3 rrdtool info - extract header information from an RRD
5 =for html <div align="right"><a href="rrdinfo.pdf">PDF</a> version.</div>
9 B<rrdtool> B<info> I<filename.rrd>
13 The B<info> function prints the header information from an RRD in
14 a parsing friendly format.
16 Check L<rrdcreate> if you are uncertain about the meaning of the
21 This is the output generated by running B<info> on a simple RRD which
22 contains two data sources and one RRA. Note that the number after the
23 I<last_update> keyword is in seconds since 1970. The string B<NaN>
24 stands for I<*UNKNOWN*> data. In the example it means that this RRD
25 has neither minimum not maximum values defined for either of its
28 filename = "random.rrd"
31 last_update = 955892996
33 ds[a].minimal_heartbeat = 600
36 ds[a].last_ds = "UNKN"
37 ds[a].value = 2.1824421548e+04
40 ds[b].minimal_heartbeat = 600
43 ds[b].last_ds = "UNKN"
44 ds[b].value = 3.9620838224e+03
47 rra[0].pdp_per_row = 1
48 rra[0].cdp_prep[0].value = nan
49 rra[0].cdp_prep[0].unknown_datapoints = 0
50 rra[0].cdp_prep[1].value = nan
51 rra[0].cdp_prep[1].unknown_datapoints = 0
57 The name of the B<RRD> you want to dump.
63 Tobias Oetiker E<lt>oetiker@ee.ethz.chE<gt>