Remember that 😏

I used to work with banks and old mainframes and they would regularly have 'disaster recovery tests' and that meant testing parts of or outright shifting production activity from the main location to a remote location.

When telco circuits would inevitably go down I used to cal those "surprise disaster recovery tests".

One bank VP even took to using that term often enough that it became the usual phrase used when it was decided that they were down long enough that they actually had shift production activity to a backup site.

Not uncommon on conference calls was the inevitable discussion about:

"So at what time do we call it and make this a surprise DR test?"

"If it isn't up by 3am we call it."