Every minute a request is sent to the Sensaru Cloud. A successful response means the cloud is reachable; a timeout, network problem, or any unsuccessful response means it is not.
Health is a comprehensive probe that runs every minute across the entire Sensaru Cloud platform — covering every backend service and every node it runs on. For each one, the probe verifies that internal telemetry is up to date and that every operational metric stays within its expected range: available memory and memory utilization, system load, thread-pool utilization, request and inter-service latencies, queue depths for outbound device messages, and the count of connected device gateways. If any metric is outside its threshold or any service has stopped reporting fresh data, the probe returns an error.
A green bar means the corresponding check passed; coloured bars indicate at least one failure. The Health thresholds are deliberately conservative — designed to surface potential issues early, well before they could reach the point of affecting users. A coloured Health bar therefore does not necessarily mean the cloud was unavailable.