>> last night we had what looked like a power spike and 3 machines plugged >> into 2 Eaton UPS went down instantly. I heard the click the UPS makes when >> it shuts the load on the ports and then shuts itself down (ie same thing if >> I simulate with upsmon -fsd). The machines instantly came back, there was no >> actual downtime, and the machine next to them which is not on the UPS never >> went down. >> >> This to me suggests some kind of overvoltage protection or something where >> the UPS decided to shut down the load, but I'm quite puzzled by it as I'd >> expect the UPS to actually shield the machines from it and certainly not >> turn something off brutally like that..
I'm going to CC Arnaud's work address just in case they have any additional information at Eaton, but for a variety of reasons, NUT is not very strong when it comes to post-mortem analysis of events. If the system running the NUT driver did not have a chance to log the event before power went down, it is difficult to ascertain what happened. Is there an "upsc" dump for these units in one of the other email/GitHub threads? (Feel free to redact all or part of the serial number.) I don't know of any particular combination of settings which might cause an immediate power-down for over-voltage, but it can't hurt to check. Arno: do these models keep an event log in EEPROM? Didn't see anything in the MGE OPS protocol library on the NUT website, but I haven't had a chance to poke around the Eaton website. -- - Charles Lepple _______________________________________________ Nut-upsuser mailing list Nut-upsuser@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/nut-upsuser
