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    • 2. 发明授权
    • Reduced energy consumption using active vibration control
    • 使用主动振动控制降低能耗
    • US08139467B2
    • 2012-03-20
    • US12469023
    • 2009-05-20
    • Kenny C. GrossKalyanaraman VaidyanathanAleksey M. Urmanov
    • Kenny C. GrossKalyanaraman VaidyanathanAleksey M. Urmanov
    • G11B17/00
    • G11B33/144G11B19/042G11B33/08
    • Embodiments of a computer system that includes a vibration-cancelling mode, and a related method and computer-program product (e.g., software) for use with the computer system, are described. During operation, a processor monitors operations in the computer system, and may select either the vibration-cancelling mode or an inactive mode based on the monitored operations. For example, the processor may select the vibration-cancelling mode when there are input/output-(I/O) intensive workloads to an array of one or more hard disk drives (HDDs) in the computer system. In this way, the processor may reduce the energy consumption associated with vibration-induced retries to the HDDs (and reduced I/O throughput) without increasing the energy consumption associated with active vibration damping at other times, such as when the computer system is idle or during processor-intensive workloads.
    • 描述了包括振动消除模式的计算机系统的实施例,以及与计算机系统一起使用的相关方法和计算机程序产品(例如,软件)。 在操作期间,处理器监视计算机系统中的操作,并且可以基于所监视的操作来选择振动消除模式或不活动模式。 例如,当计算机系统中的一个或多个硬盘驱动器(HDD)的阵列存在输入/输出(I / O)密集型工作负载时,处理器可以选择振动消除模式。 以这种方式,处理器可以减少与振动引起的对HDD的重试相关的能量消耗(和降低的I / O吞吐量),而不会增加与其他时间的主动减振相关联的能量消耗,例如当计算机系统空闲时 或在处理器密集型工作负载期间。
    • 3. 发明授权
    • Selectively mitigating multiple vibration sources in a computer system
    • 选择性地减轻计算机系统中的多个振动源
    • US07761244B2
    • 2010-07-20
    • US11852059
    • 2007-09-07
    • Kenny C. GrossAleksey M. UrmanovKalyanaraman Vaidyanathan
    • Kenny C. GrossAleksey M. UrmanovKalyanaraman Vaidyanathan
    • G06F19/00G11B5/00
    • G11B33/08
    • One embodiment of the present invention provides a system that mitigates the effects of multiple vibration sources on a set of hard disk drives (HDDs) within a computer system. During operation, the system identifies a target HDD in the set of HDDs, wherein the performance of the target HDD is affected by mechanical vibrations. The system also identifies one or more primary vibration sources from the multiple vibration sources that affect the performance of the target HDD. Next, for each of the primary vibration sources, the system measures a first time-domain signal associated with the operation of the primary vibration source using a first vibration transducer associated with the primary vibration source. The system also measures a second time-domain signal associated with the target HDD using a second vibration transducer associated with the target HDD. Next, for each of the primary vibration sources, the system then computes a cross-power-spectral-density (CPSD) between the first and the second time-domain signals. The system then selectively mitigates the primary vibration sources based on the CPSDs between the primary vibration sources and the target HDD.
    • 本发明的一个实施例提供一种减轻多个振动源对计算机系统内的一组硬盘驱动器(HDD)的影响的系统。 在操作期间,系统识别该组HDD中的目标HDD,其中目标HDD的性能受到机械振动的影响。 该系统还识别影响目标HDD性能的多个振动源的一个或多个主要振动源。 接下来,对于每个主振动源,系统使用与主振动源相关联的第一振动换能器来测量与主振动源的操作相关联的第一时域信号。 该系统还使用与目标HDD相关联的第二振动传感器来测量与目标HDD相关联的第二时域信号。 接下来,对于每个主振动源,系统然后计算第一和第二时域信号之间的交叉功率谱密度(CPSD)。 然后,该系统基于主振动源和目标HDD之间的CPSD选择性地减轻主振动源。
    • 4. 发明申请
    • SELECTIVELY MITIGATING MULTIPLE VIBRATION SOURCES IN A COMPUTER SYSTEM
    • 在计算机系统中选择性地减轻多个振动源
    • US20090067080A1
    • 2009-03-12
    • US11852059
    • 2007-09-07
    • Kenny C. GrossAleksey M. UrmanovKalyanaraman Vaidyanathan
    • Kenny C. GrossAleksey M. UrmanovKalyanaraman Vaidyanathan
    • G11B15/18
    • G11B33/08
    • One embodiment of the present invention provides a system that mitigates the effects of multiple vibration sources on a set of hard disk drives (HDDs) within a computer system. During operation, the system identifies a target HDD in the set of HDDs, wherein the performance of the target HDD is affected by mechanical vibrations. The system also identifies one or more primary vibration sources from the multiple vibration sources that affect the performance of the target HDD. Next, for each of the primary vibration sources, the system measures a first time-domain signal associated with the operation of the primary vibration source using a first vibration transducer associated with the primary vibration source. The system also measures a second time-domain signal associated with the target HDD using a second vibration transducer associated with the target HDD. Next, for each of the primary vibration sources, the system then computes a cross-power-spectral-density (CPSD) between the first and the second time-domain signals. The system then selectively mitigates the primary vibration sources based on the CPSDs between the primary vibration sources and the target HDD.
    • 本发明的一个实施例提供一种减轻多个振动源对计算机系统内的一组硬盘驱动器(HDD)的影响的系统。 在操作期间,系统识别该组HDD中的目标HDD,其中目标HDD的性能受到机械振动的影响。 该系统还识别影响目标HDD性能的多个振动源的一个或多个主要振动源。 接下来,对于每个主振动源,系统使用与主振动源相关联的第一振动换能器来测量与主振动源的操作相关联的第一时域信号。 该系统还使用与目标HDD相关联的第二振动传感器来测量与目标HDD相关联的第二时域信号。 接下来,对于每个主振动源,系统然后计算第一和第二时域信号之间的交叉功率谱密度(CPSD)。 然后,该系统基于主振动源和目标HDD之间的CPSD选择性地减轻主振动源。