[rrd-users] Getting Started with RRD

Lex ephedrine at rogers.com
Mon Oct 29 17:16:56 CET 2007

So is that a pre-requirement to RRD?  That all data have an even step?  The 
reason I ask, is that the series of data I have doesn't necessarily have 
information available at regular intervals; consider reachability issues and 
the like..


----- Original Message ----- 
From: <Rene.Fritzsche at web.de>
To: "Lex" <ephedrine at rogers.com>; <rrd-users at lists.oetiker.ch>
Sent: Monday, October 29, 2007 4:05 AM
Subject: Re: [rrd-users] Getting Started with RRD


>     I have a system, that periodically reports server load, HDD load as 
> well as a few other stats...to get started however I'd like to make a 
> simple graph that plots server load, and ping response time.
> unix timestamp       ping-to response time        cpu load
> 1193624363        0.02                                  0.1
> 1193624363        0.001                                0.05
>     Is it possible to plot both of these bits of information on a same 
> RRDTool graph?

nope, unless you change the interval of value-readings to a minimum of 1 
before trying to create a rrd out of these informations. ;-)

lets assume you check your server every minute (60s), you'd have to create a 
with some lines like this:

rrdtool create serverstats.rrd --step 60 \
 DS:ping:ABSOLUTE:120:0:U \
 DS:load:ABSOLUTE:120:0:U \
[and then the needed RRA-Definitions...]

but you should check the rrdtool-webpage for more detailed informations and 
how to use rrdtool at all. (www.rrdtool.org)


Erweitern Sie FreeMail zu einem noch leistungsstärkeren E-Mail-Postfach!
Mehr Infos unter http://produkte.web.de/club/?mc=021131

More information about the rrd-users mailing list