Going to have to agree with Don on this one. I have posted this problem Re: Large drives reporting incorrectly as well and would love to see a solution. I am not sure if and how other NMS systems handle this, what I do know is that the last NMS we were using also had this problem.
I saw the same issue on CPU usage (Invalid CPU Statistics (Flaw))
In working with SolarWinds, I posed the following solution, but never got an answer, other than, "we report what SNMP gives us"
Disagree: There should be data validation/integrity taking place. Just because the system is reporting a negative number, doesn't mean it is correct or that ORION should accept it.
Would you believe that I drove -150 miles this week?
I agree.. Orion's a tool, not a SNMP reporter. I all I needed was a SNMP reporter, there's plenty of freeware tools to do that.
SolarWinds just needs to be like the Marines... "improvise, adapt and overcome"
I'll mark this for the PM to review.