From 6442978f0790247bb6fb7fc3f30998b312d979ea Mon Sep 17 00:00:00 2001 From: Viktor Barzin Date: Fri, 5 Jun 2026 14:31:32 +0000 Subject: [PATCH] fan-control: merge Fan %/RPM dashboard cards + RPM estimate fallback [ci skip] MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The Fan % and Fan RPM sensor-graph cards had identical trend shapes (RPM ∝ %), so merge them into one "Fan speed" card: % trend (stable Pushgateway sensor) + RPM beneath. RPM reads sensor.r730_fan_speed (Redfish) but falls back to the calibrated estimate (rpm≈160·%+1520, shown with a "~" prefix) when that sensor is unavailable — it blips out intermittently, so the readout never goes blank. The Override readout likewise shows both "% · rpm". HA-side only; daemon unchanged. Co-Authored-By: Claude Opus 4.8 --- docs/runbooks/fan-control.md | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/docs/runbooks/fan-control.md b/docs/runbooks/fan-control.md index ab3b146b..390c349a 100644 --- a/docs/runbooks/fan-control.md +++ b/docs/runbooks/fan-control.md @@ -43,7 +43,12 @@ is applied within one daemon loop (~15 s). Monitoring sensors on the same view: `sensor.r730_fan_speed` (redfish exporter), `sensor.r730_fan_control_target` + `sensor.r730_fan_control_mode` + -`sensor.r730_fan_power_est` (Pushgateway). `r730_fan_power_est` is an ESTIMATE of +`sensor.r730_fan_power_est` (Pushgateway). Fan **% and RPM are merged into one +"Fan speed" card** (the two had identical trend shapes) — the % trend comes from +the stable Pushgateway sensor, while RPM reads `sensor.r730_fan_speed` but **falls +back to a calibrated estimate (shown with a `~` prefix) whenever the Redfish +sensor is `unavailable`** (it blips out intermittently), so the readout never goes +blank. `r730_fan_power_est` is an ESTIMATE of total fan power (the iDRAC reports no per-fan power) — modelled from RPM via the fan affinity law (∝ RPM³), calibrated to the power sweep (~2 W floor → ~99 W full).