PolarDB for PostgreSQL(Compatible with Oracle) uses the multi-zone feature, and the backup and restoration feature to ensure high reliability.

Multi-zone deployment that supports the storage of up to six replicas

PolarDB for PostgreSQL(Compatible with Oracle) stores data in multiple zones. Each data record can have up to six replicas to ensure reliability across data centers.

Fast backup

PolarDB for Oracle uses the snapshot technology at the underlying distributed storage layer to back up data. This way, less than 5 minutes are required to back up 100 TB of data. This allows you to back up business data before each system upgrade or cutover to ensure the security of business data. The fast backup capabilities make PolarDB widely used in industries such as gaming.

Lock-free backup

The entire backup process is implemented at the storage layer by creating consistent snapshots. This operation is transparent to databases and does not require locks on databases. This ensures that the backup does not affect your business, improves the backup efficiency, and minimizes the impact on the entire system.