Re: Outages
It is basically impossible to guarantee no disruption or outages in even the most tightly controlled and planned test, never mind exercises like this. You can not do things that are likely to result in an outage, but that's as far as you can go. You simply don't know how everything is going to react to anything.
I have shut down a manufacturing production line with no more than a TCP portscan so I know of what I speak.