Scaling AWS Managed Microsoft AD: Monitoring and Options
🔍 This post explains how to scale AWS Managed Microsoft AD by choosing between scale-up (edition upgrade to Enterprise) and scale-out (adding domain controller instances), and shows how to use Amazon CloudWatch dashboards to monitor directory health. It highlights key metrics—CPU, memory, disk, I/O, network, and DNS—recommended thresholds, and alerting guidance to inform scale decisions. The guidance recommends preferring reversible scale-out for capacity issues and reserving scale-up for Enterprise-only features such as multi-Region replication and large object counts.
