[rrd-users] trying to understand the relationship between source data, what's in rrd and what gets plotted

[Alex van den Bogaerdt]

On Sat, Jul 21, 2007 at 08:41:47AM +0200, Tobias Oetiker wrote:

> yes, as I pointed out in my last reply, you can use 3 RRAs with
> MIN, AVERAGE and MAX consolidation and then plot the data such dat
> you draw an area between MIN and MAX and overlay the AVERAGE line.
> 
> The approach is to use CDEF to build the difference between MIN and
> MAX, then draw MIN without color and use AREA....:STACK to draw the
> MAX

See the example I wrote in my last message.

I didn't talk about the average line, but of course that is
easily added.

-- 
Alex van den Bogaerdt
http://www.vandenbogaerdt.nl/rrdtool/