[rrd-users] Re: new log2rrd beta - handles MAX values, etc.

[Tobias Oetiker]

Today you sent me mail regarding [rrd-users] Re: new log2rrd beta - handles...:

*> > When "UseRRDTool Yes" is specified, why does MRTG create the RRD with
*> > this RRA?:
*> > 
*> >                   "RRA:MAX:0.5:1:600",
*> > 
*> > Won't that RRA contain the same values as the initial AVERAGE RRA, and
*> > therfore be redundant?:
*> > 
*> >                   "RRA:AVERAGE:0.5:1:600",
*> 
*> Wouldn't this be the same as with MRTG?  If you sample more often than
*> once every five minutes, you can get 5-minute averages that are (much)
*> lower than the peaks seen in those 5 minutes.

No, RRDtool always alignes data to the step interval first ... MRTG
does not do this. When I did this thing for mrtg I thought it was
cool. Now I think it was not the right thing ... RRDtool works in a
much more reproducible way ...

tobi

*> regards,
*> 

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