Reports until 17:17, Wednesday 10 August 2016
H1 CDS (DAQ)
david.barker@LIGO.ORG - posted 17:17, Wednesday 10 August 2016 (29003)
DAQ change to add new vacuum channels, tried to get h1fw0 to write trend frame files

The new HAM6 vacuum gauge channels were added to H0EDCU_VAC.ini and the DAQ was restarted.

We took this opportunity to configure h1fw0 to write trend frame files again. This made fw0 very unstable, crashing before it could write out a second trend file (on the 10-minute mark). I reverted back to fw0 only writing the 64second frame files and it became stable again.

here is the current configuration:

fw0 writing only science and commissioning frames. In past 14 days has not restarted itself.

fw1 writing all frames (sci, com, sec, min). In past 14 days has restarted 3 times.

Jonathan is working on adding further diagnostics to daqd to help with this investigation. For now we will keep with this stable configuration, we have zero full frame loss and minimal trend frame loss.