The value of sysUpTime when the measurements
were reset by setting the cimrMsuProcReset object or
by changing any of the following objects.
cimrMsuRateSampleInterval
cimrMsuRateAcceptableThreshold,
cimrMsuRateWarningThreshold,
cimrMsuRateOverloadedThreshold
cimrMsuProcAcceptableThreshold
cimrMsuProcWarningThreshold
cimrMsuProcOverloadedThreshold
This object will default to the time when instance
was created.