for immunizing dynamic random access memory (DRAM) modules in the data processing system against data loss from transitions that occur with memory mode switching during the scan operation and permitting normal operations to be performed on the memory modules regardless of the state of the system clocks.
摘要翻译：用于免疫数据处理系统中的动态随机存取存储器（DRAM）模块的方法和装置，以防止在扫描操作期间随着存储器模式切换而发生的转换的数据丢失，并允许对存储器模块执行正常操作，而不管系统时钟。

6. 发明授权

US5146564A Interface between a system control unit and a service processing unit of a digital computer 失效
标题翻译：系统控制单元与数字计算机的维修处理单元之间的接口
公开(公告)号：US5146564A
公开(公告)日：1992-09-08
申请号：US306325
申请日：1989-02-03
申请人： Michael B. Evans , Rueysen Lin , Brian F. Rost , R. Stephen Polzin
发明人： Michael B. Evans , Rueysen Lin , Brian F. Rost , R. Stephen Polzin
IPC分类号： G06F15/16 , G06F13/42 , G06F15/177
CPC分类号： G06F13/4243
摘要： A computer system includes a plurality of central processing units (CPUs), a main memory, a system control unit (SCU) for controlling the transfer of data between the CPUs and the main memory, and a service processing unit (SPU) to interface the computer system with the outside world, such as an operator console. The method used for interfacing the SPU and SCU includes delivering a BUFFER FULL handshaking signal from the SPU to the SCU in response to the SPU receive buffer having data contained therein and being unavailable to receive data. The SCU responds to the absence of the BUFFER FULL handshaking signal by delivering a TRANSMIT FRAME handshaking signal to the SCU. A preselected duration of time after delivering the transmit frame, the SCU delivers the actual data in a series of fourteen consecutive clock cycles. Further, the method for delivering data from the transmit buffer of the SPU to a receive buffer of the SCU includes delivering a BUFFER REQUEST handshaking signal from the SPU to the SCU in order to determine if a buffer is currently available in the SCU. When a receive buffer grant becomes available in the SCU, a buffer grant handshaking signal is delivered to the SPU. The SPU responds by delivering the actual data in fourteen consecutive clock cycles.

7. 发明授权

US08473566B1 Methods systems, and computer program products for managing quality-of-service associated with storage shared by computing grids and clusters with a plurality of nodes 有权
标题翻译：用于管理与由多个节点计算网格和群集共享的存储相关联的服务质量的方法系统和计算机程序产品
公开(公告)号：US08473566B1
公开(公告)日：2013-06-25
申请号：US11479939
申请日：2006-06-30
申请人： John T. Cardente , James T. Compton , Michael B. Evans , Stephen A. Fridella , Uday K. Gupta
发明人： John T. Cardente , James T. Compton , Michael B. Evans , Stephen A. Fridella , Uday K. Gupta
IPC分类号： G06F15/167 , H04L1/00
CPC分类号： G06F3/061 , G06F3/0647 , G06F3/0653 , G06F3/067 , H04L67/1097
摘要： Methods, systems, and computer program products for managing quality of service for shared storage accessed by a plurality of nodes are disclosed. According to one method, at a node of a plurality of nodes sharing access to a first disk array, quality-of-service (QoS) metadata associated with a portion of the disk array are requested from a server, wherein the QoS metadata includes at least one performance criterion for the portion of the disk array. I/O performance is monitored for the portion of the disk array in response to receiving the QoS metadata. The monitored I/O performance is compared with the QoS metadata. Based upon the comparison of the monitored I/O performance with the QoS metadata, it is determined whether a QoS violation has occurred. In response to determining that a QoS violation has occurred, the server is requested to migrate data associated with the portion of the disk array.
摘要翻译：公开了用于管理由多个节点访问的共享存储器的服务质量的方法，系统和计算机程序产品。根据一种方法，在共享对第一磁盘阵列的访问的多个节点的节点处，从服务器请求与所述磁盘阵列的一部分相关联的服务质量（QoS）元数据，其中所述QoS元数据包括在磁盘阵列部分的至少一个性能标准。响应于接收到QoS元数据，对磁盘阵列的部分监视I / O性能。将监视的I / O性能与QoS元数据进行比较。基于所监视的I / O性能与QoS元数据的比较，确定是否发生QoS冲突。响应于确定已经发生QoS冲突，请求服务器迁移与磁盘阵列的一部分相关联的数据。

8. 发明授权

US08296534B1 Techniques for using flash-based memory in recovery processing 有权
标题翻译：在恢复处理中使用基于闪存的内存的技术
公开(公告)号：US08296534B1
公开(公告)日：2012-10-23
申请号：US11824485
申请日：2007-06-29
申请人： Uday K. Gupta , Charles H. Hopkins , Michael B. Evans
发明人： Uday K. Gupta , Charles H. Hopkins , Michael B. Evans
IPC分类号： G06F12/00
CPC分类号： G06F12/0891 , G06F11/1441 , G06F12/0246 , G06F12/0804 , G06F12/0815 , G06F12/0866 , G06F2212/214 , G06F2212/7202 , G06F2212/7204
摘要： Described are techniques for performing recovery processing in a data storage system. A providing a flash-based memory is provided with includes cached write data that has not been destaged to a data storage device. It is determined whether said flash-based memory has a threshold amount of storage available thereon. If the flash-based memory does not have the threshold amount of storage available thereon, portions of the cache write data are destaged until said flash-based memory has a threshold amount of storage available thereon. Received data requests are processed in accordance with a first policy different from a second policy used in connection with processing received data requests if said flash-based memory has a threshold amount of storage available thereon.
摘要翻译：描述了在数据存储系统中执行恢复处理的技术。提供了一种提供基于闪存的存储器，其中包括尚未迁移到数据存储设备的高速缓存的写入数据。确定所述基于闪存的存储器是否具有可用的阈值存储量。如果基于闪存的存储器不具有在其上可用的阈值量的存储器，则高速缓存写入数据的部分将被停止，直到所述基于闪存的存储器具有在其上可用的阈值存储量。如果所述基于闪存的存储器具有可用的阈值存储量，则根据与结合处理接收到的数据请求而使用的第二策略不同的第一策略来处理接收到的数据请求。

9. 发明授权

US07793061B1 Techniques for using flash-based memory as a write cache and a vault 有权
标题翻译：使用基于闪存的内存作为写缓存和保管库的技术
公开(公告)号：US07793061B1
公开(公告)日：2010-09-07
申请号：US11824577
申请日：2007-06-29
申请人： Uday K. Gupta , Charles H. Hopkins , Michael B. Evans
发明人： Uday K. Gupta , Charles H. Hopkins , Michael B. Evans
IPC分类号： G06F12/16
CPC分类号： G06F11/1441
摘要： Described are techniques for managing data in a data storage system. While the data storage system is operating in a first mode, portions of cached write data not yet destaged to a data storage device are copied from the volatile memory cache to a first area in a flash-based memory. In response to a vault operation event, the data storage system operates in a second mode in which all remaining portions of cached write data from the volatile memory cache not currently included in the first area are copied to a second area of the flash-based memory.
摘要翻译：描述了用于管理数据存储系统中的数据的技术。当数据存储系统以第一模式运行时，尚未转移到数据存储设备的高速缓存的写入数据的部分从易失性存储器高速缓存复制到基于闪存的存储器中的第一区域。响应于文件库操作事件，数据存储系统以第二模式操作，其中来自当前未包括在第一区域中的易失性存储器高速缓存的写入数据的所有剩余部分被复制到基于闪存的存储器的第二区域。

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