Files
pulse/pkg/diskinventory
rcourtman 95b29286dd Stop serving retained disk temperatures as current readings
Normalization may keep a disk temperature it did not collect (a disk in
standby, a host agent past its reporting lease) as long as its collection
state says so. Two consumers still presented that value as current.

The metrics-history handler answered an empty disk range with the disk's
temperature as a "live" point at now, regardless of its state. Since the
history writers stopped recording retained temperatures, a short-range
chart for a silent agent's disk or a sleeping disk showed the retained
value as a fresh reading. Mock mode also seeded synthetic series from it
and padded sparse stored series out to now. All of these now require a
temperature collected now (diskinventory.TemperatureCollected, the
shared form of the rule the history writers apply).

Unraid array-inventory rows carry no per-field provenance, so a
temperature taken from one looked collected after the agent went silent.
The adapter now derives its state from the host lease that
ExpireHostTelemetry already records, and from the disk's spin state:
unavailable once the host is offline or the disk is spun down. A SMART
row that borrows the inventory reading takes that state, including
available. The native row records only the withdrawing states, because
the registry merge picks temperature and state separately and an
available claim from it would mask the SMART row's own state. A
withdrawn inventory temperature no longer counts as heat in disk risk.
2026-10-06 20:16:38 +01:00
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