Re: [rrd-users] Different data on the same graph

Hi Piers. Multiple Y axes aren't currently possible (I had the
requirement as well) in RRDTool. In my case, I pulled the data from
an RRD and used the GD::Graph Perl module, with its 'two_axes'
parameter, to graph them. See

http://gdgraph.com/samples/sample57.html

for a basic example or two that should get you going in the right direction.

David


On 29/09/2007, Piers Kittel <mailing@biased.org> wrote:
> Hello all,
>
> Have started a new RRD for system sensors (CPU temp, mobo temp, CPU
> fan etc) and have made a graph for temperatures only, and I'd think
> it'd be interesting if I add in a line showing load averages (I
> already have recorded this for 2 years or so) as the higher the load
> average, the higher the temps are. Anyway, I've made a graph with
> all 3 data - CPU temp, motherboard temp and load average. Obviously
> the graph has a y axis of 0 - 50, so load average is almost a flat
> line at the bottom. Here's what I mean:
>
> http://www.biased.org/rrdtool/sensors.png
> http://www.biased.org/rrdtool/loadaveragesdaily.png
>
> Is it possible to have the load average line on the sensors graph to
> look like the one in the load average graph? I.e. have 2 Y axis (not
> sure of the technical name for this, sorry), one on left and one on
> right, the lines refer to whichever one is relevant, a bit like this
> one http://www.scielo.cl/fbpe/img/imar/v31n2/pag49.jpg ?
>
> Thanks very much for your time!
>
> Regards - Piers
>
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