Re: [rrd-users] gauges

On Sat, Apr 5, 2008 at 4:16 PM, Simon Hobson <linux@thehobsons.co.uk> wrote:
> >For GAUGE types, do I *need* RRAs of MIN MAX and AVERAGE? Would *just*
> >LAST work best, and if not, why not?
>
> What are YOUR requirements ? RRD does not impose any particular
> schema, you are free to define whatever meets your requirements.

Ok, makes sense, I was working under the incorrect assumption that
certain things had to be a certain way, a la your mention of a schema.

> >Since I want to report hourly, is there a need to have more than one
> >update inserted into the rrd per hour, and if so, why?
>
> No, not if all you want is one sample per hour.

Understood. And if I understand the purposes for MIN MAX and AVERAGE,
they can be used additionally in a GAUGE context. I can understand
their use in COUNTER types for net traffic etc.

> So, if all you want is one sample, on the hour, then all you need is
> one update per hour - and 'last' will probably do you (though with
> one data point, min, max, average, and last are all the same). On the
> other hand, if you want to be able to see what the data did in
> between, then you might want more frequent updates and
> min/max/average as required.

So in regard to reporting, the -s interval means?

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