Cacti

Thanks. After several bleary eyed nights I figured I would just need multiple RRA schedules to marry up with my data source poll intervals. I would up including the data source poll interval as part of the name of the RRA so I could keep track which RRA to use with each data source based on the poll...

You could always change the default output format for the probe to F. Then you would not need a CDEF. That is what I did. then query OID 1.3.6.1.4.1.318.1.1.10.2.3.2.1.4.1

You will get the temp output in F instead of C.

If you set these values for steps and rows on a per RRA value, then isn't this dependant on how often your data sources are polled? i.e. If I poll a device every 300 seconds (5 minutes) instead of every 60 seconds, won't I then have 25 minutes worth of time being represented for the 5 minute average...