hardware sensors monitor
utility retrieves sensor monitoring
data like fan speed, temperature, voltage and RAID logical disk status from
subtree. When the state of any
monitored sensor changes, an alert is triggered. Every alert logs a message to
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
, indicating whether the sensor is within
or is exceeding its limits.
Limit and command values for a particular sensor may be specified in the
configuration file. This file is reloaded upon receiving
The options are as follows:
- 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.
- Do not daemonize. If this option is specified,
sensorsd will run in the foreground.
- Read configuration from
file instead of the default configuration
- Configuration file for
program first appeared in
Certain sensors may erratically flip status from time to time. To guard against
false reports, sensorsd
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.