[rrd-users] ERROR: Not a valid vname

[Bachman Kharazmi]

Hi
I get an error when I do rrdtool graph like:  "ERROR: Not a valid
vname: rmin in line GPRINT:rmin:Min %6.0lf" even when the variable
rmin is defined. I'm out of ideas about why it complains. System is
etchnhalf (2.6.24) and RRDtool 1.2.15.

create:
rrdtool create /home/bachman/dev/rrdscript/data/diskstats-sda.rrd -s
300  DS:rcomp:COUNTER:600:0:U DS:rmerge:COUNTER:600:0:U
DS:rsect:COUNTER:600:0:U DS:rms:COUNTER:600:0:U
DS:wcomp:COUNTER:600:0:U DS:wmerge:COUNTER:600:0:U
DS:wsect:COUNTER:600:0:U DS:wms:COUNTER:600:0:U
DS:currentio:COUNTER:600:0:U DS:msio:COUNTER:600:0:U
DS:wmsio:COUNTER:600:0:U RRA:AVERAGE:0.5:1:42048 RRA:MIN:0.5:1:42048
RRA:MAX:0.5:1:42048

update:
rrdtool update /home/bachman/dev/rrdscript/data/diskstats-sda.rrd
N:7831:1872:326578:76260:25845:163459:1515608:2437488:0:709152:2513768

graph:
rrdtool graph /home/bachman/dev/rrdscript/html/diskstats-sda-1y.png -t
"Disk access, read and write frequency" -v "Frequency" --start
1197745443 --end 1226775843  -a PNG -w 800 -h 200 -z
DEF:r=/home/bachman/dev/rrdscript/data/diskstats-sda.rrd:rcomp:AVERAGE
DEF:w=/home/bachman/dev/rrdscript/data/diskstats-sda.rrd:wcomp:AVERAGE
VDEF:rmax=r,MAXIMUM VDEF:ravg=r,AVERAGE VDEF:wmax=w,MAXIMUM
VDEF:wavg=w,AVERAGE GPRINT:rmin:"Min %6.0lf" GPRINT:ravg:"Ave %6.0lf"
GPRINT:rmax:"Max %6.0lf\n" GPRINT:wmin:"Min %6.0lf" GPRINT:wavg:"Ave
%6.0lf" GPRINT:wmax:"Max %6.0lf\n" LINE2:r#00FF00:"Reads/s "
LINE2:w#FF0000:"Writes/s "

/Bachman