rrdtool create daq.rrd \
	--start 1006443001 \
	DS:temp:GAUGE:600:U:U \
	DS:humi:GAUGE:600:U:U \
	DS:pres:GAUGE:600:U:U \
	RRA:AVERAGE:0.5:1:600 \
	RRA:AVERAGE:0.5:6:700 \
	RRA:AVERAGE:0.5:24:775 \
	RRA:AVERAGE:0.5:288:797 \
	RRA:MAX:0.5:1:600 \
	RRA:MAX:0.5:6:700 \
	RRA:MAX:0.5:24:775 \
	RRA:MAX:0.5:288:797 \
	RRA:MIN:0.5:1:600 \
	RRA:MIN:0.5:6:700 \
	RRA:MIN:0.5:24:775 \
	RRA:MIN:0.5:288:797 \
	RRA:LAST:0.5:1:600 \
	RRA:LAST:0.5:6:700 \
	RRA:LAST:0.5:24:775 \
	RRA:LAST:0.5:288:797 \