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SENSORSD(8)	       DragonFly System Manager's Manual	   SENSORSD(8)

NAME

sensorsd -- hardware sensors monitor

SYNOPSIS

sensorsd [-d] [-c check]

DESCRIPTION

The sensorsd utility retrieves sensor monitoring data like fan speed, temperature and voltage via sysctl(3). When the state of any monitored sensor changes, an alert is sent using syslog(3) and a command, if speci- fied, is executed. By default, sensorsd monitors status changes on all sensors that keep their state, thus sensors that automatically provide status do not require any additional configuration. In addition, for every sensor, no matter whether it automatically provides its state or not, custom low and high limits may be set, so that a local notion of sensor status can be computed by sensorsd, indicating whether the sensor is within or is exceeding its limits. Limit and command values for a particular sensor may be specified in the sensorsd.conf(5) configuration file. This file is reloaded upon receiv- ing SIGHUP. The options are as follows: -c check Check sensors every check seconds. The shortest reporting period for state changes will be three times this value. The default is 20. -d Do not daemonize. If this option is specified, sensorsd will run in the foreground.

FILES

/etc/sensorsd.conf Configuration file for sensorsd.

SEE ALSO

sysctl(3), syslog(3), sensorsd.conf(5), syslogd(8)

HISTORY

The sensorsd program first appeared in OpenBSD 3.5 and was imported into DragonFly 1.11.

CAVEATS

Certain sensors may flip status from time to time. To guard against false reports, sensorsd implements a state dumping mechanism. However, this inevitably introduces an additional delay in status reporting and command execution, e.g. one may notice that sensorsd makes its initial report about the state of monitored sensors not immediately, but about 60 seconds after it is started. DragonFly 3.9 October 19, 2008 DragonFly 3.9