Collects and manages operational data Three things:

1. Metrics: data relating to AWS products, apps, on-prem solutions
2. Logs
3. Events : AWS services and schedules

Namespace

Container for monitoring data. Naming can be anything so long as it’s not AWS/service such as AWS/EC2. This is used for all metric data of that service

Metric

Time ordered set of data points such as:

• CPU Usage
• Network IN/OUT
• Disk IO

This is not for a specific server. This could get things from different servers.

Anytime CPU Utilization is reported, the datapoint will report:

• Timestamp = 2019-12-03
• Value = 98.3

Dimensions could be used to get metrics for a specific instance or type of instance, among others. They separate data points for different things or perspectives within the same metric.

Alarms

Has two states ok or alarm. A notification could be sent to an SNS topic or an action could be performed based on an alarm state. Third state can be insufficient data state. Not a problem, just wait.

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