[OT] RRD merge problem

[John Oxley]

Hi,

I realise this is off topic, but there is a wealth of experience on this
list.

I have been using smoke ping for some time now, and when I move someone
from one group to another a new RRD is created.  Now there is a whole
bunch of data in the old RRD which I'd really like to recover and merge
in with the new RRD because I don't want to loose my data.

How can I merge two RRD files?

-John