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    User name R. Michaels

    Log entry time 20:08:08 on March 18, 2007

    Entry number 196477

    This entry is a followup to: 196445

    keyword=voice alarms turned off for the night

    My voice alarms about "frozen IOC" are turned off for the night. I killed all related processes.
    There were unfortunately many false alarms. I was keeping a log file of the data and it
    appears the EPICS variables we are spying were indeed sometimes "Invalid" (hence the alarm)
    but then would recover to a normal value. Typically they would be normal for hours then
    abormal for several minutes, but according to the shift workers the IOC was NOT frozen
    (magnets stable but fluctuating a tiny amount).

    Conclusion: This alarm is false -- we need a more reliable guide for whatever "frozen IOC"
    means.

    -- Bob

    A copy of this log entry has been emailed to: jones@jlab.org,aniol@jlab.org,saha@jlab.org