Amazon CloudWatch Metrics for Amazon S3 now includes storage metrics for Amazon Glacier and S3 OneZone-Infrequent Access (S3 One Zone-IA) storage classes in the AWS GovCloud (US) Region. Storage that has been uploaded to S3 One Zone-IA or transitioned to S3 One Zone-IA or Amazon Glacier from S3 Standard or S3 Standard-IA storage classes using S3 Lifecycle policies will be available in CloudWatch storage metrics. These storage metrics will also include object overhead bytes applied to objects in Amazon Glacier and small objects in S3 Standard-IA and S3 One Zone-IA.