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    User name R. Michaels

    Log entry time 02:01:32 on November 4,2002

    Entry number 89548

    keyword=network DAQ switch rebooting itself

    Mike Memory of computer center informs me that the network switch
    inside the hall for the 192 subnet used by the spectrometer DAQ is rebooting
    itself spontaneously about 3 times a day. I cannot verify independently that
    this is happening, and I note there were no big complaints about DAQ during these
    times. However, it is likely the switch reboots in a few seconds so that there
    is a few seconds of high deadtime. It might not even be that bad since the DAQ
    is buffered and can endure brief network outages. One would need to check the
    deadtime in scalers updated every few seconds in the runs. Below is a log of
    the switch reboots in the past week. We'll need to let Mike check or replace the
    switch at the next access, or sooner if you are worried.
    1035760178 1 Sun Oct 27 18:09:38 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035763170 1 Sun Oct 27 18:59:30 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035824775 1 Mon Oct 28 12:06:15 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035824786 1 Mon Oct 28 12:06:26 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035824793 1 Mon Oct 28 12:06:33 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035824803 1 Mon Oct 28 12:06:43 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035825145 1 Mon Oct 28 12:12:25 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035878270 1 Tue Oct 29 02:57:50 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035880670 1 Tue Oct 29 03:37:50 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1035970860 1 Wed Oct 30 04:41:00 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036109295 1 Thu Oct 31 19:08:15 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036151962 1 Fri Nov 01 06:59:22 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036151993 1 Fri Nov 01 06:59:53 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036152001 1 Fri Nov 01 07:00:01 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036152008 1 Fri Nov 01 07:00:08 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036152019 1 Fri Nov 01 07:00:19 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036152026 1 Fri Nov 01 07:00:26 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036209280 1 Fri Nov 01 22:54:40 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036209293 1 Fri Nov 01 22:54:53 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036209310 1 Fri Nov 01 22:55:10 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036214125 1 Sat Nov 02 00:15:25 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036214139 1 Sat Nov 02 00:15:39 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036286121 1 Sat Nov 02 20:15:21 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036286139 1 Sat Nov 02 20:15:39 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077
    1036342518 1 Sun Nov 03 11:55:18 2002 halladaq-cat.jlab.org M Node up;1 17.1
    .0.58916864 6077