Amazon's built-in CloudWatch monitoring service can be used to collect Amazon EBS metrics and status checks. This can be done through the CloudWatch or EC2 web consoles, AWS command line tool, or a program or third-party monitoring service that connects to the CloudWatch API. To monitor CloudWatch metrics, users need access to a user account or role whose security policy grants minimal permissions needed to manage the CloudWatch and EBS APIs. CloudWatch collects metrics through a hypervisor from any AWS services used in an infrastructure. It provides two complementary ways to aggregate data: periods and statistics. The period sets the timespan, in seconds, over which CloudWatch will aggregate a metric into data points. Statistics are different ways to aggregate the data over the collection period. There are three primary ways to view EBS metrics from CloudWatch: via the AWS web console, via the AWS CLI, and via a third-party tool that integrates with the CloudWatch API.