[rrd-users] Re: Increasing One Year RRD Database to Two Years

Brian E. Seppanen seppy at chartermi.net
Wed May 22 16:18:42 MEST 2002

On Wed, 22 May 2002, Martin Rheumer wrote:

> Gents,
> Once you do this..
> What happens to mrtg does it not care and just keep logging leaving
> the the averaging of the yearly data to rrd ?
> Can the same be applied to daily.. ?
> Ie would like to keep every 5 minute collection for 2 years.
> ( I got the disk space, not the patience for management asking
> why they cant see the daily results for 2 weeks ago ).
> Perhaps someone who has done this wouldnt mind posting commands /
> examples of disk space after they have done the same.

I'm not quite sure how mrtg would handle it? I would be running into the
situation that you are talking about.  I assumed the mrtg would simply
hand the data to RRD and the database handles the how the data was
manipulated.  In our case 14all.cgi would do the rendering of the images,
and I don't know if that would graph the additional years worth of data.  
I, too, would be helped immensely if someone else has used mrtg in
conjuntion with rrdtool and 14all.cgi to graph two years of data instead
of one.

I'd assume disk space requirements would double per database, but I'm 


Brian Seppanen
seppy at chartermi.net
906-228-4226 ext 23

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