Giese, Edgar wrote: >i use nagios to collect data from a printer with >smnp. I get the printed pages as gauge >(10,15,25,30,80) and with the pnp I get a graph >for the printed pages.
Does the snmp server reset the page count each time you read this value ? If not, then you want data type COUNTER. Remember that no matter what you feed in, internally RRD only deals in rates - ie <things>/second. Also, RRD normalises and consolidates the data - so the values you get out will not generally match what you put in. See http://www.vandenbogaerdt.nl/rrdtool/ and look at the tutorial on Rates, normalizing and consolidating >Changing to this ( wrong "Anzahl") > >$opt[1] = "--vertical-label Anzahl -l 0 --title >\"Gedruckte Seiten auf $hostname \" "; > >$def[1] = "DEF:var1=$rrdfile:$DS[1]:AVERAGE " ; >$def[1] .= "DEF:var1min=$rrdfile:$DS[1]:MIN " ; >$def[1] .= "DEF:var1max=$rrdfile:$DS[1]:MAX " ; >$def[1] .= "CDEF:var1act=var1max,var1min,- " ; >$def[1] .= "VDEF:varact=var1act,MAXIMUM " ; This won't do what you want. var1act will contain the difference between min and max for each consolidated time point - not the difference between the highest and lowest over the whole time series. So lets say you printed 15 pages for each consolidated time period, max-min would be 15 for each data point, and over 10 time periods you'd still only get a max of 15 - not the 150 you might be looking for. If you use a counter data type, then you can plot pages/second - or multiply by 60 for pages/min, or multiply by 3600 to get pages/hour. You can get total pages printed by taking the average over the period and multiplying by the period. Eg, for total pages in a day, get the average over the previous day (pages/second) and multiply by 86400 (seconds/day) to get the total. Current versions of RRD have a TOTAL function that does this for you. -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
