Availability copies are not historical recovery#
High availability tries to keep service running through expected failures. Disaster recovery restores service and data after severe events such as region loss, accidental deletion, corruption, ransomware, or operator error.
Replication can faithfully copy DELETE important_table or corruption everywhere. Snapshots, continuous or log-based backups, cross-region copies, cold or warm standby, and documented recovery procedures protect different scenarios.
Related practice problems
Use the manifest-backed prompts below to apply this lesson in a complete design.
- Use defined recovery strategies to meet recovery objectivesAWS Well-Architected Framework
Reach this point to mark the lesson as read.