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Detector Operation (Operations Report)
gherardini - 20:41 Monday 07 September 2026 (69705) Print this report
Operator Report - Afternoon shift

In the first part of the shift the injection team worked on the input power reduction (#69702) then the ITF lock recovery started; the work went on without any major problem with the lock recovered up to CARM_OFFSET_STEP_3_OF_3 state (#69704), the work stopped at 18:30UTC, we left the cavities locked on the infrared.

Sub-system reports

DAQ
Another event of data loss form suspensions happened at around 17:30UTC I recovered the data with at stop and restart of SUSP_Fb process.

Comments to this report:
viret - 11:48 Wednesday 09 September 2026 (69717) Print this report
Regarding the DAQ losses, I prepared a small set of slides explaining how to solve the issue without switching ON/OFF the process (in this case SUSP_Fb). This might be necessary in some case. The document is accessible in the DAQ wiki:

https://wiki.virgo-gw.eu/pub/Commissioning/DAQ/WebHome/HowToSolveFbFFEissue.pdf
masserot - 14:29 Tuesday 13 October 2026 (69911) Print this report

Attached to this entry,  the details of the TolmFrameBuilder servers and the Imaging servers related to this event .

  • all the TolmFrameBuilder servers running with a frame dt of 0.2s complains to not be able to sent theirs frames to the FbmFFE  server running on olserver52
    • the FbmFFE server reports to not receive any input frame during 21s
    • Most of the TolmFrameBuilder servers succeeded to return in theur standard running conditions, except the SUSP_Fb one where some actions were mandatory
  • all the Imaging servers and the TolmFrameBuilder servers running with a frame dt of 1s complained to not be able to sent theirs frames to the FbmMain  server running on olserver52
    • the FbmMain server  reports to not receive any input frame during 26s

It's difficult to distantly if the issue is due to the network or a temporary overload of the main DAQ host, olserver52

Non-image files attached to this comment
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