Configure CyberPower UPS Monitoring on Linux

Sonora Communications, Inc.

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Configure CyberPower UPS Monitoring on Linux

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CyberPower PowerPanel for Linux

Tested with SME Server 7.3 and a CyberPower CP1500AVRT UPS.


Connect the included USB cable to UPS. We could not get it to work with the serial cable.

Download the PowerPanel software to the machine where the UPS is connected:


Unpack and install:

tar -xzvf powerpanel-1.1.tar.gz cd powerpanel-1.1 ./

Check communications:

pwrstat -status
pwrstat -config

Verify startup:

chkconfig --list |grep pwr

For SME Server only which uses runlevel 7:

ln -s /etc/rc.d/init.d/pwrstatd /etc/rc7.d/S93pwrstatd


We don't want the server to shut down immediately upon power failure...we want to wait until the battery gets low before we actually run the shutdown command.

Edit the PowerPanel configuration file:

vi /etc/pwrstatd.conf

And change:

powerfail-shutdown = no #we want to shut down the UPS when the battery gets low, not when the power fails
shutdown-sustain = 300 #set this to a little longer than it takes to shut your server down
lowbatt-threshold = 15 #don't run the battery completely dead

Restart the service:

/etc/init.d/pwrstatd restart


service pwrstatd restart

Commands that run upon power-fail and low-battery events are also specified in the /etc/pwrstatd.conf configuration file. By default, it specifies:




Last Updated on Monday, 15 December 2008 22:02