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1 | Introduction | ||
2 | ------------ | ||
3 | |||
4 | Most mainboards have sensor chips to monitor system health (like temperatures, | ||
5 | voltages, fans speed). They are often connected through an I2C bus, but some | ||
6 | are also connected directly through the ISA bus. | ||
7 | |||
8 | The kernel drivers make the data from the sensor chips available in the /sys | ||
9 | virtual filesystem. Userspace tools are then used to display or set or the | ||
10 | data in a more friendly manner. | ||
11 | |||
12 | Lm-sensors | ||
13 | ---------- | ||
14 | |||
15 | Core set of utilites that will allow you to obtain health information, | ||
16 | setup monitoring limits etc. You can get them on their homepage | ||
17 | http://www.lm-sensors.nu/ or as a package from your Linux distribution. | ||
18 | |||
19 | If from website: | ||
20 | Get lmsensors from project web site. Please note, you need only userspace | ||
21 | part, so compile with "make user_install" target. | ||
22 | |||
23 | General hints to get things working: | ||
24 | |||
25 | 0) get lm-sensors userspace utils | ||
26 | 1) compile all drivers in I2C section as modules in your kernel | ||
27 | 2) run sensors-detect script, it will tell you what modules you need to load. | ||
28 | 3) load them and run "sensors" command, you should see some results. | ||
29 | 4) fix sensors.conf, labels, limits, fan divisors | ||
30 | 5) if any more problems consult FAQ, or documentation | ||
31 | |||
32 | Other utilites | ||
33 | -------------- | ||
34 | |||
35 | If you want some graphical indicators of system health look for applications | ||
36 | like: gkrellm, ksensors, xsensors, wmtemp, wmsensors, wmgtemp, ksysguardd, | ||
37 | hardware-monitor | ||
38 | |||
39 | If you are server administrator you can try snmpd or mrtgutils. | ||