[rrd-users] Fetch resolution question

Richard D Alloway ralloway at winbeam.com
Wed Jul 30 08:35:54 CEST 2008

On Fri, 25 Jul 2008, Simon Hobson wrote:

> Richard D Alloway wrote:
>> I have an RRD file that was built with a step of 60 sec and the following
>> RRAs:
>> RRA:AVERAGE:0.25:1:10000
>> RRA:AVERAGE:0.25:10:1000
>> RRA:AVERAGE:0.25:120:800
>> RRA:AVERAGE:0.25:2880:800
>> RRA:AVERAGE:0.25:92160:100
>> Regardless of the resolution, start and end times used, I can only
>> get 'rrdtool
>> fetch' to return 60, 600, 7200, etc second values.
> Correct, fetch will ONLY return the values in the database - it does
> not do any resampling/consolidation like graph does.
> You could rebuild the rrd to add the resolutions you want, or write a
> script that will consolidate the values for you.

Thanks, Simon!

Are you aware of a utility to rebuild the RRD file with different RRAs?  I 
don't think I can do it with rrdtool dump/restore.

Or is that not possible and I need to recreate the RRD file from scratch?

Thanks again!


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