[Nut-upsuser] How to get started (Windows)
roger at rogerprice.org
Sat Sep 10 18:28:35 UTC 2016
On Thu, 8 Sep 2016, Jeff Bowman wrote:
> That said, is there a way to manually poll the driver for UPS/power line
> status? I ask because I can foresee a scenario such as this:
> So I'd like to be able to remote in and check the status to make sure
> everything is OK. If not, then I can manually run my shutdown
> script/process and start the cycle all over again. (Note: running 'upsc
> ups at localhost' echoes only a blank line to the screen, as do both
> 'upsmon' and 'upsd.')
Something is wrong here. Is the daemon upsd running? On a Unix/Linux
system, the command ps aux | grep ups gives the report
upsd 3196 0.0 0.0 13228 880 ? Ss août30 2:14 /usr/lib/ups/driver/usbhid-ups -a Eaton-66781
upsd 3200 0.0 0.0 17560 736 ? Ss août30 0:49 /usr/sbin/upsd -u upsd
root 3203 0.0 0.0 19432 664 ? Ss août30 0:00 /usr/sbin/upsmon
upsd 3204 0.0 0.0 19856 1612 ? S août30 0:41 /usr/sbin/upsmon
I don't have any Windows boxes, but I guess there is a similar command on
Windows. What does it show?
Is it possible to ssh into the system which runs NUT, and then run command
> So to confirm my understanding: You're stating that I'll want to do this
> via NOTIFYFLAG ONBATT SYSLOG+EXEC and NOTIFYCMD (no WALL in Windows),
> using that combination to run my script/process and skipping SHUTDOWNCMD
Remember that I don't use windows or the LB status so my suggestion is
only a suggestion. Above all, you need to test thoroughly with your
system and your UPS.
Given that a perfect data set is mission critical for you, I would
recommend having a test rig where you can check that you can handle
wall power return at every phase of NUT action.
> Sounds good. Next up: how to then send the 'delayed shutdown' command to
> the UPS hardware itself? Does the driver automatically handle that?
The command upsdrvctl shutdown does this. See man upsdrvctl.
> I'd like everything to occur shortly after the OB signal, so as to
> preserve battery as much as possible.
"Shortly after" means using timers. If you want to preserve the battery
charge, but not use timers, you need to use a combination of OB and LB and
set your LB level high using a command such as
upsrw -s battery.charge.low=60 -u upsmaster -p sekret my-ups
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