UNIX for Dummies Questions & Answers

Hello all,

I am new to RRDtool and have made a RRDtool database with one data-source. Information of this data-source is stored in four different RRA's with different intervals for different time spans.

Database create command:

Code:

rrdtool create /root/mde.rrd --step 300 \
DS:kwh1:COUNTER:600:U:U \
RRA:LAST:0.5:1:2016 \
RRA:LAST:0.5:3:2921 \
RRA:LAST:0.5:12:8765 \
RRA:LAST:0.5:288:1826

The first RRA stores the stores the new value minus the last value (as expected). The other RRA's store only the last result of the first RRA. It doesn't store the new value minus the last value of that RRA. Am i doing something wrong or isn't this possible?

Thanks in advance

ArtOfLosing

Maybe i didn't explain it good enough so i added a table where you can see what i mean.

As you can see the 5 min interval works. but 15 min interval does not, it had the same value as the 5 min interval at that time. What i want it to be is the total of those 5 min intervals.

Is this possible? Or do i have to make a very big 5 min interval and leave the rest out?

You have only defined a LAST RRA so there is nothing to consolidate. . You need to add either an AVE or a MAX RRA . All the info is in the RRDTool tutorials available in multiple places in the web...