Servers
Machines — vitals, listeners, processes, disk prediction and what is running where.
Monitor → Servers lists every machine AccelerUp knows about.
Servers arrive two ways: from an infrastructure integration, or by installing the agent on them.
What is reported
| Vitals | CPU, memory, disk, load, uptime |
| Clock drift | Measured via adjtimex — a drifting clock quietly corrupts every time-based comparison on the box |
| Listeners | Which ports are open and what is behind them |
| Processes | What is running |
| Units | systemd unit state |
| Disk prediction | Time-to-full, from the trend rather than the current percentage |
Disk time-to-full
A disk at 71% is not interesting. A disk at 71% that was at 40% this morning is.
AccelerUp predicts time-to-full from the trend and alerts on the prediction, which gives you the one thing a percentage threshold cannot: warning while there is still time to act.
Listener baseline
The set of listening ports on a machine is recorded as a baseline. A new listener appearing is worth knowing about — it is either a deployment you meant or something you did not.
A server is not a service
One server runs several services; one service runs on several servers. Both directions are one click: from a server, what runs here; from a service, which boxes it is on.
This is also what makes per-server deployment health work — see Per-server rollout.
Alerting
Server rules are agent rules: CPU, memory, disk, disk prediction, unit state, log patterns, probe results, clock drift.
They can trigger actions as well as alerts — restarting a unit, for example — under three guardrails. See Rules and silences.
Servers with no agent
A server discovered from an integration but with no agent shows what the integration knows and nothing more: no processes, no units, no terminal.
Coverage lists exactly these — machines that exist and are not being watched properly.
Where this behaviour lives: frontend/src/app/infra/, backend/internal/service/agent_metrics_svc.go. If the code and this page disagree, the code is right — please fix the page.
Part of Monitor — Everything that watches something and reports what it saw.