RRA upgrade

rra_upgrade.sh

#!/bin/sh

for rrd in *.rrd; do
	since="$(rrdtool dump $rrd|grep -oE '[[:digit:]]{10}'|sort|tail -n1)" 
	rrdtool create $rrd.new --start "$since" --step 60 \
		DS:upstate:GAUGE:120:0:1 \
		DS:clients:GAUGE:120:0:200 \
		RRA:AVERAGE:0.5:1:120 \
		RRA:AVERAGE:0.5:5:1440 \
		RRA:AVERAGE:0.5:60:720 \
		RRA:AVERAGE:0.5:720:730
	rrdtool dump $rrd|sed -n 's/^.*\/ \(.*\) --> <row><v>\(.*\)<\/v><v>\(.*\)<\/v><\/row>/\1:\2:\3/p'|xargs rrdtool update $rrd.new
done