[Nut-upsuser] upsmon shutdown based on Time since power fail.

Richard Chapman rchapman at aardvark.com.au
Wed May 20 10:11:21 UTC 2009

For various reasons - I have been trying to get my Desktops and/or 
servers to shut-down a fixed time after a power fail - or better still a 
fixed time - or a low battery whichever comes first.
I note in my upsc:

*> upsc belkinusb*
battery.charge: 100
battery.charge.low: 30
battery.charge.warning: 30
battery.runtime: 120
battery.type: PbAc
battery.voltage: 27.3
battery.voltage.nominal: 24
driver.name: usbhid-ups
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.2.0-
driver.version.data: Belkin HID 0.1
driver.version.internal: 0.30
input.frequency: 50.0
input.frequency.nominal: 50
input.sensitivity: normal
input.transfer.high: 264
input.transfer.high.max: 269
input.transfer.high.min: 259
input.transfer.low: 187
input.transfer.low.max: 192
input.transfer.low.min: 182
input.voltage: 247.4
input.voltage.nominal: 230
output.frequency: 50.0
output.voltage: 248.4
ups.beeper.status: enabled
ups.delay.restart: 0
ups.delay.shutdown: 0
ups.firmware: 2
ups.load: 52
ups.load.high: 100
ups.mfr: Belkin 
ups.model: UPS
ups.power.nominal: 1200
ups.productid: 0912
ups.serial: 01          
ups.status: OL CHRG
ups.test.result: Done and passed
ups.type: offline
ups.vendorid: 050d

the battery runtime is set to 120 - though the UPS runs much longer than 
120 seconds on battery. I am therefore not sure what this parameter means.

Moreover upsrw shows:

*> upsrw belkinusb*
Input power sensitivity
Value: normal

High voltage transfer point
Value: 264

Low voltage transfer point
Value: 187

UPS beeper status
Value: enabled

Which I think means these are the only parameters I can change in the UPS.

Is there another parameter somewhere - probably in upsmon - which would 
allow me to specify a shut-down after (say) 3 minutes running on battery regardless of battery status?

One of the reasons for this request is that I have a desktop and a server running from the same UPS - 
and would like to ensure the desktop shuts down (or better still hibernates) before the server shuts down.

If there is some documentation somewhere covering this question - please feel free to point me to the documentation.



More information about the Nut-upsuser mailing list