“Everything fails all the time” is a famous quote by Amazon’s chief technical officer, Werner Vogels. Most AWS services have been designed for high availability, and they do rise up like a phoenix whenever a failure occurs. But what happens if an entire region or availability zone encounters an outage? In such a scenario, it would be wise to have a backup, and most distributed systems do have continuous backups. But that is just one part of making your system resilient. The bulk ...
4. Disaster Recovery Architectures
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