[mrtg] Server Room Temperature Monitoring Questions

Stevo checkpoint at ozbergs.com
Thu Nov 17 19:08:10 MET 2005

Hi Team,

I recently purchased an APC Environmental monitoring system (since I've 
been having some temperature issues with my server room) and I have been 
working on graphing that temp data using MRTG.  I have everything up and 
running, but now need some assistance in making the graphs more useful 
and readable!!

The APC unit measures both Temp and Humidity with a single probe and I'm 
currently getting a regular MRTG graph with Temp and Humidity on the 
same graph.  Temp is in Green and Humidity is in Blue.  Is there a way 
to swap those around as it would make more sense to me to have the temp 
be the blue line!

The second questions is that the APC unit sends it measurements in 
Celcius and I'd like to that to Fahrenheit on the graph.  Take a look at 
my config and you can see I attempted to do the x*1.8 + 32 conversion, 
but the problem I ran into is that the humidity is tied into that target 
and it messes the conversion out.

I'm only really interested in seeing the Temp being graphed at this 
time... so is there a way to remove the humidity and just see the temp??

Any other ideas for me?  My config is posted below:


WorkDir: /var/www/html/mrtg
Title[]: Temperature for IT Server Room
PageTop[]: <H1>Temperature and Humidity in IT Server Room</H1>
#Target[]: ( at 
* 1.8 ) + 32
Target[]: at
MaxBytes[]: 100
Options[]: growright,gauge,nopercent
YLegend[]: Temp
Legend1[]: Temperature
Legend2[]: Humidity
Legend3[]: Max Temp. value per interval on graph
Legend4[]: Max Hum. value per interval on graph
LegendI[]: Sensor Temp:&nbsp;
LegendO[]: Sensor Humidity:&nbsp;
Colours[]: GREEN#00eb0c,BLUE#0000ff,GRAY#AAAAAA,VIOLET#ff00ff
WithPeak[]: ymw

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