These are just backups, afterall. B2 isn't "just backups", it's meant as on-demand storage like S3. But durability is important for backups too. Have there b

These are just backups, afterall. B2 isn't "just backups", it's meant as on-demand storage like S3. But durability is important for backups too. Have there been any B2 outages, or at least publicized ones? I hope companies don't base storage infrastructure decisions on anecdotal evidence. Yes, science is hard, so coming up with realistic data durability numbers is also hard, but I'd expect a little more rigor than "Science is hard, blue keys on calculators are tricky, and we don’t have years to study things before doing them". If a storage provider doesn't have years to study their own durability guarantees, who does? They claim: The Vault architecture is designed for 99.999999999% (11 x 9s) annual durability. But does this number include the chance of all of the Vaults in the datacenter baking in the heat after a lightning induced power failure knocks out cooling?