aLIGO LHO Logbook

H1 CDS (ISC, SEI, SUS)

jeffrey.kissel@LIGO.ORG - posted 11:03, Tuesday 23 May 2023 - last comment - 14:01, Tuesday 23 May 2023(69826)

Prep for Corner Station to End Station Dolphin Card Replacement -- SEI / SUS Put in their 'Ready for potential computer crash' mode

J. Kissel, E. von Reis, T. Shaffer,
WP 11219

In prep for the suddenly needed replacement of the corner-station to end-station "CDS RFM" dolphin card, which has a non-zero risk of crashing all end-station models, we've 
    - Accepted the ETMX / TMSX, ETMY / TMSY alignment sliders in the SDF system
    - Brought the ETMX / TMSX, ETMY / TMSY SUS guardians to DAMPED
    - Brought the EX and EY SEI guardian managers to ISI_DAMPED_HEPI_OFFLINE

Comments related to this report

jeffrey.kissel@LIGO.ORG - 11:34, Tuesday 23 May 2023 (69832)

Link

Good thing! As feared, EX and EY SEI, SUS, and ISC end-station computers crashed as a result of this work.

jeffrey.kissel@LIGO.ORG - 14:01, Tuesday 23 May 2023 (69849)ISC, SEI

Link

See discussion in of the dolphin crash in LHO:69843.

see the unexpected consequence of the crash -- the ISI lost settings for newish belnd filter fader system in LHO:69835.