| R.Marek@sh.cvut.cz | 828621d | 2005-05-26 12:42:29 +0000 | [diff] [blame] | 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 |
| Jean Delvare | 0d0001d | 2006-04-25 14:23:01 +0200 | [diff] [blame] | 9 | virtual filesystem. Userspace tools are then used to display the measured |
| 10 | values or configure the chips in a more friendly manner. |
| R.Marek@sh.cvut.cz | 828621d | 2005-05-26 12:42:29 +0000 | [diff] [blame] | 11 | |
| 12 | Lm-sensors |
| 13 | ---------- |
| 14 | |
| Jean Delvare | 0d0001d | 2006-04-25 14:23:01 +0200 | [diff] [blame] | 15 | Core set of utilities that will allow you to obtain health information, |
| R.Marek@sh.cvut.cz | 828621d | 2005-05-26 12:42:29 +0000 | [diff] [blame] | 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: |
| Jean Delvare | 0d0001d | 2006-04-25 14:23:01 +0200 | [diff] [blame] | 20 | Get lm-sensors from project web site. Please note, you need only userspace |
| 21 | part, so compile with "make user" and install with "make user_install". |
| R.Marek@sh.cvut.cz | 828621d | 2005-05-26 12:42:29 +0000 | [diff] [blame] | 22 | |
| 23 | General hints to get things working: |
| 24 | |
| 25 | 0) get lm-sensors userspace utils |
| Jean Delvare | 0d0001d | 2006-04-25 14:23:01 +0200 | [diff] [blame] | 26 | 1) compile all drivers in I2C and Hardware Monitoring sections as modules |
| 27 | in your kernel |
| R.Marek@sh.cvut.cz | 828621d | 2005-05-26 12:42:29 +0000 | [diff] [blame] | 28 | 2) run sensors-detect script, it will tell you what modules you need to load. |
| 29 | 3) load them and run "sensors" command, you should see some results. |
| 30 | 4) fix sensors.conf, labels, limits, fan divisors |
| 31 | 5) if any more problems consult FAQ, or documentation |
| 32 | |
| Jean Delvare | 0d0001d | 2006-04-25 14:23:01 +0200 | [diff] [blame] | 33 | Other utilities |
| 34 | --------------- |
| R.Marek@sh.cvut.cz | 828621d | 2005-05-26 12:42:29 +0000 | [diff] [blame] | 35 | |
| 36 | If you want some graphical indicators of system health look for applications |
| 37 | like: gkrellm, ksensors, xsensors, wmtemp, wmsensors, wmgtemp, ksysguardd, |
| 38 | hardware-monitor |
| 39 | |
| 40 | If you are server administrator you can try snmpd or mrtgutils. |