Nut upsuser - May 2012 - Question regarding Tripp-Lite omnismart 1050 and Nut

Hey all,

I have a omnismart 1050 which i've got working under nut 2.2.2. It 
starts fine, and seems to poll fine.

The only thing that is throwing me for a loop is my UPS is reporting 
that battery.runtime isn't supported. Will this affect upsmon's ability 
to shutdown my system in a power outage? I can whip up a simple bash 
script to take care of it but ideally I'd like to work within the nut 
framework.

Here is some output for you.

[root at server ups]# upsc ups
battery.charge: 100
battery.test.status: Battery OK
battery.voltage: 14.44
battery.voltage.nominal: 18
driver.name: tripplite_usb
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.2.2
driver.version.internal: 0.11.1
input.voltage: 102.63
input.voltage.nominal: 120
output.voltage: 118.0
ups.debug.load_banks: 0
ups.debug.V: 31 30 33 30 58 58 0d '1030XX.'
ups.delay.shutdown: 64
ups.firmware: F0957.B
ups.firmware.aux: protocol 2001
ups.mfr: Tripp Lite
ups.model: OMNISMART1050
ups.power.nominal: 1050
ups.status: OL
[root at server ups]# upsc ups battery.runtime
Error: Variable not supported by UPS

twhitney at clearbearing.com wrote, On 5/15/2012 8:34
AM:
> Hey all,
>
> I have a omnismart 1050 which i've got working under nut 2.2.2. It 
> starts fine, and seems to poll fine.
>
> The only thing that is throwing me for a loop is my UPS is reporting 
> that battery.runtime isn't supported. Will this affect upsmon's 
> ability to shutdown my system in a power outage? I can whip up a 
> simple bash script to take care of it but ideally I'd like to work 
> within the nut framework.
I have a Tripp-lite OMNISM1000USB, their own software didn't report a 
runtime, it simply shut down the PC after a set amount of time (2-5min). 
It also didn't show load, so a watt meter was needed to determine that.

Using the runtime graphs on Tripp-Lite's site, you can verify you have 
enough time, but you need to be conservative to account for aging batteries.

I think NUT can take care of the scheduling (running shutdown after X 
minutes) based on a powerfail event.

On May 15, 2012, at 11:34 AM, twhitney at clearbearing.com wrote:
> ups.status: OL
This is the only line that upsmon looks at. The UPS makes the call as to when
the battery is low, and hopefully it has an internal runtime estimate. Often,
though, that estimate is often not exposed over the protocol on less expensive
models.

As Kris mentioned, you can instead trigger a shutdown after a certain number of
minutes on battery, but that has its own issues.

-- 
Charles Lepple
clepple at gmail