| Introduction |
| ------------ |
| |
| Most mainboards have sensor chips to monitor system health (like temperatures, |
| voltages, fans speed). They are often connected through an I2C bus, but some |
| are also connected directly through the ISA bus. |
| |
| The kernel drivers make the data from the sensor chips available in the /sys |
| virtual filesystem. Userspace tools are then used to display the measured |
| values or configure the chips in a more friendly manner. |
| |
| Lm-sensors |
| ---------- |
| |
| Core set of utilities that will allow you to obtain health information, |
| setup monitoring limits etc. You can get them on their homepage |
| http://www.lm-sensors.nu/ or as a package from your Linux distribution. |
| |
| If from website: |
| Get lm-sensors from project web site. Please note, you need only userspace |
| part, so compile with "make user" and install with "make user_install". |
| |
| General hints to get things working: |
| |
| 0) get lm-sensors userspace utils |
| 1) compile all drivers in I2C and Hardware Monitoring sections as modules |
| in your kernel |
| 2) run sensors-detect script, it will tell you what modules you need to load. |
| 3) load them and run "sensors" command, you should see some results. |
| 4) fix sensors.conf, labels, limits, fan divisors |
| 5) if any more problems consult FAQ, or documentation |
| |
| Other utilities |
| --------------- |
| |
| If you want some graphical indicators of system health look for applications |
| like: gkrellm, ksensors, xsensors, wmtemp, wmsensors, wmgtemp, ksysguardd, |
| hardware-monitor |
| |
| If you are server administrator you can try snmpd or mrtgutils. |