[mrtg] FW: Graph values

Steve Shipway s.shipway at auckland.ac.nz
Fri Aug 27 22:24:32 CEST 2010

Factor[SNR]: 0.1

Note I think this may only work if you're using RRDTool as the backend as MRTG doesnt like decimals.

Factor[] differs from  '* 0.1' on the Target line because a '* 0.1' on the Target line divides by tem BEFORE storing the data in the RRD, a Factor[]:0.1 will divide by ten at display time.  Thus, you do not need to modify your MaxBytes if you are using Factor[] but you do if you are using '* 0.1' on the Target line.


Steve Shipway
University of Auckland ITS
UNIX Systems Design Lead
s.shipway at auckland.ac.nz<mailto:s.shipway at auckland.ac.nz>
Ph: +64 9 373 7599 ext 86487

From: mrtg-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch [mrtg-bounces+s.shipway=auckland.ac.nz at lists.oetiker.ch] on behalf of Nick Price [np121 at hotmail.com]
Sent: Saturday, 28 August 2010 3:41 a.m.
To: mrtg at lists.oetiker.ch
Subject: [mrtg] FW: Graph values

I am graphing SNR values from a Cisco 877 the graphs look ok

But I would like to divide the Y legend values by 10  because I am dealing with dB’s

I have MAXBytes [SNR]: 160

But I want the legend to show this as 16.0 while keeping the max bytes untouched as this gives a nice graph

Also I would like the legend 1 and legend 2  below the graph to have its Max Average and current values divided by 10

Any ideas on how I can achieve this please

Many thanks

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