NAME
sensorsd
—
hardware sensors monitor
SYNOPSIS
sensorsd |
[-d ] [-c
check] [-f
file] |
DESCRIPTION
The sensorsd
utility retrieves sensor
monitoring data like fan speed, temperature, voltage and RAID logical disk
status from the sysctl(2)
hw.sensors subtree. When the state of any monitored
sensor changes, an alert is triggered. Every alert logs a message to
syslog(3) using the
daemon
facility. Optionally, an alert can be
configured to execute a command.
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
receiving SIGHUP
.
The options are as follows:
-c
check- Check sensors every check seconds. The default is 20. The state of a sensor is not yet regarded as changed when a check returns a new state for the first time, but only when the two subsequent checks both confirm the new state.
-d
- Do not daemonize. If this option is specified,
sensorsd
will run in the foreground. -f
file- Read configuration from file instead of the default configuration file /etc/sensorsd.conf.
FILES
- /etc/sensorsd.conf
- Configuration file for
sensorsd
.
SEE ALSO
HISTORY
The sensorsd
program first appeared in
OpenBSD 3.5.
CAVEATS
Certain sensors may erratically flip status from time to time. To
guard against false reports, sensorsd
requires two
confirmations before reporting a state change. 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 by default
about 60 seconds after it is started.