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    CLUSTER NODE DISTRESS SIGNAL
    1.
    发明专利
    CLUSTER NODE DISTRESS SIGNAL 未知

    公开(公告)号：CA2290289C

    公开(公告)日：2005-07-12

    申请号：CA2290289

    申请日：1999-11-22

    Applicant: IBM

    Inventor： BLOCK TIMOTHY ROY ,  RABE RODNEY LEE

    IPC: G06F15/177 ,  G06F11/00 ,  G06F11/07 ,  G06F11/30 ,  G06F15/16

    Abstract: The preferred embodiment of the present invention provides a cluster node distress system and method that improves the reliability of a cluster. The cluster node distress system provides a cluster node distress signal when a node within the cluster is about to fail. This allows the cluster to better to determine whether a non-communicating node has failed or has merely been partitioned from the cluster. The preferred cluster node distress system is embedded deeply into the operating system and provides a pre-built node distress signal that can be quickly sent to other nodes within the cluster when an imminent failure of any node is detected, improving the probability that the node distress signal will get out before the node totally fails. When the node distress signal is effectively sent to other nodes within the cluster, the cluster can accurately determine which node has failed and has not just been partitioned from the cluster. This allows the cluster to respo nd correctly, i.e., by assigning other nodes primary and backup responsibility, with less manual intervention and troubleshooting needed by administrators.

    CLUSTER NODE DISTRESS SIGNAL
    2.
    发明专利
    CLUSTER NODE DISTRESS SIGNAL 未知

    公开(公告)号：CA2290289A1

    公开(公告)日：2000-09-30

    申请号：CA2290289

    申请日：1999-11-22

    Applicant: IBM

    Inventor： BLOCK TIMOTHY ROY ,  RABE RODNEY LEE

    IPC: G06F15/177 ,  G06F11/00 ,  G06F11/07 ,  G06F11/30 ,  G06F15/16

    Abstract: The preferred embodiment of the present invention provides a cluster node distress system and method that improves the reliability of a cluster. The cluster node distress system provides a cluster node distress signal when a node within the cluster is about to fail. This allows the cluster to better to determine whether a non-communicating node has failed or has merely been partitioned from the cluster. The preferred cluster node distress system is embedded deeply into the operating system and provides a pre-built node distress signal that can be quickly sent to other nodes within the cluster when an imminent failure of any node is detected, improving the probability that the node distress signal will get out before the node totally fails. When the node distress signal is effectively sent to other nodes within the cluster, the cluster can accurately determine which node has failed and has not just been partitioned from the cluster. This allows the cluster to respond correctly, i.e., by assigning other nodes primary and backup responsibility, with less manual intervention and troubleshooting needed by administrators.

    NODE SHUTDOWN IN CLUSTERED COMPUTER SYSTEM
    3.
    发明专利
    NODE SHUTDOWN IN CLUSTERED COMPUTER SYSTEM 未知

    公开(公告)号：CA2376351A1

    公开(公告)日：2002-10-06

    申请号：CA2376351

    申请日：2002-03-12

    Applicant: IBM

    Inventor： BLOCK TIMOTHY ROY ,  MILLER ROBERT ,  THAYIB KISWANTO

    IPC: G06F11/00 ,  G06F15/16 ,  H04L12/28

    Abstract: A clustered computer system, apparatus, program product and method utilize a group member-initiated shutdown process to terminate clustering on a node in an automated and orderly fashion, typically in the event of a failure detected by a group member residing on that node. As a component of such a process, node leave operations are initiated on the other nodes in a clustered computer system, thereby permitting any dependency failovers to occur in an automated fashion. Moreover, other group members on a node to be shutdown ar e preemptively terminated prior to local detection of the failure within those other group members, so that termination of clustering on the node may be initiated to complete a shutdow n operation.

    4.
    发明专利
    未知

    公开(公告)号：DE69027522T2

    公开(公告)日：1997-01-23

    申请号：DE69027522

    申请日：1990-11-27

    Applicant: IBM

    Inventor： BLOCK TIMOTHY ROY ,  EBLER MARCIA BERG ,  FREITAG LADD WILLIAM ,  HEILING GERALD MICHAEL ,  HOLTER SPENCER CLINTON ,  KARST DENNIS LEON ,  SILJENBERG DAVID WARREN ,  SODERSTROM RONALD LEE ,  TRNKA JOHN THOMAS

    IPC: H04B10/12 ,  G02B6/38 ,  H04B10/135 ,  H04B10/14 ,  H04B10/155 ,  H04B10/2581 ,  H04B10/00 ,  G02B6/42

    Abstract: An optical fiber link card communication module, and process for fabricating the module, where the module provides a parallel electrical interface to the user, facilitates high speed serial transmission of data over an optical data link, and contains a plurality of converters (130,131) for performing conversions between both electrical and optical signals. The module further includes edge mounted optical components having leads mounted on the surface of a card (as opposed to standard pin-in-hole type leads) to minimize lead capacitance and inductance from the optical components to the card electronics, on board card control means for the converters and safety shut down means on the same card as the electrical and optical components. A preferred embodiment of the invention contemplates fabricating the optical communication module on a single multilayer card with all the transmitter electrical components being located on one side of the card, all receiver electrical components being located on the other side of the card, and the transmitter and receiver components being separated by shielding layers in the card. By using two transmitter/receiver pairs (with the transmitters and receivers being located on respective sides of the card) an embodiment of the invention provides for double full duplex communications.

    7.
    发明专利
    未知

    公开(公告)号：DE69027522D1

    公开(公告)日：1996-07-25

    申请号：DE69027522

    申请日：1990-11-27

    Applicant: IBM

    Inventor： BLOCK TIMOTHY ROY ,  EBLER MARCIA BERG ,  FREITAG LADD WILLIAM ,  HEILING GERALD MICHAEL ,  HOLTER SPENCER CLINTON ,  KARST DENNIS LEON ,  SILJENBERG DAVID WARREN ,  SODERSTROM RONALD LEE ,  TRNKA JOHN THOMAS

    IPC: H04B10/12 ,  G02B6/38 ,  H04B10/135 ,  H04B10/14 ,  H04B10/155 ,  H04B10/2581 ,  H04B10/00 ,  G02B6/42

    Abstract: An optical fiber link card communication module, and process for fabricating the module, where the module provides a parallel electrical interface to the user, facilitates high speed serial transmission of data over an optical data link, and contains a plurality of converters (130,131) for performing conversions between both electrical and optical signals. The module further includes edge mounted optical components having leads mounted on the surface of a card (as opposed to standard pin-in-hole type leads) to minimize lead capacitance and inductance from the optical components to the card electronics, on board card control means for the converters and safety shut down means on the same card as the electrical and optical components. A preferred embodiment of the invention contemplates fabricating the optical communication module on a single multilayer card with all the transmitter electrical components being located on one side of the card, all receiver electrical components being located on the other side of the card, and the transmitter and receiver components being separated by shielding layers in the card. By using two transmitter/receiver pairs (with the transmitters and receivers being located on respective sides of the card) an embodiment of the invention provides for double full duplex communications.

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