[rrd-users] water usage

Simon Hobson linux at thehobsons.co.uk
Sat Jul 24 22:32:28 CEST 2010

Rick Dicaire wrote:
>Darren Dunham <ddunham at taos.com> wrote:
>  > An alternative is to not use "day" steps, but "hour" steps, and leave
>>  long heartbeats.
>>  --steps=3600
>>  [...]
>>  'RRA:LAST:0.01:1:900' \
>>  [...]
>>  rrdtool updatev water.rrd 1279641600:140 1279728000:750 1279814400:190
>I effected the above change, and now the graph correctly displays each
>days usage. What I don't understand is why this change works. Since
>I'm only inputting data once every 86400 sec, why wouldnt I use that
>value for --step?

See http://www.vandenbogaerdt.nl/rrdtool/
In particular, see the tutorial on "Rates, normalizing and consolidating"
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

More information about the rrd-users mailing list