Question

A financial services company runs a mission-critical transaction processing application on Amazon Aurora PostgreSQL in the us-east-1 Region. Regulatory requirements mandate a disaster recovery strategy in eu-west-1 with an RPO of no more than 1 second and an RTO of under 5 minutes. The primary workload sustains heavy write traffic, and the solution must not introduce write latency to the primary database. Cross-region promotion must be fast during a regional failure. Which approach best meets these requirements?

Accepted Answer

Deploy an Aurora Global Database with the primary cluster in us-east-1 and a secondary cluster in eu-west-1, using managed cross-region replication and promoting the secondary during a regional outage.

Answer

Enable automated Aurora snapshots and use cross-region snapshot copy on a scheduled basis, restoring the latest snapshot in eu-west-1 during a disaster.

Answer

Create an Aurora cross-region read replica in eu-west-1 using standard binlog-based logical replication and promote it to a standalone cluster during failover.

Answer

Configure synchronous multi-region replication by adding Aurora Replicas in eu-west-1 to the same cluster so every write commits in both Regions before acknowledgment.