Reduce Alert Noise

This playbook helps you systematically reduce alert noise so that on‑call engineers see fewer, more actionable alerts.

Prerequisites

• Unified Monitoring alerting is in use for at least one environment.
• You have access to recent alert history and on‑call feedback.

Steps

1. Collect data on noisy alerts

   • Identify alerts that fire frequently but rarely lead to action.
   • Gather feedback from on‑call engineers about which alerts they consider noisy.

2. Classify noise sources

   • Too‑sensitive thresholds (for example, CPU spikes that self‑resolve).
   • Duplicate alerts from multiple tools reporting the same issue.
   • Alerts during planned maintenance.
   • Alerts for non‑critical systems or environments.

3. Apply fixes

   • Adjust thresholds and evaluation windows to reduce flapping.
   • Consolidate overlapping policies or rely on a single authoritative signal.
   • Introduce or refine maintenance windows and silences.
   • Downgrade low‑impact alerts to info or route them to chat instead of paging.

4. Add runbooks and ownership

   • Ensure each alert has a documented runbook or response guideline.
   • Confirm that alerts are routed using CMDB ownership so they reach the right team.

5. Monitor progress

   • Track alert volume by service, environment, and severity over time.
   • Periodically repeat this exercise, especially after major changes to systems or integrations.