Hi, Thanks to Ryan's suggestion I came up with the following:
Instead of using "rrdtool dump" which dumps the entire RRD and is hard to process, I used "rrdtool fetch" and specified the correct time period to select the appropriate RRA (I use +3months as I want at least 3 months of white space on the right of the graph to see the trend lines): rrdtool <rrd> fetch MAX -s -1y+3months I then loop through the output to find the first non-NaN row and get the time which is in the correct format for the RRA - let's call this $START. If I don't find any NaN entries at the beginning then I don't need to continue with this and I draw the graph normally. I then pass the following to rrdtool: rrdtool graph -s $START -e $START+1y ... This then generates a graph which grows from the left with all the white space at the right hand side. I can't seem to find any scenarios where this approach doesn't work. Thanks, Chris
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