Fault Recovery
Automated backups are created during the backup time window of your GaussDB instances. GaussDB saves automated backups based on the retention period (1 to 732 days) you specified. For details, see Configuring an Automated Backup Policy.
Based on your service requirements, you can:
- Restore data to the original instance, a new instance or an existing instance.
- Restoring a DB Instance to a Specific Point in Time.
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 supports multiple-AZ deployment for cross-AZ DR.
Failover
GaussDB is a multi-node instance. By default, a centralized instance has only one primary node; a distributed instance has only one primary DN and multiple standby DNs. If the primary DN becomes unavailable, GaussDB automatically fails over to a standby DN.
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