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.
The backup runs nightly. The restore got tested never. AWS Backup plans, vault policies, cross-Region copies, and the RPO/RTO discipline that turns "we have backups" into "we tested the restore 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.
