useful information about how we use S3 got lost in the website reorganisation

[daira]

https://github.com/LeastAuthority/leastauthority.com/blob/master/lae_site/templates/products.html#L37

Where is the data stored?

Your data, encrypted, is stored on Amazon's Simple Storage Service (S3), which is a convenient, reliable, and widely understood platform for storage.

Data is replicated according to the following policy decribed in Amazon's Overview of Security Processes:

Data stored in Amazon S3, Amazon SimpleDB, or Amazon Elastic Block Store (EBS) is redundantly stored in multiple physical locations as part of normal operation of those services and at no additional charge. Amazon S3 and Amazon SimpleDB provide object durability by storing objects multiple times across multiple Availability Zones on the initial write and then actively doing further replication in the event of device unavailability or detected bit-rot.

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There may be other information in that file that should be transferred to the new site.

[aldeka]

Readded copy in branch fix-72.

[daira]

Actually now that I check, the current version of the Overview of Security Processes doc says this instead:

Amazon S3 is designed to provide 99.999999999% durability and 99.99% availability of objects over a given year. Objects are redundantly stored on multiple devices across multiple facilities in an Amazon S3 region. To help provide durability, Amazon S3 PUT and COPY operations synchronously store customer data across multiple facilities before returning SUCCESS. Once stored, Amazon S3 helps maintain the durability of the objects by quickly detecting and repairing any lost redundancy. Amazon S3 also regularly verifies the integrity of data stored using checksums. If corruption is detected, it is repaired using redundant data. In addition, Amazon S3 calculates checksums on all network traffic to detect corruption of data packets when storing or retrieving data.

Unfortunately I find the 99.99% availability claim not credible, so I'm reluctant to repeat it :-(