In our case, we've worked with our storage vendor on setting up these thresholds. In our case, we have multiple arrays with different hardware configurations: some have 6 FC ports, some have 12 for the same array model and disk type. Another one has different drive types and number of controllers. The way we approached this issue was to first customize thresholds for each array separately based on Solarwinds baselines. Second, we provided the vendor with performance reports from the array itself along with the configured thresholds. Last step was to compare these SRM thresholds with raw performance data collected from the array and adjust where necessary. For the most part, SRM baselines were on par with raw performance data collected from the arrays and installed hardware.