[rrd-users] Re: Questions about manipulating the data
Alex van den Bogaerdt
alex at ergens.op.het.net
Sat Oct 23 15:03:01 MEST 2004
On Mon, Oct 18, 2004 at 08:34:15PM +0200, Philip Lawatsch wrote:
> $rrdtool create /opt/rrd/disk0.rrd -s 60 \
> DS:used:GAUGE:600:U:U \
> DS:free:GAUGE:600:U:U \
> RRA:AVERAGE:0.5:1:3000 \
0.5 may need to be adjusted
> Sometimes I wont get data for more than one hour and of course have a
> hole in the Graph.
> Since this does not look too good I'd like to use the last known value.
> How can I do this?
or use PREV
> Thus I do a
> To make these values appear as 0 in case there was no data.
> The problem is, i want these values to be 0 only if the time for the
> value still lies inside the time of the other sources.
Use TIME and IF.
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