[rrd-users] Re: RES: Re: Graphics problem
gzicarelli at lopezleon.com
Mon Oct 25 19:51:01 MEST 2004
> From: Hugo Rebello [mailto:hugo.rebello at dhl.com]
> I read this document, but I don't understand what is
> I'm not sure, what I must put there.
The creation of the database is for storing purposes,
however if you don't put data in it...it's useless.
I assume you are gathering ping roundtrip values and
want them to be nicely shown in a graph, right?
Any method you have for getting these values is fine,
as long as you can put them in the .RRD.
For instance here I get the value to update my db:
rrdtool update PING.rrd N:`ping -c1 192.168.0.1 | cut -d/ -f4`
Epoch refers to the number of secs since January 1, 1970.
To update you can explicitily indicate the time or can let
rrdtool to get it when updating the values: the 'N' in
this example means 'Now'.
Easy isn't it?
You can store the output and then update, or do it
on the fly, as above.
Hope it helps.
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