A thousand alerts no one reads anymore is not monitoring. This is how observation becomes a real early-warning system.
Many companies monitor their IT – and still don't feel secure. The reason: an excess of alerts is just as dangerous as too few. When hundreds of notifications arrive every day, the one important message gets lost.
Good monitoring is therefore not a question of quantity, but of relevance. What matters is whether a signal is detected in time, assessed correctly and passed to the right person with a clear action.
Alert fatigue arises when teams receive so many notifications that they start ignoring them. Every false alarm lowers attention for the next one. In the end, the real incident is overlooked – not out of negligence, but because the signal disappears in the noise.
How long does a request take?
How close is a system to its capacity limit?
How many requests fail?
Is the service running at all?
Complemented by a few business-related metrics, this creates a picture that really tells you whether a service is running stably and whether users or business processes are affected.
An alert should only be triggered when a human actually has to do something. Thresholds should therefore be based on real impact, not on arbitrary numbers. High CPU utilization is not automatically a problem, as long as response times, error rates and user experience are fine.
An alert without clear ownership fizzles out. Every notification needs two answers: who is responsible, and what specifically should be done? Only then does monitoring turn from a mere display into a controllable operational process.
For important alerts, add a short runbook: what does the message mean, what are the first checks, when do you escalate? This lets even the on-call team act confidently at night, without having to gather knowledge first.
Well set-up monitoring detects trends before they become a problem: storage that slowly fills up, a response time that rises over weeks, or error rates that creep upward. Those who see such developments early plan maintenance calmly – instead of fixing an outage at night.
