Reports until 12:42, Monday 28 April 2025
H1 DAQ
jonathan.hanks@LIGO.ORG - posted 12:42, Monday 28 April 2025 (84150)
WP 12469 cont., Identical raw, second trend, and minute trend frames between new frame writer and old frame writers
h1daqfw2 is now producing identical raw, second trend, and minute trend frames to h1daqfw[01].  The issues mentioned in https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=84132 have been resolved.

There are times where we expect there to be mismatches.  These are generally when data is missing, the daqd may replay recent data, where the new frame writer will write zeros.

We will continue tests on the frame writer, including software updates.  The next test is to watch the behavior of h1daqfw2 when h1daqfw0 & h1daqfw1 have a restart.  It is designed to automatically adjust its channel list and have no gaps in the frames and need no restart to accommodate the changes.
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