Historic Graphs (1 week 1 month ago) not showing 5 min data

[munerangus]

I'm using the default 0.8.6d RRD files size:

Name Steps Rows Timespan
Daily (5 Minute Average) 1 51840 86400
Weekly (30 Minute Average) 6 8736 604800
Monthly (2 Hour Average) 24 2160 2678400
Yearly (1 Day Average) 288 797 33053184

I created my graphs using these settings 6 weeks ago.

When I generate a weekly graph from the previous month using the Graph View Timespan Selector, the graphed data has a lower level of detail (like every 2 hours instead of every 5 minutes).

Am I not supposed to be collecting 5 min data for like 6 months? Thanks in advance for your advice.

[munerangus]

Is there a way I can verify that my RRA files are created with enought 5-min data so that I don't loose detail in my history?

Thanks for your help.

[munerangus]

It seems that the default was changed after the updates. The RRD files had the wrong size.

I used the script:

for f in `find . -maxdepth 1 -name \*\.rrd`
do
echo "-- Working on $f"
echo " Growing RRA 0"
rrdtool resize $f 0 GROW 86400
mv resize.rrd $f
echo " Growing RRA 4"
rrdtool resize $f 4 GROW 86400
mv resize.rrd $f
echo "Done."
done

and now all my 5 min data is been kept for more than 6 months

[gandalf]

I worked on a HOWTO for creating new rra's for new rrd's. But I'm on the way adding more info based on your shell script to even modify existing rrd's. See http://forums.cacti.net/viewtopic.php?t=9605
Reinhard