You may want to consider splitting the databases. You can always combine the data for the graph later, if you want. I take the readings every 10 seconds too, but will populate the gas database only when the timestamp of the gas reading changes.
Bram -- View this message in context: http://rrd-mailinglists.937164.n2.nabble.com/Confusion-about-VDEF-total-and-graph-values-tp7583425p7583432.html Sent from the RRDtool Users Mailinglist mailing list archive at Nabble.com. _______________________________________________ rrd-users mailing list rrd-users@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users