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Comment by plantain | Hacker News Reader

They're not equivalent. B2 is singly homed.

So is S3. You have to pick the region (home) for the data when you create the bucket.

From https://aws.amazon.com/s3/ and https://aws.amazon.com/s3/details/

    Data is automatically distributed across a minimum 
    of three physical facilities that are geographically
    separated by at least 10 kilometers within an AWS Region
    
    Designed for 99.999999999% durability and 99.99%
    availability of objects over a given year.
    
    Designed to sustain the concurrent loss of data in two facilities.

From https://www.backblaze.com/b2/cloud-storage.html

    Uptime: 99.9% SLA

    Reliability: 99.999999% durability

So S3 is 10x more available, 1000x more durable, and datacenter redundant.

Eleven 9s of durability is an utterly farcical guarantee from a decade old service. A single big durability event in the next century would irrevocably decimate that record. They really might as well claim 100% durability, because it is no less plausible.

I mean, what are the odds that S3 will even be operating in 100 years? I'll certainly put $1 against $1,000,000,000 that it won't, and that's only one many ways it could fail the standard.

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