[rrd-users] Adding RRAs to an RRD?

Andreas Schildbach andreas at schildbach.de
Thu May 18 00:15:55 MEST 2006

Hello everyone,

I'd like to add some RRAs to an RRD. Currently, the RRD has the 
following pdp_per_row's:

- 1
- 30
- 180

The target RRD should have these pdp_per_row's:

- 1
- 7
- 30
- 180
- 720

Is there a tool available that does the trick? There is two more nice to 

- the conversion should be fast enough that no serious data gaps appear

- the newly created RRAs should be populated with everything that can be 
calculated from the other RRAs. For example, the 7 RRA can fetch values 
from the 1 and 30 RRAs, with preference on downsampling rather than 



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