Hi everyone, I'm looking for a way to calculate the peak value from multiple databases (Backup usage of different servers).
This is the setup: 20 databases, each of them type Gauge, cf is Avg with 210240 rows. My graph looks fine, it is an area for the first database, the others are stacked on top. When I look at the graph, an overall backup usage of 6 TB is visible. But this problem occurs: I want a description line, which lists the largest value, calculated over all databases. DEF for each database is: DEF:l${NR}=${DATAFILE}.rrd:ds1:AVERAGE where NR is 0..19 My CDEF is: cdef:ctotal=${RPNCALC} where RPNCALC is each ds added (0,l0,+,l1+,l2...) And then I vdef' it: VDEF:vtotal=ctotal,MAXIMUM On this point the graph and the commentline vary: I have a graph showing nearly 6 TB on it's highest peak, but the GPRINT gives me only 5,2 TB. Does anyone have an idea where my mistake is? Thanks, Jan _______________________________________________ rrd-users mailing list rrd-users@lists.oetiker.ch https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users