Equinix in Sydney plonked 2 datacenters right on top of each other, and still insists that they are useful as redundant sites.
There was a locally very funny situation for a while when a tech influencer was insisting both equinix sites could be shut down by a single building collapse. He was wrong, but he wasn't so wrong that people shouldn't make better infrastructure decisions.
The building in question wasnt really tall enough. And would have to be precision demolished to collapse in the way he was afraid of.
It would still cause chaos and possible power issues.
Needs to be taken in context with some Sydney buildings having maintenance defects a few years after they open. Largely due to inferior materials imported from china. The building in question developed some cracks in supporting beams and was briefly evacuated. There was never a chance it was going to topple on its own in a way that impacted more than 1/2 datacenters, so he pivoted to possible terrorism, but even thats largely nonsensical.
I just went hunting for the case and couldnt find it. The gentleman in question had published the claim to his business that was it happens trying to build contacts with defense and intelligence agencies for third party threat assessment. As far as I can tell the business no longer exists and he has deleted their footprint.
But he also posted the claim on public mailing lists so I can probably trawl it up if necessary.
There was a locally very funny situation for a while when a tech influencer was insisting both equinix sites could be shut down by a single building collapse. He was wrong, but he wasn't so wrong that people shouldn't make better infrastructure decisions.