Fault Rectification
Automated backups are created during the backup window of your DB instances. GaussDB(for MySQL) saves automated backups based on the retention period (1 to 732 days) you specified.
Cross-Region Backups
GaussDB(for MySQL) can store backup files in the storage space that is in a different region from the DB instance for disaster recovery. If a DB instance in a region is faulty, you can use the backup files in another region to restore data to a new DB instance.
After you enable cross-region backup, the backup files 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 an internal network. GaussDB(for MySQL) supports multiple-AZ deployment for cross-AZ DR.
Failover
A GaussDB(for MySQL) instance contains a primary node and multiple read replicas. If a primary node becomes unavailable, GaussDB(for MySQL) automatically fails over to a read replica.
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