Observed arrival · 2026-09-14

Node Disk Sentinel Watches the Disks Beneath Kubernetes

node-disk-sentinel.org Observed source

Editorial interest 82/100 Selection signal · not a rating of the site

A Kubernetes DaemonSet discovers physical disks, assesses their health, publishes PhysicalDisk resources, and exports Prometheus telemetry.

Landing page captured for the 2026-09-14 issue.

Field notes

The operator combines udev discovery, Netlink hotplug events, and a privileged smartctl runner before writing results into cluster-scoped PhysicalDisk resources. Its health inputs include NVMe spare capacity, critical warnings, media errors, wear percentage, and SCSI error counters, while its Prometheus endpoint exposes smartctl_device_* metrics on port 8080. The page also documents separate CRD and monitor Helm charts.

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○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

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