[rrd-users] Re: RRA selection

[Alex van den Bogaerdt]

Dan Winslow wrote:

> Given a definition like :
> 
> rrdtool create test.rrd -s 900
> DS:inutil:GAUGE:1800:0:200
> DS:oututil:GAUGE:1800:0:200
> RRA:AVERAGE:0.5:1:35040
> RRA:AVERAGE:0.5:96:365
> 

[snip]

> Which RRA is being plotted by the above statement? Both?

It depends.  What is the best match:

If the data you ask for is available in the first RRA (the one with
the smaller intervals) then this one will be used.

When you ask for more than one days worth of data, the request
cannot be satisfied by the first RRA.  The second RRA will be
used.  Any interval not (yet) available in that RRA will be read
as unknown.

cheers,
-- 
   __________________________________________________________________
 / alex at slot.hollandcasino.nl                  alex at ergens.op.het.net \
| work                                                         private |
| My employer is capable of speaking therefore I speak only for myself |
+----------------------------------------------------------------------+
| Technical questions sent directly to me will be nuked. Use the list. | 
+----------------------------------------------------------------------+
| http://faq.mrtg.org/                                                 |
| http://rrdtool.eu.org  --> tutorial                                  |
+----------------------------------------------------------------------+

--
Unsubscribe mailto:rrd-users-request at list.ee.ethz.ch?subject=unsubscribe
Help        mailto:rrd-users-request at list.ee.ethz.ch?subject=help
Archive     http://www.ee.ethz.ch/~slist/rrd-users
WebAdmin    http://www.ee.ethz.ch/~slist/lsg2.cgi