Grafana Is Overkill for 3 Servers: Simpler Alternatives Compared
Somewhere in every growing side project, someone says it: "you should really put Grafana on this." And they're not wrong, exactly — Grafana and Prometheus are genuinely excellent. But "excellent" and "what you need for three VPS instances" are different questions.
Here's what that Saturday actually looks like: spin up Prometheus, install node_exporter on every box, write the scrape config, stand up a Grafana container, build a dashboard from scratch (or import one that's 80% wrong for your setup), then write alert rules in PromQL. It works. Six months later something breaks, and you're back in the PromQL docs trying to remember why your rule stopped firing.
That's not a knock on the tools. It's a mismatch between the tool and the job.
What Grafana/Prometheus is actually good at
Credit where it's due, because this isn't a "Grafana bad" post. Prometheus and Grafana are the right call when:
- You've got dozens of servers and need one pane of glass across all of them
- You're tracking custom application metrics, not just disk/CPU/memory
- You need long-term historical data for capacity planning or trend analysis
- Other people — a team, stakeholders, an on-call rotation — need to read the dashboards
- You already have the operational muscle to maintain a monitoring stack as its own piece of infrastructure
If any of that describes your setup, stop reading and go install it. It's the right tool.
Where it's overkill at small scale
For a handful of servers watched by one person, the maths don't work the same way:
- Setup time vs. payoff. A weekend of YAML to get disk-full alerts on three boxes is a bad trade.
- Ongoing maintenance. Exporter versions drift, storage grows, dashboards rot when nobody's touched them in months. Your monitoring stack becomes a second thing you have to monitor.
- You end up babysitting the babysitter. The whole point was to stop worrying about your servers. Instead you're now also maintaining a Prometheus instance.
The simpler alternatives, compared honestly
| Tool | Good for | Where it falls short |
|---|---|---|
| Netdata | Zero-config, gorgeous real-time detail | Noisy — you'll get alerted about entropy pool exhaustion and tcp_accept_queues before you get alerted about the thing you actually care about |
| Uptime Kuma | Clean UI, dead simple up/down checks | Uptime only — it has no idea your disk is at 95%, it just tells you the server was up until it wasn't |
| Beszel | Lightweight, decent dashboard | Wants a binary installed and SSH access into every server you monitor |
| Roll your own cron script | Free, and you already half-have one | No state tracking, so it fires the same alert every 5 minutes forever; no multi-server view; mail setup that breaks the one time you need it |
| Brimfull | One shell script per server, pushes out over HTTPS, no agent, no binary, no inbound ports | Not built for 50+ servers or deep per-process metrics — it's deliberately just disk/CPU/memory |
If you want the three numbers that actually matter — disk, CPU, memory — without installing anything or opening a port, Brimfull is built for exactly that gap: something more finished than a cron script, considerably lighter than a Prometheus stack.
The setup is one line in crontab:
*/5 * * * * BRIMFULL_URL=https://brimfull.dev BRIMFULL_KEY=your-key /usr/local/bin/brimfull-agent.sh
The server pushes metrics out; nothing reaches in. No SSH keys to manage, no ports to open, no daemon running in the background.
Decision guide
- 50+ servers, or need custom app metrics → Grafana/Prometheus. This is genuinely their job.
- Want a full dashboard on top of your own agent, and don't mind SSH access → Beszel.
- Just need a heads-up before disk/CPU/memory overflow on a handful of boxes → Brimfull.
- Only care whether the server is up at all → Uptime Kuma, though pair it with something that watches resources too — by the time uptime fires, it's already too late.
When Grafana is still the right call
Worth saying plainly: don't rip out a working Grafana setup just because the initial install was annoying. If you're running a real fleet, need audit/compliance history, or your team already reads PromQL fluently, the setup cost was a one-time tax you've already paid. The problem isn't Grafana — it's reaching for Grafana on day one for a workload that's three VPS instances and a side project.
For everyone else: match the tool to the number of servers you actually have, not the number you might have someday.