When I upgraded two 9124e switches from 3.1(2a) to 3.3(1c) NPV got enabled and the switches cold booted. The other two that I upgraded did not get NPV enabled (nor did they cold boot). The only difference I can see between the switches is the two that have NPV enabled were once running 3.3(1a) and were downgraded to 3.1(2a).
The enabling of NPV caused an outage for all of the blades using these two switches. I need to upgrade two more switches that were once running 3.3(1a) and don't want NPV to get enabled from the upgrade. Is there anyway to make sure that this doesn't happen?