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SES Global Endpoints (Dec 2024) add $0.03/1k for active-active failover across two regions. MREP decision matrix, replication rules, Tenant Management, and a reproducible readiness benchmark — for architects choosing regional vs multi-region email.
Global Accelerator charges about $0.025 per provisioned accelerator per hour—even while disabled—and adds Data Transfer-Premium on top of normal data transfer. Two static Anycast IPv4 addresses (or four addresses in dual-stack: two IPv4 and two IPv6) front ALBs, NLBs, EC2, or EIPs across Regions; that pricing model changes whether you beat CloudFront or Route 53 latency records alone.
Multi-region AWS architectures can easily cost 2–3× a single-region equivalent when data replication, cross-region transfer, and duplicated managed services are not accounted for. Here is how to architect for resilience without proportional cost growth.
July 2026: AWS Backup plans, Vault Lock, logically air-gapped vaults, cross-account copies, and restore-test cadence — the RPO/RTO discipline that turns “we have backups” into “we restored last week.”
DR plans look great in slide decks. They look different at 3am during a region failover. RTO/RPO targets, cost analysis, and the implementation patterns for backup-and-restore through pilot light, warm standby, and multi-site active-active.