Amazon OpenSearch Service Gets Built-in Cross-Region Disaster Recovery
Amazon OpenSearch Service now handles cross-Region disaster recovery for you—no manual replication needed. Set up paired domains across two Regions with one API call, get sub-minute RPO and under-20-minute RTO, and enjoy zero-downtime switchovers for maintenance. Available today in all commercial AWS Regions at no extra charge.
source: [aws/whats-new]