Comment by mitxela
8 hours ago
S3 is advertised as having 11 9's. That means in the entire history of S3 they've only lost a handful of objects, and will continue to lose objects at this same rate.
8 hours ago
S3 is advertised as having 11 9's. That means in the entire history of S3 they've only lost a handful of objects, and will continue to lose objects at this same rate.
You are confusing the concepts, and applying the 11 nines to the wrong problem.
Durability is about: "If I successfully store an object in S3, how unlikely is S3 to permanently lose that object because of storage failures?"
It does not answer: "Will I be able to access that object, after a rain of Shahab-1 or Shahab-2 burn all data centers in the 3 availability regions across which my S3 bucket is spread out..."
Eleven nines covers ordinary infrastructure failures, not acts of war that physically destroy the underlying facilities.
It's similar to any engineered artifact, like a skyscraper. They have a structural safety factor that defines their resilience to failures that the system is designed to tolerate, it doesn't make them immune to missile strikes.