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sgt • yesterday at 5:50 PM • 1 reply • view on HN

Meanwhile, just using disks and regular servers is still reliable and more so than ever, especially with some redundancy.

Consider your cloud costs.


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shye • yesterday at 7:44 PM

If you there's no SLAs to engineer for, just set the target at zero, and drive your cost to zero as well. So you have to design for _some_ defined value of reliability.

Backblaze's famous reports put HD failure rate is ~1.39%, so for the 11 9s you get as a guarantee from S3. Assuming nothing else fails, you'd need at least 6 independent copies to get that, plus all the effort to engineer recovery, and constant upkeep.

Suddenly, S3, even when considering bandwidth costs, seems like a steal.

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