In the area of IT infrastructure management, three terms often surface: observability, monitoring, and telemetry. These concepts, while interconnected, each play a unique role in maintaining system health and performance. Observability, monitoring, and telemetry form the backbone of any robust IT environment. Yet, their differences and interrelations can sometimes blur, leading to confusion. This article aims to demystify these terms, providing clarity on their distinct roles and how they work together.

In this post we will take a look at the icingadb check command built into Icinga 2 for monitoring the health of Icinga DB. If you have already configured it, this blog post will give you some insights on what it actually checks, otherwise, it showcases what useful health checks you are missing out on and should serve as a motivation to enable the check.