Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

S3 claims 99.999999999 (eleven nines) of durability. This is not comparable S3.


I can claim anything I want and refund you for the time I was offline. How will that help anyone?

>We guarantee 99.9999% storage durability and 99.99% availability over a given year. Each byte is stored on three separate servers in two datacenters at the same time to achieve this level.

99.99% means you are violating your promise if you are down for 53 minutes over a given year[0]. What happens when (not if) this happens? If you would credit me back a couple of bucks and call it even, the whole four nine thing is useless. I don't understand the promise of high availability. On one hand it seems difficult to achieve and on the other hand it seems there is not much penalty for failing your promise.

[0] (3.15569e7*(100-99.99)/100)/(60)


True. On the other hand, S3's record after 7 years has proved to be pretty fantastic, which is even more important.




Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: