[rrd-users] MAX-value differs for week/month

peter pilsl pilsl at goldfisch.at
Sun Jan 9 22:15:03 MET 2005

I want to keep my data over a longer time and I want to keep the 
average-values and the max-values. So I use different RRA with AVERAGE 
and MAX as CF and a different step-value




Then in rrdgraph I use the MAX-CF to GPRINT the maximum value over the 
viewed time. For my DEF-statement I also use the AVERAGE.

GPRINT:total0:MAX: maximum %2.1lf

 From my point of view the MAX GPRINTed in the "day-view" (-s "-1day") 
should not be higher than the MAX printed in the "week-view" (-s 
"-1week") or the "month-view" (-s "-1month"), cause I store the 
max-values in my RRD.

But it differs. The MAX in day is highest and then the week is lower and 
so on. It seems that the MAX in GPRINT only takes the maximum of the 
actually drawn values and not the MAX of the RRD, cause the problem does 
not occure if I use MAX as CF for DEF, which is not what I want.

Is this a bug or a feature  and is there any way round?


ps: I just switched from MRTG to RRD : wow - this is just great !! thnx 
to the author(s) :)

mag. peter pilsl
tel +43 699 1 3574035
fax +43 699 4 3574035
pilsl at goldfisch.at

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