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    Dynamic self-tuning soft-error-rate-discrimination for enhanced availability of enterprise computing systems
    1.
    发明授权
    Dynamic self-tuning soft-error-rate-discrimination for enhanced availability of enterprise computing systems 有权
    动态自整定软错误率歧视，增强企业计算系统的可用性

    公开(公告)号：US07526683B1

    公开(公告)日：2009-04-28

    申请号：US11141844

    申请日：2005-06-01

    申请人： Lawrence G. Votta, Jr. ,  Kenneth C. Gross ,  Aleksey M. Urmanov ,  Douglas B. Meyer

    发明人： Lawrence G. Votta, Jr. ,  Kenneth C. Gross ,  Aleksey M. Urmanov ,  Douglas B. Meyer

    IPC分类号： G06F11/00

    CPC分类号： G06F11/008

    摘要： A method for use in a computer system provides a dynamic, “self tuning” soft-error-rate-discrimination (SERD) method and apparatus. Specially designed SRAMs or other circuits are “tuned” in a manner that gives them extreme susceptibility to cosmic neutron events (soft errors), higher than that of the “regular” SRAM components, memory modules or other components in the computer system. One such specially designed SRAM is deployed per server. An interface algorithm continuously sends read/write traffic to the special SRAM to infer the soft error rate (SER), which is directly proportional to cosmic neutron flux. The inferred cosmic neutron flux rate is employed in a Poisson SPRT algorithmic approach that dynamically compensates the soft error discrimination sensitivity in accordance with the instantaneous neutron flux for all of the regular SRAM components in the server.

    摘要翻译： 一种在计算机系统中使用的方法提供了一种动态的“自调谐”软错误率鉴别（SERD）方法和装置。 专门设计的SRAM或其他电路以“调谐”的方式使其对宇宙中子事件（软错误）具有极高的敏感性，高于计算机系统中“常规”SRAM组件，存储器模块或其他组件的极端敏感性。 每个服务器部署一个这样专门设计的SRAM。 接口算法连续向专用SRAM发送读/写流量，推断出与宇宙中子通量成正比的软误码率（SER）。 推测的宇宙中子通量速率采用泊松SPRT算法方法，根据服务器中所有常规SRAM组件的瞬时中子通量动态补偿软误差鉴别灵敏度。

    METHOD AND APPARATUS FOR ATTENUATING FAN NOISE THROUGH TURBULENCE MITIGATION
    3.
    发明申请
    METHOD AND APPARATUS FOR ATTENUATING FAN NOISE THROUGH TURBULENCE MITIGATION 有权
    通过湍流减轻来衰减风扇噪声的方法和装置

    公开(公告)号：US20090180635A1

    公开(公告)日：2009-07-16

    申请号：US11972043

    申请日：2008-01-10

    申请人： Kenneth C. Gross ,  Aleksey M. Urmanov ,  Charles E. Kinney

    发明人： Kenneth C. Gross ,  Aleksey M. Urmanov ,  Charles E. Kinney

    IPC分类号： G10K11/178 ,  H05K7/20

    CPC分类号： G10K11/178 ,  G06F1/206 ,  G10K2210/109 ,  G10K2210/11

    摘要： Some embodiments of the present invention provide a system that attenuates noise from a fan exhaust of a computer system. During operation, the system monitors the noise from the fan exhaust and calculates a frequency spectrum of the noise from the monitored noise. Next, the system generates an antiphase spectrum from the frequency spectrum and generates a flow of air which exhibits a property of the antiphase spectrum. Finally, the system directs the flow of air into the fan exhaust so that the noise is attenuated by a reduction of turbulence in the fan exhaust by the flow of air.

    摘要翻译： 本发明的一些实施例提供一种衰减来自计算机系统的风扇排气的噪声的系统。 在运行过程中，系统监视风扇排气噪声，并根据监测到的噪声计算噪声的频谱。 接下来，系统从频谱产生反相光谱，并产生具有反相光谱性质的空气流。 最后，系统将空气流引导到风扇排气中，以便通过空气流动减少风扇排气中的湍流，使噪音减弱。

    Determining operating fan speed for systems containing disk drives to minimize vibrational impact
    4.
    发明授权
    Determining operating fan speed for systems containing disk drives to minimize vibrational impact 有权
    确定包含磁盘驱动器的系统的运行风扇速度，以尽量减少振动影响

    公开(公告)号：US07565226B1

    公开(公告)日：2009-07-21

    申请号：US11701649

    申请日：2007-02-02

    申请人： John J. Cooley ,  Aleksey M. Urmanov ,  George Popescu ,  Kenneth C. Gross

    发明人： John J. Cooley ,  Aleksey M. Urmanov ,  George Popescu ,  Kenneth C. Gross

    IPC分类号： G01M1/38

    CPC分类号： G01M1/30

    摘要： A method and an apparatus for determining cooling fan speeds that should be avoided to prevent vibational resonance with system enclosures, given ambient conditions, and/or current geographic altitude. An exemplary method to determine one or more ranges of fan speed for one or more cooling fans in a chassis with one or more systems to avoid vibrational resonance in the chassis caused by the one or more cooling fans is provided. The method includes determining a range of operable fan speed for the one or more cooling fans that meets the cooling goal of the one or more systems in the chassis, wherein the one or more cooling fans are used to cool the chassis, and the one or more systems. The method also includes scanning fan speed for the one or more cooling fans over the determined range of operable fan speed, and collecting and analyzing read or write rates on a hard disk drive in the one or more systems over the determined range of operable fan speed. The method further includes determining one or more ranges of usable fan speed that avoid vibrational resonance in the chassis caused by the one or more cooling fans, based on the collected and analyzed read or write rates.

    摘要翻译： 一种用于确定应当避免的冷却风扇速度的方法和装置，以防止在给定环境条件和/或当前地理高度的情况下与系统外壳的振动共振。 提供了一种用于确定具有一个或多个系统的机架中的一个或多个冷却风扇的一个或多个风扇速度范围的示例性方法，以避免由一个或多个冷却风扇引起的在底盘中的振动共振。 该方法包括确定满足机箱中的一个或多个系统的冷却目标的一个或多个冷却风扇的可操作的风扇速度的范围，其中所述一个或多个冷却风扇用于冷却底盘， 更多的系统。 该方法还包括在可操作的风扇速度的确定范围内扫描一个或多个冷却风扇的风扇速度，以及在所确定的可操作风扇速度范围内收集和分析一个或多个系统中的硬盘驱动器上的读取或写入速率 。 该方法还包括基于收集和分析的读取或写入速率来确定避免由一个或多个冷却风扇引起的底盘振动共振的一个或多个可用风扇速度范围。

    Method and apparatus for attenuating fan noise through turbulence mitigation
    7.
    发明授权
    Method and apparatus for attenuating fan noise through turbulence mitigation 有权
    通过湍流减轻来衰减风扇噪声的方法和装置

    公开(公告)号：US08155332B2

    公开(公告)日：2012-04-10

    申请号：US11972043

    申请日：2008-01-10

    申请人： Kenneth C. Gross ,  Aleksey M. Urmanov ,  Charles E. Kinney

    发明人： Kenneth C. Gross ,  Aleksey M. Urmanov ,  Charles E. Kinney

    IPC分类号： G10K11/16 ,  F01N1/06 ,  F01N1/00

    CPC分类号： G10K11/178 ,  G06F1/206 ,  G10K2210/109 ,  G10K2210/11

    摘要： Some embodiments of the present invention provide a system that attenuates noise from a fan exhaust of a computer system. During operation, the system monitors the noise from the fan exhaust and calculates a frequency spectrum of the noise from the monitored noise. Next, the system generates an antiphase spectrum from the frequency spectrum and generates a flow of air which exhibits a property of the antiphase spectrum. Finally, the system directs the flow of air into the fan exhaust so that the noise is attenuated by a reduction of turbulence in the fan exhaust by the flow of air.

    摘要翻译： 本发明的一些实施例提供一种衰减来自计算机系统的风扇排气的噪声的系统。 在运行过程中，系统监视风扇排气噪声，并根据监测到的噪声计算噪声的频谱。 接下来，系统从频谱产生反相光谱，并产生具有反相光谱性质的空气流。 最后，系统将空气流引导到风扇排气中，以便通过空气流动减少风扇排气中的湍流，使噪音减弱。

    Method and apparatus for determining the effects of temperature variations within a computer system
    9.
    发明授权
    Method and apparatus for determining the effects of temperature variations within a computer system 有权
    用于确定计算机系统内的温度变化的影响的方法和装置

    公开(公告)号：US07171589B1

    公开(公告)日：2007-01-30

    申请号：US10739474

    申请日：2003-12-17

    申请人： Aleksey M. Urmanov ,  Lawrence G. Votta ,  Kenneth C. Gross ,  Su-Jaen Huang

    发明人： Aleksey M. Urmanov ,  Lawrence G. Votta ,  Kenneth C. Gross ,  Su-Jaen Huang

    IPC分类号： G06F11/00

    CPC分类号： G06F11/24

    摘要： One embodiment of the present invention provides a system that facilitates determining the effects of a temperature variation in a computer system. The system operates by systematically varying the flow of a coolant through the computer system to produce a temperature variation in the computer system while the computer system is operating. While this temperature variation is taking place, the system monitors the computer system to determine effects of the temperature variation on the computer system.

    摘要翻译： 本发明的一个实施例提供一种有助于确定计算机系统中温度变化的影响的系统。 系统通过系统地改变冷却剂通过计算机系统的流动来操作，以在计算机系统运行时在计算机系统中产生温度变化。 当这种温度变化发生时，系统监视计算机系统以确定温度变化对计算机系统的影响。

    Preventing oscillatory load behavior in a multi-node distributed system
    10.
    发明授权
    Preventing oscillatory load behavior in a multi-node distributed system 有权
    防止多节点分布式系统中的振荡负载行为

    公开(公告)号：US09448849B2

    公开(公告)日：2016-09-20

    申请号：US13223145

    申请日：2011-08-31

    申请人： Aleksey M. Urmanov ,  Anton A. Bougaev ,  Yuri Langer

    发明人： Aleksey M. Urmanov ,  Anton A. Bougaev ,  Yuri Langer

    IPC分类号： G06F11/30 ,  G06F9/50 ,  H04L29/08

    CPC分类号： G06F9/505 ,  G06F9/5083 ,  H04L67/1002 ,  H04L67/1029

    摘要： The disclosed embodiments provide a system that prevents oscillatory load behavior for a multi-node distributed system. During operation, the system uses a load-balancing policy to distribute requests to nodes of the distributed system. The system determines operational characteristics for the nodes as they process a set of requests, and then uses these operational characteristics to compute machine queuing models that describe the machine state of each node. The system then uses this machine state for the nodes to determine whether the load-balancing policy and the distributed system are susceptible to oscillatory load behavior.

    摘要翻译： 所公开的实施例提供了一种防止多节点分布式系统的振荡负载行为的系统。 在运行期间，系统使用负载平衡策略将请求分发到分布式系统的节点。 系统在处理一组请求时确定节点的操作特性，然后使用这些操作特性来计算描述每个节点的机器状态的机器排队模型。 系统然后将这个机器状态用于节点，以确定负载平衡策略和分布式系统是否易受振荡负载行为的影响。