At 00:27:47 Sat 27 Sep 2025 PDT we got a VACSTAT alarm for a HAM1 sensor glitch.

The gauge read a pressure increase from 1.20e-07 to 3.61e-07 as a square wave for 2 seconds. VACSTAT slope just tripped at 1.0e-09, the deta-p did not trip as its level had been increased to 3.0e-07 to prevent such false positive alarms.

I reset the alarm by restarting the vacstat_ioc.service on cdsioc0 at 09:20.