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    • 1. 发明申请
    • Replacing a failing physical processor
    • 更换故障物理处理器
    • US20070079176A1
    • 2007-04-05
    • US11241709
    • 2005-09-30
    • William ArmstrongNaresh NayarGary Ricard
    • William ArmstrongNaresh NayarGary Ricard
    • G06F11/00
    • G06F11/203G06F9/5066G06F11/2025G06F11/2035
    • Replacing a failing physical processor in a computer supporting multiple logical partitions, where the logical partitions include dedicated partitions and shared processor partitions, the dedicated partitions are supported by virtual processors having assigned physical processors, and the shared processor partitions are supported by pools of virtual processors. The pools of virtual processors have assigned physical processors. Embodiments operate generally by assigning priorities to the dedicated partitions and to the pools of virtual processors; detecting a checkstop of a failing physical processor; retrieving the failing physical processor's state; replacing by a hypervisor the failing physical processor with a replacement physical processor assigned to a dedicated partition or pool, which dedicated partition or pool has the lowest priority among the priorities of the dedicated partitions and pools; and assigning the retrieved state of the failing physical processor as the state of the replacement physical processor.
    • 在支持多个逻辑分区(其中逻辑分区包括专用分区和共享处理器分区)的计算机中替换故障物理处理器,专用分区由具有分配的物理处理器的虚拟处理器支持,并且共享处理器分区由虚拟处理器池支持 。 虚拟处理器池分配了物理处理器。 实施例通常通过将优先级分配给专用分区和虚拟处理器池来进行操作; 检测故障物理处理器的检查停止; 检索故障物理处理器的状态; 由管理程序替换故障物理处理器,其中分配给专用分区或池的替换物理处理器,专用分区或池在专用分区和池的优先级中具有最低优先级; 以及将所述故障物理处理器的检索状态分配为所述替换物理处理器的状态。
    • 2. 发明申请
    • Method and apparatus for selective caching of transactions in a computer system
    • 用于在计算机系统中选择性缓存交易的方法和装置
    • US20050273527A1
    • 2005-12-08
    • US11201968
    • 2005-08-11
    • Chad OlstadGary RicardAdam StallmanLarry Youngren
    • Chad OlstadGary RicardAdam StallmanLarry Youngren
    • G06F12/00G06F17/30
    • G06F16/2358
    • A database manager selectively caches journal entries for certain database changes based on dynamic selection criteria. Preferably, a journal disk drive is provided for storing changes to the database. Database change entries are sequentially cached in a main memory journal buffer, a waiting journal write. When a buffer is filled, its buffer contents are written to the journal disk. However, certain change operations will cause the contents of the buffer to be written to the journal disk immediately, before filling the buffer. Certain database change entries selectively cause the buffer to be written, depending on dynamic selection criteria. Preferably, these selection criteria take into account both the estimated time to recover in the event of a system crash and the current level of activity on the system. Generally, the busier the system, the more data will be cached, and vice versa.
    • 数据库管理器基于动态选择标准选择性地高速缓存用于某些数据库更改的日记帐分录。 优选地,提供日志磁盘驱动器用于存储对数据库的改变。 数据库更改条目顺序缓存在主内存日记缓冲区中,等待日记本写入。 当缓冲区被填充时,其缓冲区内容被写入日志磁盘。 但是,在填充缓冲区之前,某些更改操作将导致缓冲区的内容立即写入日志磁盘。 某些数据库更改条目有选择地导致缓冲区被写入,这取决于动态选择标准。 优选地,这些选择标准考虑到在系统崩溃的情况下的恢复的估计时间和系统上的当前活动水平。 一般来说,系统繁忙,数据将被缓存,反之亦然。
    • 6. 发明申请
    • Apparatus and method for writing data to mirrored storage using multiple tasks working in parallel
    • 使用并行工作的多个任务向镜像存储器写入数据的装置和方法
    • US20050071584A1
    • 2005-03-31
    • US10671035
    • 2003-09-25
    • Kevin GriffinScott HeltGlen NelsonMark PiazzaGary Ricard
    • Kevin GriffinScott HeltGlen NelsonMark PiazzaGary Ricard
    • G06F11/20G06F12/08G06F12/14G06F12/16
    • G06F12/1441G06F11/2056
    • An apparatus and method provides the capability of mirroring storage from a primary system to a mirrored system in a way that uses parallelism in the mirrored system to maximize the efficiency of writing data to the mirrored storage for operations that do not conflict while serializing operations that do conflict. The mirroring of the present invention is “logical mirroring”, which does not require identical disk drives, and which supports mirroring between geographically remote locations to protect against catastrophic site failure. Parallelism is achieved in the mirrored system by dividing the virtual address space into multiple ranges, and by assigning a group of tasks to each range. When an operation is received on the mirrored system, the virtual address range that the operation affects is determined, and the operation is then delegated to the task group that corresponds to the affected virtual address range. By dividing the virtual address space into ranges, tasks in different ranges (i.e., in different task groups) may execute in parallel without any threat of conflict, and even tasks within the same range may execute in parallel if they operate in different portions of the range.
    • 一种装置和方法提供将存储从主系统镜像到镜像系统的能力,其方法是使用镜像系统中的并行性来最大限度地提高将数据写入镜像存储器的效率,以用于在串行化操作时不冲突的操作 冲突。 本发明的镜像是“逻辑镜像”,其不需要相同的磁盘驱动器,并且其支持在地理上偏远的位置之间的镜像,以防止灾难性的站点故障。 通过将虚拟地址空间划分为多个范围,并通过为每个范围分配一组任务,在镜像系统中实现并行化。 当在镜像系统上接收到操作时,确定操作影响的虚拟地址范围,然后将该操作委派给与受影响的虚拟地址范围对应的任务组。 通过将虚拟地址空间划分为范围,不同范围内的任务(即,在不同的任务组中)可以并行执行,而不会产生任何冲突的威胁,如果在相同范围内的任务可以并行执行,如果它们在 范围。