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nas-drive-data/CHANGELOG.md
deeddy 175e29817c v1.0.4 - refresh Backblaze failure rates (Q2 2026) + catalog update 
Recomputed from Backblaze's raw Q2 2026 Drive Stats (the tidy report isn't out
yet): AFR now spans full-year 2025 + Q1 + Q2 2026, ~1.41% fleet (was ~1.34%
through Q1). Dated snapshot 2026-09-04.

Catalog: 273 drives (167 HDD + 106 SSD), 25 with a Backblaze failure rate.
- Added recent SSDs: Crucial P510 + Corsair MP700 Elite (budget PCIe 5.0),
  Synology SNV3410/SNV3510 (NAS-cache NVMe, SNV3510 has PLP).
- Sub-TB drive capacities are now reported correctly (400/500/800GB were 0 TB).
- NAS enclosures dropped from the export (not drives).
2026-09-04 13:11:20 +02:00

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Changelog

All notable changes to this dataset are recorded here. Each release corresponds to a dated snapshot in data/.

  • 2026-09-04 - v1.0.4 - Refreshed Backblaze failure rates to a rolling window through Q2 2026 (full-year 2025 plus the Q1 and Q2 2026 quarters, ~1.41% fleet), computed from Backblaze's raw Q2 2026 Drive Stats; 273 drives (167 HDD + 106 SSD), 25 with a failure rate. Added recent PCIe 5.0 and NAS-cache SSDs (Crucial P510, Corsair MP700 Elite, Synology SNV3410/SNV3510); sub-TB capacities now reported correctly (were 0); NAS enclosures no longer included.
  • 2026-07-16 - v1.0.3 - Refreshed Backblaze failure rates to a rolling window through Q1 2026 (full-year 2025 plus the Q1 2026 quarter, ~1.34% fleet); 208 drives, 25 with a failure rate.
  • 2026-06-26 - v1.0.2 - Refreshed to the current live catalog (149 drives); minor catalog reconciliation since v1.0.1.
  • 2026-06-21 - v1.0.1 - Added per-drive noise (idle/seek A-weighted sound power, dB) and helium fields. Corrected WD40EZAX / WD60EZAX to CMR (newer EZAX is CMR; only older EZAZ is SMR).
  • 2026-06-16 - v1.0.0 - Initial public dataset: full specs, CMR/SMR classification, full-year 2025 Backblaze annualized failure rates.