I have a several Netapp storage backup processes that give a "last total transferred" as an SNMP value. This number changes once the next backup process is completed. I pull this value using PRTG and while it records the value as "Volume", it calculates a proposed "Speed" and displays the speed on the graph (not the volume which is the number that I need).
For example: If I have a backup that transfers 2,111MB, at the end the SNMP value changes to 2111. With a 30sec scheduled interval, PRTG calculates a 70MB/s transfer rate and displays that on the graph. Essentially, the graph is wrong because that's not the actual speed, nor is it the value I want displayed.
I also have some custom sensors that are referring to these channels to sum all backup transfers which obviously are wrong too.
How do I get the correct value displayed on the graph? Is it a specific Unit configuration that is needed and if so, what unit?