Try Convincing IT Owners you need to test Resiliency
This may be a little long but i think background is required..
I have spent most of the last 3 years with my team, Me + 1, preaching that you need to test resiliency (DR). Since this is a very large org, it was decided all IT, with limited exceptions would be migrated to "The Cloud".
The App Dev teams all look at you like" you do not know what you are talking about" when you mention it early on in the dev cycle.
The cloud is always on, we are in multiple compute zones, we can auto failover if there is a problem.
Me: Are you in multiple geographically dispersed zones?
Them: no no need to be the cloud is always available.
Me: So you decided not to follow the corp architecture guidelines for mission critical applications.
Them: We were not willing to incur that expense.
Me: What happens if the datacenter where this is located becomes unreachable?
Them: Can't happen.
Then you know what happens next, the Zones became unavailable and only those who followed the corp standard and actually tested the recovery, were able to continue with on like nothing happened.
The others had to explain why they did not and having a email trail from the Resiliency Team to the various businesses that did not follow standards and resiliency test had a lot of explaining to do and there were a few head that rolled.
But since I am just an engineer and don't understand tech, I was ignored, but not anymore...