RRD neukládá hodnoty do databáze

[Jan Krajdl]

Ahoj. Začal jsem si hrát s RRD, pokoušim se do toho ukládat provoz, co
jde přes slot ve switchi... Nicméně narážim na problém, že ať zkusím
cokoliv, tak hodnota je vidět jenom v last_ds a v databázi zůstává všude
jenom NaN :( výpis rrdtool info vypadá takto (hodnoty jsou ukládané v
GB):

filename = "slot_0.rrd"
rrd_version = "0003"
step = 300
last_update = 1201278422
ds[inBytes].type = "DERIVE"
ds[inBytes].minimal_heartbeat = 600
ds[inBytes].min = 0.0000000000e+00
ds[inBytes].max = 1.2500000000e+08
ds[inBytes].last_ds = "639503.946330404"
ds[inBytes].value = NaN
ds[inBytes].unknown_sec = 122
ds[outBytes].type = "DERIVE"
ds[outBytes].minimal_heartbeat = 600
ds[outBytes].min = 0.0000000000e+00
ds[outBytes].max = 1.2500000000e+08
ds[outBytes].last_ds = "666326.766465521"
ds[outBytes].value = NaN
ds[outBytes].unknown_sec = 122
rra[0].cf = "AVERAGE"
rra[0].rows = 576
rra[0].pdp_per_row = 1
rra[0].xff = 5.0000000000e-01
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 = 672
rra[1].pdp_per_row = 6
rra[1].xff = 5.0000000000e-01
rra[1].cdp_prep[0].value = NaN
rra[1].cdp_prep[0].unknown_datapoints = 5
rra[1].cdp_prep[1].value = NaN
rra[1].cdp_prep[1].unknown_datapoints = 5
rra[2].cf = "AVERAGE"
rra[2].rows = 732
rra[2].pdp_per_row = 24
rra[2].xff = 5.0000000000e-01
rra[2].cdp_prep[0].value = NaN
rra[2].cdp_prep[0].unknown_datapoints = 5
rra[2].cdp_prep[1].value = NaN
rra[2].cdp_prep[1].unknown_datapoints = 5
rra[3].cf = "AVERAGE"
rra[3].rows = 1460
rra[3].pdp_per_row = 144
rra[3].xff = 5.0000000000e-01
rra[3].cdp_prep[0].value = NaN
rra[3].cdp_prep[0].unknown_datapoints = 53
rra[3].cdp_prep[1].value = NaN
rra[3].cdp_prep[1].unknown_datapoints = 53

Už nevim co zkusit :/ nenapadá někoho, jak to umoudřit?

Předem díky,
SPM