[rrd-users] Re: new log2rrd beta - handles MAX values, etc.
oetiker at ee.ethz.ch
Tue Jun 27 23:11:32 MEST 2000
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 ...
______ __ _
/_ __/_ / / (_) Oetiker, Timelord & SysMgr @ EE-Dept ETH-Zurich
/ // _ \/ _ \/ / TEL: +41(0)1-6325286 FAX:...1517 ICQ: 10419518
/_/ \.__/_.__/_/ oetiker at ee.ethz.ch http://ee-staff.ethz.ch/~oetiker
More information about the rrd-users