6.1.2. Implement Azure Monitor Alerts

💡 First Principle: Implementing alerts is the fundamental act of transforming passive monitoring into a proactive system that automatically detects and responds to operational issues, ensuring service availability and rapid incident response.

Scenario: You need to set up a system that automatically notifies your on-call team via email if a critical application's web server stops responding. If the issue persists, it should automatically attempt to restart the VM.

This task delves into the practical application of configuring alerts. You'll explore how to:

• Create Alert Rules: Define the conditions and scope that trigger an alert.
• Configure Action Groups: Specify the notification preferences and automated actions to take when an alert fires.

Mastering these concepts is crucial for the AZ-104 exam, as it assesses your ability to implement robust alerting solutions.

⚠️ Common Pitfall: Creating too many noisy alerts ("alert fatigue"). This leads to operators ignoring important notifications. Alerts should be meaningful, actionable, and tuned to avoid false positives.

Key Trade-Offs:

• Alert Sensitivity vs. Alert Noise: A highly sensitive alert rule will detect issues faster but may generate more false positives. A less sensitive rule is more stable but may have a longer detection time.

Reflection Question: How do Azure Monitor alerts and action groups collectively ensure service availability by enabling proactive detection, multi-channel notifications, and automated remediation for operational issues?