[rrd-users] CDEF Help

Steve Shipway s.shipway at auckland.ac.nz
Sat Jun 1 06:27:11 CEST 2013

This is because, MaxRn and MinRn are VDEFs, and so have a single value and can be printed.  R24Hr, on the other hand, is a CDEF, and (like a DEF) is a time series.  Therefore, you also need to specify a CF (MIN, MAX, AVERAGE) so that it can reduce it to a single value.  The better way, though, is to make a VDEF and use that instead.


Steve Shipway
University of Auckland ITS
UNIX Systems Design Lead
s.shipway at auckland.ac.nz
Ph: +64 9 373 7599 ext 86487


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