RRDINFO(1) rrdtool RRDINFO(1) (NAME) rrdinfo - RRD (SYNOPSIS) rrdtool info filename [--daemon|-d address [--noflush|-F]] (DESCRIPTION) info RRD . rrdcreate . filename RRD . --daemon|-d address rrdcached. RRD "flush" . rrdtool . -l rrdcached . rrdtool info --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd --noflush|-F "flush" . RRD . (EXAMPLE) info RRD RRA . last_update . NaN (*UNKNOWN*) . RRD . filename = "random.rrd" rrd_version = "0001" step = 300 last_update = 955892996 header_size = 2872 ds[a].type = "GAUGE" ds[a].minimal_heartbeat = 600 ds[a].min = NaN ds[a].max = NaN ds[a].last_ds = "UNKN" ds[a].value = 2.1824421548e+04 ds[a].unknown_sec = 0 ds[b].type = "GAUGE" ds[b].minimal_heartbeat = 600 ds[b].min = NaN ds[b].max = NaN ds[b].last_ds = "UNKN" ds[b].value = 3.9620838224e+03 ds[b].unknown_sec = 0 rra[0].cf = "AVERAGE" rra[0].pdp_per_row = 1 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 (ENVIRONMENT VARIABLES) "rrdtool info" : RRDCACHED_ADDRESS "--daemon" . . (AUTHOR) Tobias Oetiker 1.11.0 2026-08-08 RRDINFO(1)