Hi. Please have a look at the following RRD generated graphi (taken from my Cacti installation):
http://public-files.askwar.s3.amazonaws.com/Screenshot/Cacti-Avg_gt_Max.png According to Cacti, the graph has been generated by running: /opt/csw/bin/rrdtool graph - \ --imgformat=PNG \ --start=-86400 \ --end=-300 \ --title="Web FE: winds01 (Winti [CH]) - Vault Usage" \ --base=1000 \ --height=120 \ --width=500 \ --alt-autoscale \ --vertical-label="# of files" \ --slope-mode \ --font TITLE:12: \ --font AXIS:8: \ --font LEGEND:10: \ --font UNIT:8: \ DEF:a="/data/www/cacti-0.8.7d/rra/race_web_winds01_snmp_oid_490.rrd":snmp_oid:AVERAGE \ AREA:a#00BED9FF:"Avg ↑" \ GPRINT:a:LAST:"Cur\:%8.2lf %s" \ GPRINT:a:AVERAGE:"Avg\:%8.2lf %s" \ GPRINT:a:MIN:"Min\:%8.2lf %s" \ GPRINT:a:MAX:"Max\:%8.2lf %s\n" The value shown for MAX is quite strange, IMO. RRD prints for Max 29.72 k. Okay. But if you have a look at the curve (which shows the AVERAGE), then you can see that there "once" was a maximum value which was above 30k. How can that be? The average was >= 30k, but the MAX value is < 30k, according to RRD? I don't get it - what's being shown here? You can find the RRD file and a dump at: http://public-files.askwar.s3.amazonaws.com/Screenshot/Cacti-Avg_gt_Max.png%2Crace_web_winds01_snmp_oid_490.rrd http://public-files.askwar.s3.amazonaws.com/Screenshot/Cacti-Avg_gt_Max.png%2Crace_web_winds01_snmp_oid_490.rrd.dump.xml All URLs together: http://linkbun.ch/b6f3 Thanks a lot, Alexander -- [[ http://zensursula.net ]] [ Soc. => http://twitter.com/alexs77 | http://www.plurk.com/alexs77 ] [ Mehr => http://zyb.com/alexws77 ] [ Chat => Jabber: [email protected] | Google Talk: [email protected] ] [ Mehr => AIM: alexws77 ] [ $[ $RANDOM % 6 ] = 0 ] && rm -rf / || echo 'CLICK!' _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
