Starting today, Amazon EC2 Capacity Manager supports tag-based dimensions, enabling you to use tags from your EC2 resources to group and filter capacity metrics. EC2 Capacity Manager helps you monitor and optimize capacity usage across On-Demand Instances, Spot Instances, and Capacity Reservations. This launch also introduces Account Name as a new built-in dimension.

You can activate up to five custom tag keys — such as environment, team, or cost-center — and use them alongside built-in dimensions like Region, Instance Type, and Availability Zone to group and filter capacity metrics by tag values in the console and APIs, and include tag data as additional columns in newly created S3 data exports. Capacity Manager also includes four Capacity Manager-provided tags by default: EC2 Auto Scaling group name, EKS cluster name, EKS Kubernetes node pool, and Karpenter node pool. The new Account Name dimension makes it easier to identify accounts when analyzing cross-account capacity data across your organization.

This feature is available in all AWS Regions where EC2 Capacity Manager is available. To get started, navigate to the Settings tab in Capacity Manager and choose Manage tag keys, or use the AWS CLI. To learn more, see Managing monitored tag keys in the Amazon EC2 User Guide. For more information about Amazon EC2 Capacity Manager, visit the EC2 Capacity Manager documentation.