What should be monitored

If a server disk fills up, backup fails, SSL certificate expires or the internet link drops, users experience it as downtime. Monitoring should catch these signals earlier.

The best monitoring is tied to business services: email, application, file server, VPN, internet, backup and critical devices.

  • Server CPU, RAM and disk
  • Backup job status
  • Internet link and latency
  • VPN tunnels
  • SSL certificates
  • HTTP health endpoints

Alerts that make sense

If every small thing sends an alarm, people stop reacting. An alert needs threshold, severity and owner: who receives it, who checks it and what the next step is.

Properly tuned alerts separate information, warning and urgent incident.

Trend matters more than one value

A disk that is 80% full today is not the same issue if it grows 1% per month or 10% per week. Monitoring should show trend because trend gives planning time.

The same applies to backup duration, server load, internet stability and network error counts.

What the client receives

The client should not read hundreds of metrics. They need clear status: what works, what is risky, what was fixed and what should be planned.

That is why monitoring is most valuable when paired with a monthly IT report and concrete recommendations.