[rrd-users] How to simply insert and extract data in rrdtool without any averaging

Sabine Bödefeld sabine.boedefeld at wuerth-phoenix.com
Thu Apr 14 15:45:21 MEST 2005


we use rrd.tool to insert sample data and extract it to a graph. We 
insert data every 10s. We would like to simply store the data and 
retrieve it without any averaging done whatsoever.
We use the following command:

rrdtool create  ${RRDPATH}/st_${DBNAME}_${HOST}.rrd --start N --step 10 
DS:chr:GAUGE:15:0:100 DS:datareads:GAUGE:15:0:200000 
DS:datawrites:GAUGE:15:0:200000  RRA:LAST:0.5:1:8640

But extracting the data from our archive, we see that averaging is done 
whenever we set the hearbeat greater than the step. But if we set 
heartbeat also to 10s, we get "Unknown" values all the time.

Any hints what we could do?

Thanks very much
Bye Sabine

Würth Phoenix S.r.l.
Sabine Bödefeld
System Integration
Via Kravogl 4
I-39100 Bolzano

Direct +39 0471 564 173
Fax +39 0471 564 122
email: sabine.boedefeld at wuerth-phoenix.com
Website: http://www.wuerth-phoenix.com

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