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Amazon doesn't talk about this much and the servers are intentionally locked down, so it's hard to be completely sure. They're EC2 instances that run a custom AMI and have automation tools - in-house, or something like Puppet/Chef/etc. These automation tools communicate with the AWS control panel over web service APIs, SSH push access, etc, and are ...


The Multi-AZ feature does not use MySQL's native replication features. Quoting their documentation, "Multi-AZ deployments for Oracle, PostgreSQL, and MySQL DB instances use Amazon technology, while SQL Server DB instances use SQL Server Mirroring." It seems likely that they're doing replication at the storage level and not depending on binary logs. However, ...

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