Hi good people,
Can anyone explain to me, why "rrdtool info" shows that 24h average for given rra is _higher_ than max for same 24h? This seems typical, but how comes? This looks suspicious. Second, I understand, that below, rra[4] and rra[5] respectively hold ds averages and maxes for last 24h. I let rrd graph calculate same average/max for last 24h, and I get different results. Why? Also, what does rrd headers ds[dsN].value stand for? I thought they stand for CF:last (rate from last sample), yet with graph I get again different results. I don't get it. #rrdtool info fastethernet0_1.rrd filename = "fastethernet0_1.rrd" rrd_version = "0001" step = 300 last_update = 981573630 ds[ds0].type = "DERIVE" ds[ds0].minimal_heartbeat = 1800 ds[ds0].min = 0.0000000000e+00 ds[ds0].max = NaN ds[ds0].last_ds = "1902887567" ds[ds0].value = 1.4077733077e+07 ds[ds0].unknown_sec = 0 ds[ds1].type = "DERIVE" ds[ds1].minimal_heartbeat = 1800 ds[ds1].min = 0.0000000000e+00 ds[ds1].max = NaN ds[ds1].last_ds = "3766923824" ds[ds1].value = 1.8974612308e+07 ds[ds1].unknown_sec = 0 rra[0].cf = "AVERAGE" rra[0].rows = 600 rra[0].pdp_per_row = 1 rra[0].xff = 0.0000000000e+00 rra[0].cdp_prep[0].value = NaN rra[0].cdp_prep[0].unknown_datapoints = 0 rra[0].cdp_prep[1].value = NaN rra[0].cdp_prep[1].unknown_datapoints = 0 rra[1].cf = "AVERAGE" rra[1].rows = 600 rra[1].pdp_per_row = 6 rra[1].xff = 0.0000000000e+00 rra[1].cdp_prep[0].value = 1.8478077248e+06 rra[1].cdp_prep[0].unknown_datapoints = 0 rra[1].cdp_prep[1].value = 2.5527734670e+06 rra[1].cdp_prep[1].unknown_datapoints = 0 rra[2].cf = "AVERAGE" rra[2].rows = 600 rra[2].pdp_per_row = 24 rra[2].xff = 0.0000000000e+00 rra[2].cdp_prep[0].value = 7.4878643473e+06 rra[2].cdp_prep[0].unknown_datapoints = 0 rra[2].cdp_prep[1].value = 1.0403525907e+07 rra[2].cdp_prep[1].unknown_datapoints = 0 rra[3].cf = "MAX" rra[3].rows = 600 rra[3].pdp_per_row = 24 rra[3].xff = 0.0000000000e+00 rra[3].cdp_prep[0].value = 5.1352932593e+05 rra[3].cdp_prep[0].unknown_datapoints = 0 rra[3].cdp_prep[1].value = 7.4711004588e+05 rra[3].cdp_prep[1].unknown_datapoints = 0 rra[4].cf = "AVERAGE" rra[4].rows = 600 rra[4].pdp_per_row = 288 rra[4].xff = 0.0000000000e+00 rra[4].cdp_prep[0].value = 1.2289683591e+08 rra[4].cdp_prep[0].unknown_datapoints = 0 rra[4].cdp_prep[1].value = 1.8594401140e+08 rra[4].cdp_prep[1].unknown_datapoints = 0 rra[5].cf = "MAX" rra[5].rows = 600 rra[5].pdp_per_row = 288 rra[5].xff = 0.0000000000e+00 rra[5].cdp_prep[0].value = 9.1094674129e+05 rra[5].cdp_prep[0].unknown_datapoints = 0 rra[5].cdp_prep[1].value = 1.3906511967e+06 rra[5].cdp_prep[1].unknown_datapoints = 0 rrdtool graph \ "/dev/null" \ "DEF:vavg0=fastethernet0_1.rrd:ds0:AVERAGE" \ "DEF:vmax0=fastethernet0_1.rrd:ds0:MAX" \ "DEF:vavg1=fastethernet0_1.rrd:ds1:AVERAGE" \ "DEF:vmax1=fastethernet0_1.rrd:ds1:MAX" \ "CDEF:savg0=vavg0" \ "CDEF:smax0=vmax0" \ "CDEF:savg1=vavg1" \ "CDEF:smax1=vmax1" \ "PRINT:savg0:LAST:ds0 lst - %12.1lf" \ "PRINT:savg0:AVERAGE:ds0 avg - %12.1lf" \ "PRINT:smax0:MAX:ds0 max - %12.1lf" \ "PRINT:savg1:LAST:ds1 lst - %12.1lf" \ "PRINT:savg1:AVERAGE:ds1 avg - %12.1lf" \ "PRINT:smax1:MAX:ds1 max - %12.1lf" \ "-s -1day" 0x0 ds0 lst - 473262.3 ds0 avg - 543408.9 ds0 max - 2906656.6 ds1 lst - 635394.9 ds1 avg - 752755.6 ds1 max - 1390651.2 ------------------------------------ Andres Kroonmaa <[EMAIL PROTECTED]> Delfi Online Tel: 6501 731, Fax: 6501 708 Pärnu mnt. 158, Tallinn, 11317 Estonia -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
