blob: 19900a8fe6794b1f9df2354c2f7126b26107146e [file] [log] [blame]
R.Marek@sh.cvut.cz828621d2005-05-26 12:42:29 +00001Introduction
2------------
3
4Most mainboards have sensor chips to monitor system health (like temperatures,
5voltages, fans speed). They are often connected through an I2C bus, but some
6are also connected directly through the ISA bus.
7
8The kernel drivers make the data from the sensor chips available in the /sys
Jean Delvare0d0001d2006-04-25 14:23:01 +02009virtual filesystem. Userspace tools are then used to display the measured
10values or configure the chips in a more friendly manner.
R.Marek@sh.cvut.cz828621d2005-05-26 12:42:29 +000011
12Lm-sensors
13----------
14
Jean Delvare0d0001d2006-04-25 14:23:01 +020015Core set of utilities that will allow you to obtain health information,
R.Marek@sh.cvut.cz828621d2005-05-26 12:42:29 +000016setup monitoring limits etc. You can get them on their homepage
17http://www.lm-sensors.nu/ or as a package from your Linux distribution.
18
19If from website:
Jean Delvare0d0001d2006-04-25 14:23:01 +020020Get lm-sensors from project web site. Please note, you need only userspace
21part, so compile with "make user" and install with "make user_install".
R.Marek@sh.cvut.cz828621d2005-05-26 12:42:29 +000022
23General hints to get things working:
24
250) get lm-sensors userspace utils
Jean Delvare0d0001d2006-04-25 14:23:01 +0200261) compile all drivers in I2C and Hardware Monitoring sections as modules
27 in your kernel
R.Marek@sh.cvut.cz828621d2005-05-26 12:42:29 +0000282) run sensors-detect script, it will tell you what modules you need to load.
293) load them and run "sensors" command, you should see some results.
304) fix sensors.conf, labels, limits, fan divisors
315) if any more problems consult FAQ, or documentation
32
Jean Delvare0d0001d2006-04-25 14:23:01 +020033Other utilities
34---------------
R.Marek@sh.cvut.cz828621d2005-05-26 12:42:29 +000035
36If you want some graphical indicators of system health look for applications
37like: gkrellm, ksensors, xsensors, wmtemp, wmsensors, wmgtemp, ksysguardd,
38hardware-monitor
39
40If you are server administrator you can try snmpd or mrtgutils.