Sensors

Monitoring of sensors output is based on regexp. To be clear enought here an example:

Sensors output on my server:

        adt7463-i2c-0-2d
        Adapter: SMBus I801 adapter at 1480
        V1.5:        +3.23 V  (min =  +0.00 V, max =  +3.32 V)
        VCore:       +1.24 V  (min =  +1.10 V, max =  +1.49 V)
        V3.3:        +3.33 V  (min =  +2.80 V, max =  +3.78 V)
        V5:          +4.99 V  (min =  +4.25 V, max =  +5.75 V)
        V12:         +0.11 V  (min =  +0.00 V, max = +15.94 V)
        CPU_Fan:       0 RPM  (min =    0 RPM)
        fan2:       10671 RPM  (min = 8095 RPM)
        fan3:          0 RPM  (min =    0 RPM)
        fan4:          0 RPM  (min =    0 RPM)
        CPU Temp:    +69.5°C  (low  =  +2.0°C, high = +91.0°C)
        Board Temp:  +32.5°C  (low  =  +2.0°C, high = +83.0°C)
        Remote Temp: +31.2°C  (low  =  +2.0°C, high = +58.0°C)
        cpu0_vid:   +1.338 V

        adt7463-i2c-0-2e
        Adapter: SMBus I801 adapter at 1480
        V1.5:        +3.21 V  (min =  +0.00 V, max =  +3.32 V)
        VCore:       +1.28 V  (min =  +1.10 V, max =  +1.49 V)
        V3.3:        +3.32 V  (min =  +2.80 V, max =  +3.78 V)
        V5:          +4.95 V  (min =  +0.00 V, max =  +6.64 V)
        V12:         +0.11 V  (min =  +0.00 V, max = +15.94 V)
        CPU_Fan:    10843 RPM  (min = 8095 RPM)
        fan2:          0 RPM  (min =    0 RPM)
        fan3:       9642 RPM  (min = 8095 RPM)
        fan4:          0 RPM  (min =    0 RPM)
        CPU Temp:    +57.2°C  (low  =  +2.0°C, high = +91.0°C)
        Board Temp:  +35.2°C  (low  =  +2.0°C, high = +91.0°C)
        Remote Temp: +35.8°C  (low  =  +2.0°C, high = +58.0°C)
        cpu0_vid:   +1.338 V

Following the sensors kernel module load you could have more or less output than that. To monitor all sensors CPUs temperature on my server I need to add the following lines into sysusage.cfg:

        sensors:CPU Temp:75
        sensors:Board Temp:45
        sensors:Remote Temp:45

This will create 3 graphs based on lines matching 'CPU Temp', an other with lines matching 'Board Temp' and the last with lines matching 'Remote Temp'. As I have 2 CPUs for each graph there will be 2 values. You can not report more than 3 values per graph, this is hard coded into sysusage. So if you have more CPUs you will not see more than 3 values. Here it will sent alarm when temperature exceed the given values (75,45,45).

To monitor fan speed, I just add lines like this in the configuration file:

        sensors:fan2:11000:8095
        sensors:fan3:11000:8095

This whil create 2 graphs for fan 2 and fan 3. With an alarm sent when speed exceed 11000 RPM or is lower than 8095 RPM.

On my personal computer (/etc/sysconfig/lm_sensors => modprobe coretemp) sensors output is:

        coretemp-isa-0000
        Adapter: ISA adapter
        Core 0:      +53.0°C  (high = +78.0°C, crit = +100.0°C)

        coretemp-isa-0001
        Adapter: ISA adapter
        Core 1:      +50.0°C  (high = +78.0°C, crit = +100.0°C)

To monitor CPU temprature, I just add this line in my sysusage.cfg:

        sensors:Core:70

This will generate a graph with 2 graphed data for Core 0 and Core 1.