Extract the fan peak-tracking into observedPeakStore (observe max under
load, hold >= minHold to reject spikes, round, persist JSON) and add a
second instance for PSU draw (psu-observation.json, keyed by PSU
ordinal). Fed from samplePSUPower like fans are from sampleFanSpeeds, so
any full-load run refines it — the Fan Ceiling Check (which also samples
PSU power at a slow cadence off its loop and writes psu_<i>_peak_w), a
burn, thermal cycling, and the 5s web metrics collector.
/topo PSU cards now scale the load fill by wattage_w when the BMC
reports it, else by the observed peak draw — marked "~N% load". This
MSI stand's BMC gives only instantaneous input power, so the observed
peak is the only capacity figure available.
Fan behaviour is unchanged (tests exercise updateFanObservation /
estimateFanDutyCyclePctFromObservation / ResolveFanMaxRPM through the
new store).
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VHG21rgTUiR1G3qFHTVmN
Same idea as the fan duty-cycle fill: a bar rising from the bottom of
each PSU card for draw / nameplate rating, live-updated on the shared
5s /api/metrics/latest poll. Drawn only when the rating (wattage_w) is
known — a raw wattage with nothing to scale against is not a load
figure, so BMCs that report only input power (e.g. this MSI stand) keep
showing the plain watts. Detail line becomes "<v> V · <draw> / <rating> W
· <n>% load" when both are present.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VHG21rgTUiR1G3qFHTVmN
Each PSU is its own card, coloured by its own status — a failed unit
goes red on its own instead of dragging a single grouped card down —
and shows input voltage + draw (measured output/input, else nameplate
rating). Cards click through to the PSU detail modal and carry data-psu
so the shared topoLiveScript refreshes their wattage from
/api/metrics/latest on the same 5s poll as the fan tiles.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VHG21rgTUiR1G3qFHTVmN
Each fan tile carries data-fan / data-ceil / data-measured and a small
script polls /api/metrics/latest every 5s — the metrics collector's own
sampling period, served from memory with no extra BMC call — updating
each tile's spin rate, duty fill and tooltip in place. Polling faster
would only re-read identical numbers; sampling the BMC faster would
choke it under load. FanReading gains json tags for the endpoint.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VHG21rgTUiR1G3qFHTVmN
- GPU load switches from bee-gpu-burn (compute burn, ~88% TDP) to
dcgmproftester -t 1004 / targeted_power via
resolveBenchmarkPowerLoadCommand — the same engine Power/Thermal Fit
uses and the hottest sustained NVIDIA load we have, so fans are
actually pushed toward their ceiling.
- Sample loop is now IPMI-hang-proof: every ipmitool read is time-boxed
in an abandonable goroutine, and the poll interval backs off
geometrically (1s→30s) when reads are slow, tightening again on
recovery. A plateau is only trusted while telemetry is healthy;
degraded runs ride out to MaxLoadSec. Summary gains fan_samples /
telemetry_degraded. Drops the per-second nvidia-smi+power+cpu-temp
sampling from the hot loop.
- Dead code removed: FanStressRow, GPUStressMetric, sampleFanStressRow,
sampleGPUStressMetrics, WriteFanStressCSV/WriteFanSensorsCSV,
analyzeMaxTemp, sampleSystemPowerResolved.
Topology fan tiles:
- size encodes the fan's ceiling RPM (its class), not current speed;
coloured fill rising from the bottom encodes live duty cycle
(current / ceiling), shown only when the ceiling was measured.
- glyph spin rate now maps absolute RPM into a human-perceptible band
(fanSpinPeriodSec: 2.2s/turn at <=1000 RPM, 0.35s at >=13000).
- the "N fans · N OK · tile size ∝ …" caption line is gone.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VHG21rgTUiR1G3qFHTVmN
Repurpose the previously-unwired RunFanStressTest into RunFanCheck, a
Load-tier SAT test that drives stressapptest (CPU+memory) and, when a GPU
is present, a GPU burn to 100% simultaneously, then watches every fan
until none has climbed for ~60s. The observed peak RPM per fan is the
"ceiling"; it is persisted through the existing fan-observation store.
MSI G4201 / AMI MegaRAC exposes no host-side fan force (every OEM IPMI
command returns 0xc1; Redfish Thermal is GET-only), so load-driven ramp
is the closest safe equivalent. See
bible-local/decisions/2026-09-04-fan-ceiling-check.md.
- platform.ResolveFanMaxRPM: per-fan max with fallback (persisted peak ->
peer peak -> current RPM), resolved in platform, not the view.
- platform.ErrTestNotApplicable: no load source or no fan sensors ->
task lands as cancelled ("not applicable"), never failed, so an
engineer never sees a false red. executeTaskWithOptions maps the
sentinel; finalizeTaskForResult honours a pre-set TaskCancelled.
- Verdict FAIL only for a fan at 0 RPM / IPMI cr-nr under load.
- /topo: one small spinning square per fan, sized by RPM / resolved max,
clickable through to a new "fan" component-detail type; per-fan status
recorded to the component-status DB from the fan SAT summary.
- Wiring: /api/sat/fan/run route, "fan" task target, Load-page card,
stress-mode Run All.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019VHG21rgTUiR1G3qFHTVmN
Rework the /topo diagram from side-by-side stacked cards into one tall
vertical bar per CPU socket with everything attached to it branching off
sideways (socket 0 left/branches right, socket 1 right/branches left).
Disks are now parented under the storage controller they physically hang
off (SATA/AHCI, SAS HBA, RAID) — itself a NUMA-affine PCIe device under one
socket — instead of a synthetic catch-all node. The disk->controller link
is read from a new storage-controllers.txt techdump
(platform.StorageControllerMapScript, a /sys/block walk); disks with no
resolvable controller fall back to an "Other" bar. No board/root node.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SYjrG6bVmeG1Z2Wmc8kg3o
