Updated on 2023-09-13 GMT+08:00

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

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.