Disk & storage
Free space, drive health, and storage capacity. Pair with capture.value checks that alert when free space falls below a threshold.
Disk free (Linux / macOS)
Reports free GB and used % for the root filesystem. Trivial cron one-liner; pair with capture.value.
Disk inventory + free space (Windows)
Enumerates every physical disk (internal + external) and every volume. Reports capacity, free space, SMART health, drive type (SSD/HDD), bus type (USB / SATA / NVMe / SCSI), Windows disk number, drive letters, and per-partition details. Pair with capture.value and pick the path that matters — e.g. <code>volumes.C.free_gb</code>, <code>disks.disk_0.health</code>, or <code>any_unhealthy</code>.
Physical drive health (Windows)
Reports SMART-derived health status for every physical disk (Healthy / Warning / Unhealthy). Catches failing disks before they take the array down.
Synology NAS disk health (DSM API)
Logs into a Synology DSM 7 NAS via its HTTP API, reads each disk's health/status/temperature, and posts a summary. Use a dedicated read-only DSM account for `$User` (not your admin login). The login + cookie session avoids embedding long-lived API keys.
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