What is RDS Automatic Host Replacement?
Synchronously replicates your data to a standby instance in a different Availability Zone (AZ).
Backup your database and transaction logs and store both for a user-specified retention period
Multi-AZ deployments provide enhanced availability and durability for database instances, making them a natural fit for production database workloads
Automatically replace the compute instance powering your deployment in the event of a hardware failure.
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