[mrtg] Re: RRD Config
Jeff.Cook at wecu.com
Fri Apr 2 02:07:35 MEST 2004
Well I don't use cfgmaker. I have a custom script that reads the monitored
items from the database and it rights the config based from that info. It
works great if you know how to write the MRTG file yourself. I have done
well so far but got stumped very fast when it came to RRD. Can you send a
sample of what these lines look like in the MRTG file? And are these per
target options or global? I've seen a lot of RRD docs and a lot of MRTG
docs, but I haven't found a good source for RRD as it applies to MRTG.
Whatcom Educational Credit Union
From: PAUL WILLIAMSON [mailto:pwilliamson at mandtbank.com]
Sent: Thursday, April 01, 2004 10:23 AM
To: mrtg at list.ee.ethz.ch; Jeff Cook
Subject: Re: [mrtg] RRD Config
>>> "Jeff Cook" <Jeff.Cook at wecu.com> 04/01/04 12:38PM >>>
>I am looking to change to RRD with MRTG for the collection. If I do this I
>would like to change RRD to store minutely not every 5 minutes. I think I
>know how to change a RRD file to be able to have that many storage points.
>So here is my question. Is there anyway to have a config file that
>will use to create the new RRD files? I would want the RRD files to be
>created by MRTG with the right settings to begin with. I don't think it
>would be good for me to have the MRTG config change automatically and then
>have to remember to reconfigure the RRD file after each database change.
>50% of the time I don't know when a change is made that would cause a new
>RRD file to be made.
It is quite easily accomplished.
How long do you want to store the minute data for? 1 day, 1 month, 1 year?
We do this for a 5 minute interval for 1 year, and have modified cfgmaker to
accomplish it. If you use cfgmaker, just add another RRA for 1 minute
intervals and define the number of samples you'd like (1 day would be 1,440
Our rrd files grew from about 94k to just over 3mb for 5 minute sample
I would venture a guess that 1 years' worth of 1 minute samples would be
15mb per rrd.
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