[Nut-upsuser] Powerware 5110, SuSE10.1 & USB

Kjell Claesson kjell.claesson at telia.com
Thu Jun 8 11:42:22 UTC 2006

Hi Gary,
tor 2006-06-08 klockan 13:54 +1000 skrev Gary and Jane Pearce:
> Thank you Kjell,
> The permissions scripts (hotplug-ng) are missing from the SuSE 10.1 
> distribution. In the end I downloaded the sources to get the script I needed 
> then discovered your solution of adding the following lines:
> # Powerware - bcmxcp_usb
> SYSFS{idVendor}=="0592", SYSFS{idProduct}=="0002", MODE="660", GROUP="nut"
> in a file called:
> /etc/udev/rules.d/77-usbups.rules
> did the trick once I found the typo I managed to introduce from your post :-(

Yes i was wondering why it did not work for you.
> Its a shame the 10.1 docs still refer to hotplug that caused a lengthy 
> distraction. The above seems to be the only addition required to the standard 
> 10.1 distribution.

Well it is fairly new functions that the udev take over the hotplug and 
also coldplug functions. And also that the dev node have shifted 
from /proc/bus.. to /dev/bus.. for the libusb. 

> Now to get on with checking that it does its shut down the way its supposed 
> to ! 

Just one note on that. The 'shutdown_delay' you set in the ups.conf have
nothing to do with the run-time on battery.

shutdown_delay is how many minutes of UPS power remain once the low
battery (LB) alarm is given for the full rated load

On the 5110 you should get the 'battery_runtime' variable. This is the
estimated run-time before LowBattery on current load.
Or Estimated seconds until DCUV for the current load and state of charge
of the battery (even if not “On Battery”).

DCUV = DirectCurrentUnderVoltage (This should be possible in the future
to be set. ex: setting it to 1.75 signaling LB when the average voltage
is 1.75 per cell )

Say that you have 1200 on battery_runtime, it should run for about 
20 min before it signaling LB. When this happens you have OB LB and
the upsmon is issuing a shutdown of the machine. Now the machine
have shutdown_delay to go down. After the shutdown_delay the ups is 
powering off. So it must finished the shutdown scripts and unmounted
the partitions before it runs out.

I have got many questions on this so this is FYI.

To shutdown before LB, you need to use the AT ONBATT in upssched.conf.

Se the doc's shutdown.txt.


More information about the Nut-upsuser mailing list