Mini Server Environment Monitoring System
Graphs the Data from Sensors Using MRTG.
Also known as: Remote Server Environment Monitoring System, monitor computer rooms, data center thermometer, temperature humidity sensor reading, computer room temperature alert.
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The ENVIROMUX-MINI Graphs the Data from its Sensors Using MRTG
The ENVIROMUX-MINI Server Environment Monitoring System can graph the data from its sensors using MRTG (Multi Router Traffic Grapher). This provides a visual representation of the critical environmental conditions being monitored. MRTG generates HTML pages containing regularly updated PNG images providing graphical trending of time-series data. The graphs display daily, weekly, monthly and yearly statistics of the environmental conditions being monitored.
Sample graphs:
Internal Humidity: Daily Graph (5 Minute Average)
| Max | Average | Current | |
|---|---|---|---|
| Internal Humidity: | 39.0°F | 37.0°F | 34.4°F |
Internal Humidity: Weekly Graph (30 Minute Average)
| Max | Average | Current | |
|---|---|---|---|
| Internal Humidity: | 38.4°F | 36.5°F | 34.5°F |
Configure MRTG to graph environmental conditions using the ENVIROMUX-MINI Server Environment Monitoring System:
- Install MRTG on your computer using the MRTG installation guide.
- Installation procedure is available at:
- Configure the ENVIROMUX-MINI server environment monitoring system to monitor the environmental conditions you want.
- Create a MRTG configuration file that controls the graphs.
- E-MINI configmaker for MRTG (69 KB)
- How to use the E-MINI configmaker for MRTG (1.4 KB)
- Sample mrtg.cfg file created using the envmini.cfgmaker script
- Note: You can also edit the summary HTML file below to display data from the sensors you use:
<html> <head> <title>ENVIROMUX-MINI</title> <meta http-equiv="refresh" content="300"> </head> <body> <center><table><tr><td align="center"> <h1>Sensors for ENVIROMUX-MINI</h1> </td></tr></table></center> <table> <!-- Filenames and image names should be in the form [name].html and [name].png where [name] is the name used for the sensor in the mrtg.cfg file. tempsens_1 and humsens_1 are shown as examples. --> <tr><td> <a href="tempsens_1.html">Server Room Temperature<br> <img src="tempsens_1-day.png" border="0" alt=""></a> </td></tr> <tr><td> <a href="humsens_1.html">Room Temperature<br> <img src="humsens_1-day.png" border="0" alt=""></a> </td></tr></table> </body> </html>
- Test run MRTG manually to ensure it is working properly.
- The first few times MRTG is run with a newly created env-mini config, it will show non critical errors and does not cause any long term issues. This will only happen once for each sensor. After each sensor is tried once, these messages will go away and MRTG will operate as expected.
- Create a cron job to run MRTG on UNIX machines. Use a daemon on Windows.
- Modify MRTG graphs.
- The default graphs generated by the MRTG configuration script can be modified. Following are examples of changes to the graphs that can be made.