Keep the question small
This entry preserves the monitoring thread from the original archive. The public material is an outline, rather than a finished hardware case study.
The useful question is rarely just whether a process exists. A model endpoint should answer a bounded request. A media service should be reachable through its intended route. Storage should have enough room for the next ordinary operation.
Evidence to add
A real device photo, a sanitized check definition, and one incident where an alert changed the response. Until those are published, the archive illustration remains an illustration and no uptime figure is claimed here.