Key takeaways
- Start by monitoring services that matter to work, rather than every parameter.
- Every alert should have an owner, priority and instructions.
- Availability monitoring is different from security log analysis.
- The monitoring system itself must also be backed up and access-controlled.
What should you monitor?
The essentials include service availability, CPU and RAM load, disk space, backup status, temperatures, network links and network devices. For applications, it is also worth measuring response time and key transactions.
Infrastructure
Servers, virtualisation, storage, UPS units, routers and switches.
Services
Email, DNS, VPN, databases, applications and websites.
Process
Alerts, escalation, acknowledgement and event closure.
Alerts that lead to action
A threshold should reflect the impact on a service, rather than an arbitrary value. Brief spikes may be delayed, but low disk space, backup unavailability or a failed network link should have a clearly defined priority.
Avoid noise
Hundreds of irrelevant notifications cause critical alarms to be ignored. Thresholds and silences should be tuned regularly after deployment.
Security and costs
Restrict access to dashboards and agents through roles, protect communications and retain configuration backups. The cost depends on the number of hosts, measurement frequency, data retention, integrations and the time needed to handle alerts.
Step-by-step implementation plan
- Select critical services.
- Collect baseline metrics.
- Define thresholds and owners.
- Run a pilot and tests.
- Add dashboards and runbooks.
- Review alerts after changes.
Checklist
- We know which services are critical.
- Alerts have priorities.
- Every alert has an owner.
- The monitoring configuration is backed up.
- Notifications are tested.
- An escalation procedure exists.
Frequently asked questions
Does monitoring place a load on servers?
A small load can be controlled by selecting suitable agents and measurement frequencies.
Is monitoring ping enough?
No. Ping shows whether a host is reachable, but not whether an application or backup is working.
Is Zabbix suitable for a small business?
Yes, if the scope begins with services essential to work and is expanded later.
Do you need clear, useful monitoring?
We can help you select the scope, alerts and response process for your business environment.
Let's talk about your IT