adam
0f829e0380
Rearchitect so a single poller process is the sole owner of all SAS/SMART/ SES hardware I/O, serialized behind one gate and paced, writing results to Redis. The API/web and MQTT publisher become pure Redis readers — they no longer issue any subprocess and can restart freely without touching the bus. This addresses backplane/expander stress from concurrent + restart-triggered SMART/SES storms (the prior model re-ran a hardware sweep on every container start, and polled sg_ses 0x02+0x07 every 60s; 0x07 errored on the IOM6/ Xyratex expanders). - poller.py: paced sweep (inventory, SMART per-drive w/ gap, SES 0x02, ZFS, host/MegaRAID), startup jitter, single-instance Redis lock, LED-queue worker - services/hwgate.py: global serialization semaphore (POLL_CONCURRENCY=1) - services/store.py: Redis as the only producer<->consumer interface + LED queue - services/health.py: shared drive-health classifier (fixes overview double-count) - gate smartctl/sg_ses/zpool/ledctl; drop sg_ses 0x07 from the hot path - routers + temps read-only from the store; main.py drops the in-process poller - compose: 3 services (privileged poller + unprivileged app + redis) w/ pacing knobs
22 lines
778 B
Python
22 lines
778 B
Python
"""Shared drive-health classification.
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Single source of truth for turning a parsed SMART dict into a
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healthy/warning/error status, used by both the poller (host drives) and
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the API (enclosure drives) so the rule never drifts between them.
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"""
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def compute_health_status(smart: dict) -> str:
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"""Return "healthy", "warning", or "error" for a SMART dict."""
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healthy = smart.get("smart_healthy")
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realloc = smart.get("reallocated_sectors") or 0
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pending = smart.get("pending_sectors") or 0
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unc = smart.get("uncorrectable_errors") or 0
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supported = smart.get("smart_supported", True)
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if healthy is False:
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return "error"
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if realloc > 0 or pending > 0 or unc > 0 or (healthy is None and supported):
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return "warning"
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return "healthy"
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