[rrd-users] Can a graph be created that aggregates a set of (identically structured) rrd files?
jeff at thegilmores.net
Thu Jul 7 22:29:43 CEST 2011
I am new to RRD and still trying to wrap my mind around the power of this excellent tool. I am working on an application to use RRD to store electricity meter data for a group of homes. I am expecting to create an RRD file for each home, and it will have a number of RRA's defined for various time periods.
In addition to displaying the individual house data graphs, I would like to also create graphs that show aggregated results drawn from the house RRD files. For example, I might show the combined power draw in watts for the 8 homes that make up a quadrant of my neighborhood, or show the total power draw from all 30 homes.
Is there a reasonably-straightforward way to do this in RRD?
Any suggestions will be appreciated.
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