That means a task which is only run every few years, so there's not much experience with it, and it's harder to test and predict.
You normally prepare for such a task for a month, and then you hope it will work. In my case (I brought down one the core DNS in Austria for a few minutes, for a very trivial oversight) everyone knew, and after the caches ran out we immediately restored the backup. We weren't on page one in the news as Google.
In the Google case they had no idea of the root cause, so they had to run after this guy who caused it. Only after 4 hours they found him, and they could stop this job. Reminds me a bit of Chernobyl, where nobody told anybody.
You normally prepare for such a task for a month, and then you hope it will work. In my case (I brought down one the core DNS in Austria for a few minutes, for a very trivial oversight) everyone knew, and after the caches ran out we immediately restored the backup. We weren't on page one in the news as Google.
In the Google case they had no idea of the root cause, so they had to run after this guy who caused it. Only after 4 hours they found him, and they could stop this job. Reminds me a bit of Chernobyl, where nobody told anybody.