Alert: AdminHostDown

Prometheus cannot scrape node_exporter on 192.168.1.97 (admin-r940 VM).

Impact

Parallel soak health metrics and host telemetry for last1-admin R940 are blind. Production traffic still uses Railway until T3-5 DNS cutover.

Checks

1. ssh admin-r940 'uptime; systemctl status node_exporter docker'
2. ssh admin-r940 'curl -s -o /dev/null -w "%{http_code}\n" http://192.168.1.97:5000/' (expect 200)
3. Proxmox: VM 115 powered on?

Remediation

ssh ryan@192.168.1.97 'sudo systemctl restart node_exporter'
ssh ryan@192.168.1.97 'docker ps; docker restart last1admin-app'

If VM is down, start VMID 115 on pve-r940.

Escalation

Ryan — Tier 3 admin migration. Do not change DNS or tear down Railway without T3-5 approval.