Not trying to be presumptuous but did your APC UPS need recalibrated?<br>There is (it seems) a little known procedure for recalibration when a new battery replaces an old one, especially when the old ones run time has dropped significantly.<br>
IIRC, you need to cycle/run them on 3/4 load down to shutdown 3 times on a new battery to reset them. I used a 500W Halogen workshop lamp on one with full charge.<br>First time it only lasted 5 minutes. Second time after charging much longer, third time 29 minutes on the load. Or maybe forth time.<br>
I found the procedure somewhere online some years ago so sorry for the lack of reference.<br>YRMV, but I've found the ol' APC's sometimes have more life in them yet.<br>Random switching to battery shouldn't shut down the server straight away unless the UPS is telling the software its less than 5% to go (and of course you can set that)<br>
I've always used apcupsd however.<br>And the dynalink ups's seem quite acceptable, so rejuvenating and old ups might not be everyone's cup of tea.<br><br>Barry<br><br><div class="gmail_quote">On 14 January 2011 19:53, Robin Gilks <span dir="ltr"><<a href="mailto:g8ecj@gilks.org">g8ecj@gilks.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><br>
> Greetings all<br>
><br>
> I've just replaced (or at least trying to!!) the UPS on my backend. My<br>
> preference is to have all those disks let down carefully in the event of a<br>
> power failure:)<br>
><br>
> I've got a Dynamix 1700 that uses a USB connection back to the PC. I've<br>
> tried NUT which always worked fine with my APC UPS but no go with this<br>
> one.<br>
><br>
> I've also tried the included software as well but that wants to talk to a<br>
> serial port on the UPS - not a lot of good when its a USB port!!<br>
<br>
Well, if you bash your head against the wall for long enough you either<br>
get a headache or a solution - I got the latter!!<br>
<br>
The included software burst into life when I used the virtual device name<br>
of 'hid' which at least proved everything worked.<br>
<br>
I then hunted about until I found a patch for the blazer_usb NUT driver<br>
which seems to have solved pretty much all the problems except I can't<br>
read the remaining battery life from the UPS. The supplied software can so<br>
I guess I'll have to get a USB tracer installed and see what goes on.<br>
<br>
I haven't played with the NUT config for several years (my Gentoo servers<br>
tend to have a looooong lifetime) but I recall that it can do a shutdown<br>
after a set period of time. Provided the server shuts down before the UPS<br>
I'm happy!!<br>
<br>
To reiterate the story of the existing APC UPS - its on its way out and<br>
its NOT a battery problem. They used to last 2-3 years, now I'm lucky if I<br>
get 3 months and it does random switches to battery now as well (which of<br>
course shuts down the server). Its running at 50% load these days rather<br>
than the 60% load of back in the AMD Thunderbird CPU days so if anything<br>
it should be going better, not worse :(<br>
<br>
Cheers all for the feedback though...<br>
<br>
<br>
--<br>
Robin Gilks<br>
<br>
<br>
<br>
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</blockquote></div><br><br clear="all"><br>-- <br><br><div style="text-align: left;">Barry Clearwater<br></div>Email: <a href="mailto:barryc@bcsystems.co.nz" target="_blank">barryc@bcsystems.co.nz</a><br><br><br><br>