Reports until 08:18, Monday 08 October 2018
H1 CDS
david.barker@LIGO.ORG - posted 08:18, Monday 08 October 2018 - last comment - 12:21, Monday 08 October 2018(44387)
h1susey computer remotely reset, models running again

I have remotely reset the h1susey computer. Procedure was: disable the Dolphin IXS600 port h1susey is connected to and then issue a 'chassis power reset' command via the remote management IPMI port.

The whole process only took about 5 minute to complete, so I was surprised to see the SWWD on SEI-EY had tripped (should take 10 mins to trip). Perhaps this was tripped before the reset?

Comments related to this report
david.barker@LIGO.ORG - 08:23, Monday 08 October 2018 (44388)
Link

h1susey console before reboot

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betsy.weaver@LIGO.ORG - 08:44, Monday 08 October 2018 (44392)
Link

FRS ticket 11611.

david.barker@LIGO.ORG - 12:21, Monday 08 October 2018 (44405)
Link

The reboot of the h1susey computer to the point where the h1iopsusey model was running again took over 5 minutes, which caused the software-watchdogs on the seismic system (h1iopseiey) to trip, which in turn zeroed all the DAC drives for this front end.

We should perhaps reconsider the SWWD receivers on h1iopseiey. Two options are:

  • extend the trip time to more than 5 minutes (keeping within the requirements limit that the trip happens within 10 minutes of SUS ring-up)
  • not trip the SEI if the SUS IPC channels go away