NAME

SYNOPSIS

DESCRIPTION

To use the upsdaemon you must posses the qualified serial, device in kernel (sio).

The device is assumed to be /dev/cuad0 by default.

UpsDaemon: The program monitors the serial port, keeys DTR (Data Terminal Ready) raised and RTS (Request To Send) lowered. When the upsdaemon sees the RNG high, runs the upsdaemon-alerts (powerfail warning) and reports failure to syslog. If the power failure continued for 5 minutes (defined), the upsdaemon runs the upsdaemon-alerts (down), reports to syslog and makes the UPS to sleep by RTS. The power recovered within 5 minutes, the upsdaemon runs the upsdaemon-alerts (recovery) and continues to monitor the serial port for another powerfilure. In case the batter low is observed, the upsdaemon runs the upsdaemon-alerts (emergency shutdown now) immediately, reports to syslog and makes the UPS to sleep.

FILES

-battery

Power failure warning Shell: A shell-script to inform users the power goes out and the system will be down soon. It generates log in: (/var/log/upsdaemon-alerts.log)

-down

Shutdown Shell: A shell-script to shutdown the system cleanly. Its generates log in: (/var/log/upsdaemon-alerts.log)

-failed

Emergency shutdown Shellt: A shell-script to execute emergency halt for battery power failing. Its generates log in: (/var/log/upsdaemon-alerts.log)

-recovery

Power recovery Shell: A shell-script to inform users the power has been restored and system shutdown was canceled. Its generates log in: (/var/log/upsdaemon-alerts.log)

Starting upsdaemon: /usr/local/etc/rc.d/upsdaemon

EXAMPLE

$ upsdaemon /dev/cuad0

The upsdaemon port is specified to be the serial port2 /dev/cuad1 using command argument.

$ upsdaemon /dev/cuad1

OTHER INFO

SEE ALSO

AUTHORS