alt Hacker NewsNightly? what happens in between and how many different sites? What happens if your Internet goes down one night? How many parity drives do you have? Will the array survive replacing a drive or will another one die during the sync will you lose data if that happens?
S3 takes replication seriously to a professional level, when you upload a file to S3 the chance of s3 losing it is capped by the chance of a civilization killing asteroid hitting the earth.
Yes. Nothing, one site. The backup gets taken the next night. One. Yes. Yes.
What happens if your drive dies just as you're uploading the file to S3? Why are we comparing the durability of S3 to the reliability of my Internet connection, instead of to the durability of rsync.net?