[rrd-users] Re: Max Min and Avg RRAs

[Alex van den Bogaerdt]

Gellatly, Laurie wrote:

> 	Min	Avg	Max
> Min	Y	N	N
> Avg	N	Y	N
> Max	N	N	Y

Nope.  You have *1* DS which, by nature, is the maximum, minimum
and average value at the same time.
Then you create three RRAs (each CF one time) and when consolidation
occurs the RRAs will be filled in.

If you have three DSes (A B and C) and only want minimum values for
A, averages for B and maximum values for C you could of course have
three separate RRDs.

If you create just one RRD with the three RRAs in it, then yes: there
will be considerable overhead.  However, the "workaround" (as above)
is simple and changing the RRD format seems (IMHO) not worth it.

cheers,
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