Once a baseline during normal operations is determined, what is the system reporting metrics outside of these expectations called?

The term used to describe system reporting metrics that fall outside of predetermined expectations or baselines during normal operations is known as an anomaly. Anomalies represent deviations from the expected behavior of a system, which can indicate potential issues, underlying problems, security breaches, or performance irregularities. Monitoring for anomalies is crucial in maintaining the health and security of a cloud environment, as it aids in the early detection of issues that could affect overall system performance and reliability.

In the context of operational monitoring, recognizing an anomaly triggers further investigation to determine its cause and impacts, ensuring that corrective actions can be taken in a timely manner. The identification of anomalies is a fundamental aspect of performance monitoring, security monitoring, and incident response within IT and cloud infrastructures.