[rrd-users] Stack valuates together to a daily bar

[Mark Mathieson]

Hi Bart,

That home electricity graph is so cool!

What I want to know is, how do you collect the data in the first place?!

Cheers,

Mark 

> -----Original Message-----
> From: rrd-users-bounces at lists.oetiker.ch [mailto:rrd-users-bounces at lists.oetiker.ch] On
> Behalf Of Bart Van Der Meerssche
> Sent: Thursday, 11 June 2009 8:00 p.m.
> To: Marc Tobien
> Cc: rrd-users at lists.oetiker.ch
> Subject: Re: [rrd-users] Stack valuates together to a daily bar
> 
> Hi Marc,
> 
> you can achieve this by creating multiple RRA's in one RRD, e.g.
> rrd create ... -s 60
> RRA:AVERAGE:0.5:1:120
> RRA:AVERAGE:0.5:15:192
> RRA:AVERAGE:0.5:1440:60
> RRA:AVERAGE:0.5:10080:520
> 
> will store
> 120 entries with a 1min interval
> 192 entries with a 15min interval
> 60 entries with a 1day interval
> 520 entries with a 1week interval
> for you.
> 
> Then run:
> rrdgraph ... -s -1week ...
> 
> RRD will select the highest resolution available that covers the entire
> interval to plot on the graph. In this case, it will fetch data from the
> 1day RRA.
> 
> To see this code in action for my home electricity usage, surf to
> www.flukso.net
> 
> Cheers,
> Bart.
> 
> Marc Tobien wrote:
> > Hi
> >
> > I am monitoring a solar panel. Every minute the watts are written into a
> > the database. Now for better presentation I am trying to gather the
> > data's from every day and present the result for each day in only one
> > bar, so I can see for example 7 bars in one week and can se what was the
> > best day.
> >
> > I am working with php and my string is looking like this:
> >
> >
> >
> > /usr/bin/rrdtool graph /var/www/temperature/solarleistung_week.png -s
> > -1week DEF:w1=/var/log/digitemp_rrd/solar_kw.rrd:watt:AVERAGE
> > LINE1:w1#48d1cc:"Solarleistung in Watt" -h300 -w500 -y1:2 --color
> > GRID#dddddd --color MGRID#aaaaaa.
> >
> > http://152.143.90.130/temperature/solarleistung_week.png
> >
> >
> >
> > How can I say to rrd to gather the data's every day to one bar?
> >
> > Regards
> >
> > Marc
> >
> >
> > ------------------------------------------------------------------------
> >
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