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Message ID: 15695     Entry time: Wed Dec 2 17:54:03 2020
Author: gautam 
Type: Update 
Category: CDS 
Subject: FE reboot 

As discussed at the meeting, I commenced the recovery of the CDS status at 1750 local time.

  • Started by attempting to just soft-restart the c1rfm model and see if that fixes the issue. It didn't and what's more, took down the c1sus machine.
  • So hard reboots of the vertex machines was required. c1iscey also crashed. I was able to keep the EX machine up, but I soft-stopped all the RT models on it.
  • All systems were recovered by 1815. For anyone checking, the DC light on the c1oaf model is red - this is a "known" issue and requires a model restart, but i don't want to get into that now and it doesn't disrupt normal operation.

Single arm POX/POY locking was checked, but not much more. Our IMC WFS are still out of service so I hand aligned the IMC a bit, IMC REFL DC went from ~0.3 to ~0.12, which is the usual nominal level.

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