[rrd-users] Noob questions about number of rows to create.
rick.jones2 at hp.com
Mon Jun 13 19:58:33 CEST 2011
On Mon, 2011-06-13 at 13:44 -0400, Craig Smith wrote:
> I'm tying to create and RRD for keeping track of an Ethernet interface
> at intervals of 15 second, and I don't know how many rows to keep for
> the 1 min, 5 min, 15 min, 1 hour, and 1 day averages I am keeping.
> Would someone please explain to me how to pick a proper amount of rows
> for an archive
That is like asking how long one should make a length of string. It
really depends on what *you* want to be able to do with the data.
In my presumably uncommon case I want three days of 1 second averages
and then keep some number of weeks and months of 10 second and 1 minute
(from memory, the other two RRAs aren't as important to me so I don't
have it mesmerized at my fingertips as it were).
> rrdtool create foo.rrd -s 15 DS:ds0:COUNTER:30:0:4294967295 \
> RRA:AVERAGE:0.5:4:240:? \
> RRA:AVERAGE:0.5:20:? \
> RRA:AVERAGE:0.5:60:? \
> RRA:AVERAGE:0.5:240:? \
> RRA:MAX:0.5:240:? \
> RRA:AVERAGE:0.5:5760:? \
> rrd-users mailing list
> rrd-users at lists.oetiker.ch
More information about the rrd-users