A client of mine has an APC Back-UPS 350 model (USB connected). His
office had a power incident yesterday, where there was an interruption
of about 30 seconds. During that time, the server shut down. As soon
as it went on battery, the daemon initiated a shutdown. In checking it
today, I see the ups.delay.shutdown setting is -1. I tried to adjust
it, but could not do so.
What does the "-1" setting mean? I Googled, but couldn't find
anything
relevant. Am I correct in assuming it is this setting that caused the
immediate shutdown? Today, the UPS shows a load of 35, via the upsc
command, so it doesn't appear it was overloaded.
Thanks,
Des
--
Des Dougan, Principal
Dougan Consulting Group Inc.
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Email: des at DouganConsulting dot com
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On Wed, Feb 25, 2009 at 19:13, Des Dougan <des at douganconsulting.com> wrote:> A client of mine has an APC Back-UPS 350 model (USB connected). His > office had a power incident yesterday, where there was an interruption > of about 30 seconds. During that time, the server shut down. As soon > as it went on battery, the daemon initiated a shutdown. In checking it > today, I see the ups.delay.shutdown setting is -1. I tried to adjust > it, but could not do so. > > What does the "-1" setting mean? I Googled, but couldn't find anything > relevant. Am I correct in assuming it is this setting that caused the > immediate shutdown? Today, the UPS shows a load of 35, via the upsc > command, so it doesn't appear it was overloaded.However you may find that it almost immediately hit low battery (LB) due to an aged and failing battery - a not uncommon problem. You need to do a test to find out if that is the problem. The real world test is, of course, to pull the power from the UPS (while watching the charge of the UPS). More practically is to move everything off the UPS and plug in a load (one or 2 100W light bulbs) and do the same test, but not risking the server ;) You'll find chapter and verse on this in the list archive. -- Please keep list traffic on the list. Rob MacGregor Whoever fights monsters should see to it that in the process he doesn't become a monster. Friedrich Nietzsche
Citeren Des Dougan <des op DouganConsulting.com>:> A client of mine has an APC Back-UPS 350 model (USB connected). His > office had a power incident yesterday, where there was an interruption > of about 30 seconds. During that time, the server shut down. As soon > as it went on battery, the daemon initiated a shutdown. In checking it > today, I see the ups.delay.shutdown setting is -1. I tried to adjust > it, but could not do so. > > What does the "-1" setting mean?It means no shutdown delay value has been configured. I already wrote that we'll need the NUT version and OS to determine what *exactly* is going on.> I Googled, but couldn't find anything > relevant. Am I correct in assuming it is this setting that caused the > immediate shutdown?No, the decision to shut the system down is unrelated to the ups.delay.shutdown value. Most likely (but see the note above), the UPS firmware is broken and it signals low battery right after the power is lost. NUT has no other option than to initiate system shutdown in that case. Note that the Back-UPS 350 is a *very* small entry level UPS that really shouldn't be used for anything other than small desktop systems.> Today, the UPS shows a load of 35, via the upsc > command, so it doesn't appear it was overloaded.Maybe, maybe not. The only way to conclusively tell why NUT decided to shutdown the system is to run the driver in debug mode. It will probably confirm the above. Best regards, Arjen -- Please keep list traffic on the list