Fault Recovery
RDS automatically creates backups for your DB instance during a backup window you specify. The backups are stored based on a preset retention period (1 to 732 days).
To restore instance data, you can choose one of the following methods:
RDS for MySQL
- Restoring a DB instance from backups
- Restoring a DB instance to a point in time
- Restoring a table to a point in time
RDS for PostgreSQL
RDS for SQL Server
RDS for MariaDB
Cross-Region Backup
RDS can store backups in a different region from the DB instance for disaster recovery. If the DB instance ever fails, you can use backups in the other region to restore data to a new DB instance.
If you enable cross-region backup, backups are automatically stored in the region you specify.
Multiple-AZ Deployment
An AZ is a physical region where resources have their own independent power supply and networks. AZs are physically isolated but interconnected through a private network. You can deploy primary and standby DB instances in a single AZ or across AZs to achieve failover and high availability.
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