Do any known UPS's keep internal logs of events? I am currently using a slightly modified version if usbhid-ups to talk to a HP T/R2200 G2, which is internally a TrippLite UPS. The UPS is randomly turning off its output power, at intervals of once every week or two, even though during this failure it reports that input and output voltages are still around 248V (240V is nominal). The only recourse is to reboot the UPS. HP are sending a replacement unit as AFAICT it reports that everything is otherwise okay and so is obviously broken, but if there were some internal logs somewhere it would be useful to get access to them. This failure mode occurred the first time before any USB or serial cables were connected so I don't believe the failure is related to the (very alpha) nut ups driver I am using. After the first time I plugged one of the server PSU's into the mains, bypassing the UPS, so that it wouldn't down the server in the event of failure, and no messages were logged and the UPS continues reporting status (being graphed via mrtg). Thanks James
> > Do any known UPS's keep internal logs of events? I am currently usinga> slightly modified version if usbhid-ups to talk to a HP T/R2200 G2, > which is internally a TrippLite UPS. > > The UPS is randomly turning off its output power, at intervals of once > every week or two, even though during this failure it reports thatinput> and output voltages are still around 248V (240V is nominal). The only > recourse is to reboot the UPS. > > HP are sending a replacement unit as AFAICT it reports that everything > is otherwise okay and so is obviously broken, but if there were some > internal logs somewhere it would be useful to get access to them.I just noticed that upsmon wasn't running, which would explain the absence of anything useful in syslog. My question about internal logs still stands though. Thanks James
Citeren "James Harper" <james.harper at bendigoit.com.au>:> Do any known UPS's keep internal logs of events? I am currently using a > slightly modified version if usbhid-ups to talk to a HP T/R2200 G2, > which is internally a TrippLite UPS.MGE has a range of UPSes that can optionally be equipped with a Network Management Card (even my Evolution 650 is fitted with one). Besides offering remote monitoring through a build in HTTP server, it also reports events to a couple of log files.> The UPS is randomly turning off its output power, at intervals of once > every week or two, even though during this failure it reports that input > and output voltages are still around 248V (240V is nominal). The only > recourse is to reboot the UPS.First course of action, is to check the age of the batteries. Chances are that the UPS starts a quick battery test every two weeks (automatically), which is failing so quickly (immediately) that the UPS shuts down. This shouldn't happen, but we've seen this before on very old batteries that fail under load instantly. In that case, there may not be enough time to switch back on the AC mains and report a battery fault and instead the UPS shuts down. Best regards, Arjen -- Eindhoven - The Netherlands Key fingerprint - 66 4E 03 2C 9D B5 CB 9B 7A FE 7E C1 EE 88 BC 57
On Wed, 17 Sep 2008, James Harper wrote:> Do any known UPS's keep internal logs of events? I am currently using aI have an old Best Ferrups that keeps an internal log of events. I believe the company is now called Eaton, though I have no idea how good they are today. http://www.powerware.com/ =========================================================Chris Candreva -- chris at westnet.com -- (914) 948-3162 WestNet Internet Services of Westchester http://www.westnet.com/