- Memory Usage of EC2 instance is not monitored by default. Custom checks must be created.
CPU Usage, Disk Read operations, Network In and Estimated charges are monitored by default.
- By default, metrics are stored at 1-minute resolution in CloudWatch. Default Granularity is 1 minute.
- Cloudwatch store the logs for terminated EC2 and EBS volumes for 15 Months by default.
- Retention period of the monitored logs depend on the data points.