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    DATA CENTER COOLING SYSTEM
    4.
    发明申请
    DATA CENTER COOLING SYSTEM 审中-公开
    数据中心冷却系统

    公开(公告)号：WO2014015099A3

    公开(公告)日：2014-03-13

    申请号：PCT/US2013051000

    申请日：2013-07-18

    Applicant: IBM

    Inventor： CHAINER TIMOTHY J ,  DANG HIEN P ,  PARIDA PRITISH R ,  SCHULTZ MARK D ,  SHARMA ARUN

    IPC: H05K7/20

    CPC classification number: H05K7/20836 ,  G06F1/206

    Abstract: A method for removing heat from a data center using liquid coolant cooled without vapor compression refrigeration on a liquid cooled information technology equipment rack. The method includes regulating liquid coolant flow to the data center through a range of liquid coolant flow values with a controller-apparatus based upon information technology equipment temperature threshold of the data center. A data center cooling system includes heat transfer equipment to cool a liquid coolant without vapor compression refrigeration, and the liquid coolant is used on a liquid cooled information technology equipment rack housed in the data center. The system includes a controller-apparatus to regulate the liquid coolant flow to the liquid cooled information technology equipment rack through a range of liquid coolant flow values based upon information technology equipment temperature thresholds.

    Abstract translation: 一种使用在液冷式信息技术设备机架上无蒸气压缩冷却而冷却的液体冷却剂从数据中心去除热量的方法。 该方法包括基于数据中心的信息技术设备温度阈值，利用控制器 - 装置通过一定范围的液体冷却剂流量值来调节流向数据中心的液体冷却剂流量。 数据中心冷却系统包括传热设备，用于冷却液体冷却剂而不蒸汽压缩冷却，液体冷却剂用于数据中心内的液体冷却信息技术设备机架。 该系统包括控制器 - 装置，用于基于信息技术设备温度阈值通过一定范围的液体冷却剂流量值来调节流向液体冷却信息技术设备机架的液体冷却剂流量。

    PREDICTIVE READ/WRITE INHIBIT DECISION USING FUZZY LOGIC
    6.
    发明专利
    PREDICTIVE READ/WRITE INHIBIT DECISION USING FUZZY LOGIC 未知

    公开(公告)号：CA2089788C

    公开(公告)日：1996-10-08

    申请号：CA2089788

    申请日：1993-02-18

    Applicant: IBM

    Inventor： OTTESEN HAL HJALMAR ,  SHARMA ARUN ,  SRI-JAYANTHA MUTHUTHAMBY

    IPC: G11B5/09 ,  G11B19/02 ,  G11B19/04 ,  G11B20/10 ,  G11B20/18 ,  G11B21/10 ,  G06F11/00

    Abstract: A method for predicting and avoiding data errors by predicting disk drive read-write inhibit requirements in response to at least two parameters including a head position error and velocity with respect to the track centerline. A write or read inhibit signal is generated in response to selected combinations of these parameters to minimize soft read errors arising from track misregistration and to avoid hard errors arising from overwriting data recorded in an adjacent track. The read and write inhibit strategy is described as a pair of linguistic control rules suitable for implementation in a Fuzzy Logic Controller.

    8.
    发明专利
    未知

    公开(公告)号：BR0005794A

    公开(公告)日：2001-12-11

    申请号：BR0005794

    申请日：2000-11-22

    Applicant: IBM

    Inventor： SRI-JAYANTHA SRI M ,  KHANNA VIJAYESHWAR DAS ,  MCVICKER GERARD M ,  DANG IEN ,  SHARMA ARUN ,  SATOH KIYOSHI ,  NAKAMOTO TATSUO

    IPC: G11B33/12 ,  G11B25/04 ,  G11B33/08 ,  G11B5/54

    Abstract: A system for mounting a hard disk enclosure (HDE), includes a casing pivotably mounted to minimize at least one of settle-out dynamics, external rotational vibration, and emitted vibration, the casing allowing the HDE to rotate substantially freely, wherein the center of gravity of the HDE is substantially the same as a pivot point of the casing. Further, a computer chassis includes a housing, at least one disk drive assembly for being housed by the housing, and a plurality of theta-mounts integrally built within the housing.

    OPTIMUM ROTATIONAL MODE DECOUPLING SHOCK MOUNT CONFIGURATION FOR DASDS
    10.
    发明专利
    OPTIMUM ROTATIONAL MODE DECOUPLING SHOCK MOUNT CONFIGURATION FOR DASDS 未知

    公开(公告)号：CA2089792A1

    公开(公告)日：1993-10-31

    申请号：CA2089792

    申请日：1993-02-18

    Applicant: IBM

    Inventor： BOIGENZAHN JEFFREY F ,  DAEDE RONALD J ,  MOSER MICHAEL A ,  NAGARAJAN SUBRAHMANYAN ,  OTTESEN HAL H ,  SHARMA ARUN ,  SRI-JAYANTHAN MUTHUTHAMBY

    IPC: G11B33/08 ,  H05K7/00 ,  G06F1/16

    Abstract: OPTIMUM ROTATIONAL MODE DECOUPLING SHOCK MOUNT CONFIGURATION FOR DASDS An apparatus and a method for decoupling external linear vibration from a device mounted in an enclosure, so as to reduce resulting rotational motion of the device. The apparatus comprises n vibration isolation mounts having characteristics and being positioned so that the center of stiffness and the center of damping coincide with the center of mass of the device. The invention may be applied to direct access storage devices having arbilrary mounting configurations where the geometry of the mounting configurations and/or the mass distribution of the head-disc assembly are not necessarily symmetrical. Alternatively, the damping and stiffness parameters may be isotropic in the plane of the device and the axes of the vibration isolation mounts may be disposed in a direction perpendicular to the plane of the device. The stiffness and damping constants may be equal for each mounting point and the mounting points may be located so as to be symmetric with respect to each other in the plane of the device. The center of stiffness and the center of mass may also be at the same point along an axis perpendicular to the plane of the device. A balancing mass may be applied to the device to change its center of mass to coincide with the center of stiffness. For a given mass and inertia distribution, isolation mountsare designed to be disposed in polygonally shaped configurations so as to satisfy critical equations, so that complete rigid body mode decoupling occurs. With an assumption that the mount stiffness and damping are to be identical for all mounts, the geometry of the locations arc simplified to have symmetries that result in regular polygons such as an isosceles triangle, a trapezoid, a square, a rectangle, etc. YO991-202

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