oli.patane@LIGO.ORG - posted 17:39, Tuesday 19 December 2023 - last comment - 23:11, Tuesday 19 December 2023(74925)
Sitting in DOWN for SEI Corrective Maintenance
Currently DOWN and in Corrective Maintanence due to an ADC crash on h1seib1 that caused our last lockloss(74924).
[Dave, Jonathan, Erik, Oli]
GDS TP screen showed ADC 4 with the timeout.
Some cards were missing from lspci, We shut the front end off powered off the AI chasses and cycled power on the IO chassis. After bringing the front end back, all cards appeared normal, so we turned the AI chasses back on and resumed operation.
I will prep a spare ADC in case ADC 4 permenantly fails, but ADC timeouts have signaled DAC or Adnaco failure as well.
I opened (and then marked as Resolved) an FRS ticket: FRS#29998