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Release v1.0.2 (2026-06-26): sync to live catalog (149 drives)

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

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README.md
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# NAS drive dataset # NAS drive dataset
An original dataset of NAS and enterprise hard drives: full specs, **CMR vs SMR classification**, and **annualized failure rates** derived from Backblaze Drive Stats. 153 drives. An original dataset of NAS and enterprise hard drives: full specs, **CMR vs SMR classification**, and **annualized failure rates** derived from Backblaze Drive Stats. 149 drives.
The core of this dataset - the CMR/SMR classification and drive specs - is our own original research, compiled from manufacturer datasheets and model-number analysis. Manufacturers do not publish a unified CMR/SMR list; we built one. The failure-rate column enriches it with rates derived from Backblaze's raw Drive Stats data (our computation, their underlying counts). The core of this dataset - the CMR/SMR classification and drive specs - is our own original research, compiled from manufacturer datasheets and model-number analysis. Manufacturers do not publish a unified CMR/SMR list; we built one. The failure-rate column enriches it with rates derived from Backblaze's raw Drive Stats data (our computation, their underlying counts).
@ -12,11 +12,11 @@ Maintained at [nasdisks.com](https://www.nasdisks.com/), where the same data pow
| File | Rows | What it is | | File | Rows | What it is |
|------|------|------------| |------|------|------------|
| [`data/drives-2026-06-21.csv`](data/drives-2026-06-21.csv) | 153 | The headline file: one flat row per drive, all specs and failure rate combined. | | [`data/drives-2026-06-26.csv`](data/drives-2026-06-26.csv) | 149 | The headline file: one flat row per drive, all specs and failure rate combined. |
| [`data/drives-2026-06-21.json`](data/drives-2026-06-21.json) | 153 | The same rows as JSON (mirror of the live API). | | [`data/drives-2026-06-26.json`](data/drives-2026-06-26.json) | 149 | The same rows as JSON (mirror of the live API). |
| [`data/cmr-reference-2026-06-21.csv`](data/cmr-reference-2026-06-21.csv) | 149 | Source of truth for specs and CMR/SMR classification (including idle/seek noise and helium fill), with a per-row `confidence` flag. Our original research. | | [`data/cmr-reference-2026-06-26.csv`](data/cmr-reference-2026-06-26.csv) | 149 | Source of truth for specs and CMR/SMR classification (including idle/seek noise and helium fill), with a per-row `confidence` flag. Our original research. |
| [`data/backblaze-afr-2026-06-21.csv`](data/backblaze-afr-2026-06-21.csv) | 36 | Full-year 2025 annualized failure rates, computed from Backblaze raw Drive Stats. | | [`data/backblaze-afr-2026-06-26.csv`](data/backblaze-afr-2026-06-26.csv) | 36 | Full-year 2025 annualized failure rates, computed from Backblaze raw Drive Stats. |
| [`data/series-reliability-2026-06-21.csv`](data/series-reliability-2026-06-21.csv) | - | Manufacturer series specs (warranty, rated workload, MTBF) used as context where Backblaze has no data. | | [`data/series-reliability-2026-06-26.csv`](data/series-reliability-2026-06-26.csv) | - | Manufacturer series specs (warranty, rated workload, MTBF) used as context where Backblaze has no data. |
## Quick start ## Quick start
@ -30,7 +30,7 @@ curl -s https://www.nasdisks.com/data/drives.json | jq '.drives[0]'
curl -s https://www.nasdisks.com/data/drives.csv curl -s https://www.nasdisks.com/data/drives.csv
``` ```
## Columns (`drives-2026-06-21.csv` / `drives-2026-06-21.json`) ## Columns (`drives-2026-06-26.csv` / `drives-2026-06-26.json`)
| Column | Meaning | | Column | Meaning |
|--------|---------| |--------|---------|
@ -54,10 +54,10 @@ curl -s https://www.nasdisks.com/data/drives.csv
## Methodology ## Methodology
- **CMR vs SMR** is our original classification, built from manufacturer datasheets and model-number decoding. Manufacturers ship SMR drives into NAS lines without labelling them as such; this dataset exists because there was no single authoritative per-model reference. The `confidence` column in `cmr-reference-2026-06-21.csv` flags certainty per row. - **CMR vs SMR** is our original classification, built from manufacturer datasheets and model-number decoding. Manufacturers ship SMR drives into NAS lines without labelling them as such; this dataset exists because there was no single authoritative per-model reference. The `confidence` column in `cmr-reference-2026-06-26.csv` flags certainty per row.
- **Noise and helium** are read from manufacturer datasheets (idle/seek A-weighted sound power; helium-seal designation). Our compilation; licensed CC BY 4.0 alongside the other specs. - **Noise and helium** are read from manufacturer datasheets (idle/seek A-weighted sound power; helium-seal designation). Our compilation; licensed CC BY 4.0 alongside the other specs.
- **Failure rates** are computed from Backblaze's raw 2025 quarterly Drive Stats: we aggregate drive-days and failure counts across quarters into a single full-year annualized rate and validate against Backblaze's published fleet figure (~1.36% for 2025). The computation and methodology are ours; the underlying counts are Backblaze's (see licence section). Models Backblaze doesn't track are left null rather than guessed. - **Failure rates** are computed from Backblaze's raw 2025 quarterly Drive Stats: we aggregate drive-days and failure counts across quarters into a single full-year annualized rate and validate against Backblaze's published fleet figure (~1.36% for 2025). The computation and methodology are ours; the underlying counts are Backblaze's (see licence section). Models Backblaze doesn't track are left null rather than guessed.
- **`series-reliability-2026-06-21.csv`** gives manufacturer-rated context (warranty, workload TB/year, MTBF) for lines Backblaze doesn't run. - **`series-reliability-2026-06-26.csv`** gives manufacturer-rated context (warranty, workload TB/year, MTBF) for lines Backblaze doesn't run.
## Licence & attribution ## Licence & attribution
@ -76,7 +76,7 @@ Our original work (every field *except* the failure-rate ones). Licensed under [
### 2. Failure-rate data - Backblaze's terms (NOT CC BY 4.0) ### 2. Failure-rate data - Backblaze's terms (NOT CC BY 4.0)
The fields `afr_pct`, `reliability_drive_count`, `reliability_drive_days`, `reliability_failures` (in `drives-2026-06-21.csv` / `drives-2026-06-21.json`) and all of `backblaze-afr-2026-06-21.csv` are derived from Backblaze Drive Stats. The computation is ours; the underlying counts are Backblaze's. The fields `afr_pct`, `reliability_drive_count`, `reliability_drive_days`, `reliability_failures` (in `drives-2026-06-26.csv` / `drives-2026-06-26.json`) and all of `backblaze-afr-2026-06-26.csv` are derived from Backblaze Drive Stats. The computation is ours; the underlying counts are Backblaze's.
- **You can:** use it for free, and build (and even sell) derivative works from it. - **You can:** use it for free, and build (and even sell) derivative works from it.
- **You must:** credit Backblaze as the source. - **You must:** credit Backblaze as the source.
@ -89,5 +89,6 @@ This repo is a point-in-time snapshot; the date in each filename is its export d
## Changelog ## Changelog
- **2026-06-21** - Added per-drive noise (idle / seek A-weighted sound power, dB) and helium-fill fields. Corrected WD40EZAX / WD60EZAX to CMR (the newer EZAX revision is CMR; only the older EZAZ is SMR). - **2026-06-26 - v1.0.2** - Refreshed to the current live catalog (149 drives); minor catalog reconciliation since v1.0.1.
- **2026-06-16** - Initial public dataset: full specs, CMR/SMR classification, and full-year 2025 Backblaze annualized failure rates. - **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.

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@ -31,20 +31,19 @@ WD181KFGX,WD,"Red Pro",18,7200,512,SATA,3.5,cmr,20,36,1,NAS-Pro,1,,,,,,
WD181KRYZ,WD,Gold,18,7200,512,SATA,3.5,cmr,20,32,1,Enterprise,1,,,,,, WD181KRYZ,WD,Gold,18,7200,512,SATA,3.5,cmr,20,32,1,Enterprise,1,,,,,,
WD181PURP,WD,"Purple Pro",18,7200,512,SATA,3.5,cmr,20,32,1,Surveillance,1,,,,,, WD181PURP,WD,"Purple Pro",18,7200,512,SATA,3.5,cmr,20,32,1,Surveillance,1,,,,,,
WUH721818ALE6L4,WD,"Ultrastar DC HC550",18,7200,512,SATA,3.5,cmr,20,36,1,Enterprise,1,,,,,, WUH721818ALE6L4,WD,"Ultrastar DC HC550",18,7200,512,SATA,3.5,cmr,20,36,1,Enterprise,1,,,,,,
ST16000NM000J,Seagate,"Exos X18",16,7200,256,SATA,3.5,cmr,,,1,Enterprise,1,ST16000NM002J,0.22,465,168586,1,"Backblaze 2025 (merged ST16000NM002J)" ST16000NM000J,Seagate,"Exos X18",16,7200,256,SATA,3.5,cmr,,,1,Enterprise,1,ST16000NM002J,0.55,576,200084,3,"Backblaze 2025 (merged ST16000NM000J + ST16000NM002J)"
ST16000NM001G,Seagate,"Exos X16",16,7200,256,SATA,3.5,cmr,29,33,1,Enterprise,1,,0.54,34305,12381689,182,"Backblaze 2025" ST16000NM001G,Seagate,"Exos X16",16,7200,256,SATA,3.5,cmr,29,33,1,Enterprise,1,,0.54,34305,12381689,182,"Backblaze 2025"
ST16000NM002G,Seagate,"Exos X16",16,7200,256,SAS,3.5,cmr,29,33,1,Enterprise,1,,,,,, ST16000NM002G,Seagate,"Exos X16",16,7200,256,SAS,3.5,cmr,29,33,1,Enterprise,1,,,,,,
ST16000NT001,Seagate,"IronWolf Pro",16,7200,256,SATA,3.5,cmr,28,32,1,NAS-Pro,1,,,,,, ST16000NT001,Seagate,"IronWolf Pro",16,7200,256,SATA,3.5,cmr,28,32,1,NAS-Pro,1,,,,,,
ST16000VE002,Seagate,"SkyHawk AI",16,7200,256,SATA,3.5,cmr,,,1,Surveillance,1,,,,,, ST16000VE002,Seagate,"SkyHawk AI",16,7200,256,SATA,3.5,cmr,,,1,Surveillance,1,,,,,,
HDWG51E,Toshiba,N300,16,7200,512,SATA,3.5,cmr,,,,NAS,1,,,,,, HDWG51G,Toshiba,N300,16,7200,512,SATA,3.5,cmr,20,,1,NAS,1,HDWG51E,,,,,
HDWG51G,Toshiba,N300,16,7200,512,SATA,3.5,cmr,20,,1,NAS,1,,,,,,
MG08ACA16Tx,Toshiba,MG08,16,7200,512,SATA,3.5,cmr,20,,1,Enterprise,1,MG08ACA16TA;MG08ACA16TE;MG08ACA16TEY,1.48,50513,18655931,759,"Backblaze 2025 (merged MG08ACA16TA + MG08ACA16TE + MG08ACA16TEY)" MG08ACA16Tx,Toshiba,MG08,16,7200,512,SATA,3.5,cmr,20,,1,Enterprise,1,MG08ACA16TA;MG08ACA16TE;MG08ACA16TEY,1.48,50513,18655931,759,"Backblaze 2025 (merged MG08ACA16TA + MG08ACA16TE + MG08ACA16TEY)"
MG09ACA16TE,Toshiba,MG09,16,7200,512,SATA,3.5,cmr,20,,1,Enterprise,1,,1.73,348,63327,3,"Backblaze 2025" MG09ACA16TE,Toshiba,MG09,16,7200,512,SATA,3.5,cmr,20,,1,Enterprise,1,,1.73,348,63327,3,"Backblaze 2025"
WD161KFGX,WD,"Red Pro",16,7200,512,SATA,3.5,cmr,20,36,1,NAS-Pro,1,,,,,, WD161KFGX,WD,"Red Pro",16,7200,512,SATA,3.5,cmr,20,36,1,NAS-Pro,1,,,,,,
WD161KRYZ,WD,Gold,16,7200,512,SATA,3.5,cmr,20,32,1,Enterprise,1,,,,,, WD161KRYZ,WD,Gold,16,7200,512,SATA,3.5,cmr,20,32,1,Enterprise,1,,,,,,
WUH721816ALE6Lx,WD,"Ultrastar DC HC550",16,7200,512,SATA,3.5,cmr,20,36,1,Enterprise,1,WUH721816ALE6L0;WUH721816ALE6L4,0.8,29629,10764307,235,"Backblaze 2025 (merged WUH721816ALE6L0 + WUH721816ALE6L4)" WUH721816ALE6Lx,WD,"Ultrastar DC HC550",16,7200,512,SATA,3.5,cmr,20,36,1,Enterprise,1,WUH721816ALE6L0;WUH721816ALE6L4,0.8,29629,10764307,235,"Backblaze 2025 (merged WUH721816ALE6L0 + WUH721816ALE6L4)"
ST14000NM000J,Seagate,"Exos X18",14,7200,256,SATA,3.5,cmr,,,1,Enterprise,0,,2.18,407,117113,7,"Backblaze 2025" ST14000NM000J,Seagate,"Exos X18",14,7200,256,SATA,3.5,cmr,,,1,Enterprise,0,,2.18,407,117113,7,"Backblaze 2025"
ST14000NM0018,Seagate,"Exos X14",14,7200,256,SATA,3.5,cmr,,,1,Enterprise,0,ST14000NM0138,5.31,1251,467111,68,"Backblaze 2025 (merged ST14000NM0138)" ST14000NM0018,Seagate,"Exos X14",14,7200,256,SATA,3.5,cmr,,,1,Enterprise,0,ST14000NM0138,5.29,1312,490182,71,"Backblaze 2025 (merged ST14000NM0018 + ST14000NM0138)"
ST14000NM001G,Seagate,"Exos X16",14,7200,256,SATA,3.5,cmr,29,33,1,Enterprise,1,,1.35,10464,3849616,142,"Backblaze 2025" ST14000NM001G,Seagate,"Exos X16",14,7200,256,SATA,3.5,cmr,29,33,1,Enterprise,1,,1.35,10464,3849616,142,"Backblaze 2025"
ST14000NT001,Seagate,"IronWolf Pro",14,7200,256,SATA,3.5,cmr,28,32,1,NAS-Pro,1,,,,,, ST14000NT001,Seagate,"IronWolf Pro",14,7200,256,SATA,3.5,cmr,28,32,1,NAS-Pro,1,,,,,,
HDWG31G,Toshiba,N300,14,7200,256,SATA,3.5,cmr,20,,1,NAS,1,,,,,, HDWG31G,Toshiba,N300,14,7200,256,SATA,3.5,cmr,20,,1,NAS,1,,,,,,
@ -67,7 +66,7 @@ ST12000VN0008,Seagate,IronWolf,12,7200,256,SATA,3.5,cmr,,,1,NAS,1,,,,,,
HDWG21C,Toshiba,N300,12,7200,256,SATA,3.5,cmr,20,,1,NAS,1,,,,,, HDWG21C,Toshiba,N300,12,7200,256,SATA,3.5,cmr,20,,1,NAS,1,,,,,,
HDWR21C,Toshiba,X300,12,7200,256,SATA,3.5,cmr,20,,1,Desktop,1,,,,,, HDWR21C,Toshiba,X300,12,7200,256,SATA,3.5,cmr,20,,1,Desktop,1,,,,,,
MG07ACA12TE,Toshiba,MG07,12,7200,256,SATA,3.5,cmr,20,,1,Enterprise,1,,,,,, MG07ACA12TE,Toshiba,MG07,12,7200,256,SATA,3.5,cmr,20,,1,Enterprise,1,,,,,,
HUH721212ALE604,WD,"Ultrastar DC HC520",12,7200,256,SATA,3.5,cmr,20,36,1,Enterprise,1,HUH721212ALE600;HUH721212ALN604,3.27,12298,4579499,410,"Backblaze 2025 (merged HUH721212ALE600 + HUH721212ALN604)" HUH721212ALE604,WD,"Ultrastar DC HC520",12,7200,256,SATA,3.5,cmr,20,36,1,Enterprise,1,HUH721212ALE600;HUH721212ALN604,2.97,25393,9433216,768,"Backblaze 2025 (merged HUH721212ALE600 + HUH721212ALE604 + HUH721212ALN604)"
WD120EFBX,WD,"Red Plus",12,7200,256,SATA,3.5,cmr,24,28,1,NAS,1,,,,,, WD120EFBX,WD,"Red Plus",12,7200,256,SATA,3.5,cmr,24,28,1,NAS,1,,,,,,
WD121KFBX,WD,"Red Pro",12,7200,256,SATA,3.5,cmr,20,36,1,NAS-Pro,1,,,,,, WD121KFBX,WD,"Red Pro",12,7200,256,SATA,3.5,cmr,20,36,1,NAS-Pro,1,,,,,,
WD121KRYZ,WD,Gold,12,7200,256,SATA,3.5,cmr,20,32,1,Enterprise,1,,,,,, WD121KRYZ,WD,Gold,12,7200,256,SATA,3.5,cmr,20,32,1,Enterprise,1,,,,,,
@ -96,7 +95,7 @@ ST8000VX010,Seagate,SkyHawk,8,7200,256,SATA,3.5,cmr,26,27,0,Surveillance,1,,,,,,
HDWG480,Toshiba,N300,8,7200,256,SATA,3.5,cmr,20,,0,NAS,1,,,,,, HDWG480,Toshiba,N300,8,7200,256,SATA,3.5,cmr,20,,0,NAS,1,,,,,,
HDWR480,Toshiba,X300,8,7200,256,SATA,3.5,cmr,20,,0,Desktop,1,,,,,, HDWR480,Toshiba,X300,8,7200,256,SATA,3.5,cmr,20,,0,Desktop,1,,,,,,
MG06ACA800E,Toshiba,MG06,8,7200,256,SATA,3.5,cmr,,,0,Enterprise,1,,,,,, MG06ACA800E,Toshiba,MG06,8,7200,256,SATA,3.5,cmr,,,0,Enterprise,1,,,,,,
HUH728080ALE604,WD,"Ultrastar He8",8,7200,128,SATA,3.5,cmr,,,1,Enterprise,0,HUH728080ALE600,3.56,1021,389340,38,"Backblaze 2025 (merged HUH728080ALE600)" HUH728080ALE604,WD,"Ultrastar He8",8,7200,128,SATA,3.5,cmr,,,1,Enterprise,0,HUH728080ALE600,3.49,1097,418115,40,"Backblaze 2025 (merged HUH728080ALE600 + HUH728080ALE604)"
HUS728T8TALE6L4,WD,"Ultrastar DC HC320",8,7200,256,SATA,3.5,cmr,,,0,Enterprise,1,,,,,, HUS728T8TALE6L4,WD,"Ultrastar DC HC320",8,7200,256,SATA,3.5,cmr,,,0,Enterprise,1,,,,,,
WD8001PURP,WD,"Purple Pro",8,7200,256,SATA,3.5,cmr,20,32,0,Surveillance,1,,,,,, WD8001PURP,WD,"Purple Pro",8,7200,256,SATA,3.5,cmr,20,32,0,Surveillance,1,,,,,,
WD8004FRYZ,WD,Gold,8,7200,256,SATA,3.5,cmr,20,32,0,Enterprise,1,,,,,, WD8004FRYZ,WD,Gold,8,7200,256,SATA,3.5,cmr,20,32,0,Enterprise,1,,,,,,
@ -141,14 +140,11 @@ ST2000DM008,Seagate,BarraCuda,2,7200,256,SATA,3.5,smr,22,24,0,Desktop,1,,,,,,
ST2000NT001,Seagate,"IronWolf Pro",2,7200,256,SATA,3.5,cmr,28,32,0,NAS-Pro,1,,,,,, ST2000NT001,Seagate,"IronWolf Pro",2,7200,256,SATA,3.5,cmr,28,32,0,NAS-Pro,1,,,,,,
ST2000VN003,Seagate,IronWolf,2,5400,256,SATA,3.5,cmr,,,0,NAS,1,,,,,, ST2000VN003,Seagate,IronWolf,2,5400,256,SATA,3.5,cmr,,,0,NAS,1,,,,,,
ST2000VX017,Seagate,SkyHawk,2,5400,256,SATA,3.5,cmr,26,27,0,Surveillance,1,,,,,, ST2000VX017,Seagate,SkyHawk,2,5400,256,SATA,3.5,cmr,26,27,0,Surveillance,1,,,,,,
WD2002FFSX,WD,"Red Pro",2,7200,64,SATA,3.5,cmr,20,36,0,NAS-Pro,1,,,,,, WD2002FFSX,WD,"Red Pro",2,7200,64,SATA,3.5,cmr,20,36,0,NAS-Pro,1,WD2005FFBX,,,,,
WD2005FBYZ,WD,Gold,2,7200,128,SATA,3.5,cmr,20,32,0,Enterprise,1,,,,,, WD2005FBYZ,WD,Gold,2,7200,128,SATA,3.5,cmr,20,32,0,Enterprise,1,,,,,,
WD2005FFBX,WD,"Red Pro",2,7200,256,SATA,3.5,cmr,,,,NAS-Pro,1,,,,,,
WD20EFAX,WD,Red,2,5400,256,SATA,3.5,smr,23,29,0,NAS,1,,,,,, WD20EFAX,WD,Red,2,5400,256,SATA,3.5,smr,23,29,0,NAS,1,,,,,,
WD20EFPX,WD,"Red Plus",2,5400,128,SATA,3.5,cmr,24,28,0,NAS,1,,,,,, WD20EFPX,WD,"Red Plus",2,5400,128,SATA,3.5,cmr,24,28,0,NAS,1,,,,,,
WD20EZAZ,WD,Blue,2,5400,256,SATA,3.5,smr,21,26,0,Desktop,1,,,,,, WD20EZAZ,WD,Blue,2,5400,256,SATA,3.5,smr,21,26,0,Desktop,1,,,,,,
ST1000VN002,Seagate,IronWolf,1,5900,64,SATA,3.5,cmr,,,0,NAS,1,,,,,, ST1000VN002,Seagate,IronWolf,1,5900,64,SATA,3.5,cmr,,,0,NAS,1,,,,,,
ST1000VX013,Seagate,SkyHawk,1,5900,64,SATA,3.5,cmr,26,27,0,Surveillance,1,,,,,, ST1000VX013,Seagate,SkyHawk,1,5900,64,SATA,3.5,cmr,26,27,0,Surveillance,1,,,,,,
HDWL110,Toshiba,L200,1,5400,128,SATA,2.5,smr,,,,Desktop,1,,,,,,
MQ04ABF100,Toshiba,MQ04,1,5400,128,SATA,2.5,smr,,,,Desktop,1,,,,,,
WD1005FBYZ,WD,Gold,1,7200,128,SATA,3.5,cmr,20,32,0,Enterprise,1,,,,,, WD1005FBYZ,WD,Gold,1,7200,128,SATA,3.5,cmr,20,32,0,Enterprise,1,,,,,,
1 model brand line capacity_tb rpm cache_mb interface form_factor recording_tech acoustic_idle_db acoustic_seek_db is_helium drive_class in_production also_sold_as afr_pct reliability_drive_count reliability_drive_days reliability_failures reliability_source
31 WD181KRYZ WD Gold 18 7200 512 SATA 3.5 cmr 20 32 1 Enterprise 1
32 WD181PURP WD Purple Pro 18 7200 512 SATA 3.5 cmr 20 32 1 Surveillance 1
33 WUH721818ALE6L4 WD Ultrastar DC HC550 18 7200 512 SATA 3.5 cmr 20 36 1 Enterprise 1
34 ST16000NM000J Seagate Exos X18 16 7200 256 SATA 3.5 cmr 1 Enterprise 1 ST16000NM002J 0.22 0.55 465 576 168586 200084 1 3 Backblaze 2025 (merged ST16000NM002J) Backblaze 2025 (merged ST16000NM000J + ST16000NM002J)
35 ST16000NM001G Seagate Exos X16 16 7200 256 SATA 3.5 cmr 29 33 1 Enterprise 1 0.54 34305 12381689 182 Backblaze 2025
36 ST16000NM002G Seagate Exos X16 16 7200 256 SAS 3.5 cmr 29 33 1 Enterprise 1
37 ST16000NT001 Seagate IronWolf Pro 16 7200 256 SATA 3.5 cmr 28 32 1 NAS-Pro 1
38 ST16000VE002 Seagate SkyHawk AI 16 7200 256 SATA 3.5 cmr 1 Surveillance 1
39 HDWG51E HDWG51G Toshiba N300 16 7200 512 SATA 3.5 cmr 20 1 NAS 1 HDWG51E
HDWG51G Toshiba N300 16 7200 512 SATA 3.5 cmr 20 1 NAS 1
40 MG08ACA16Tx Toshiba MG08 16 7200 512 SATA 3.5 cmr 20 1 Enterprise 1 MG08ACA16TA;MG08ACA16TE;MG08ACA16TEY 1.48 50513 18655931 759 Backblaze 2025 (merged MG08ACA16TA + MG08ACA16TE + MG08ACA16TEY)
41 MG09ACA16TE Toshiba MG09 16 7200 512 SATA 3.5 cmr 20 1 Enterprise 1 1.73 348 63327 3 Backblaze 2025
42 WD161KFGX WD Red Pro 16 7200 512 SATA 3.5 cmr 20 36 1 NAS-Pro 1
43 WD161KRYZ WD Gold 16 7200 512 SATA 3.5 cmr 20 32 1 Enterprise 1
44 WUH721816ALE6Lx WD Ultrastar DC HC550 16 7200 512 SATA 3.5 cmr 20 36 1 Enterprise 1 WUH721816ALE6L0;WUH721816ALE6L4 0.8 29629 10764307 235 Backblaze 2025 (merged WUH721816ALE6L0 + WUH721816ALE6L4)
45 ST14000NM000J Seagate Exos X18 14 7200 256 SATA 3.5 cmr 1 Enterprise 0 2.18 407 117113 7 Backblaze 2025
46 ST14000NM0018 Seagate Exos X14 14 7200 256 SATA 3.5 cmr 1 Enterprise 0 ST14000NM0138 5.31 5.29 1251 1312 467111 490182 68 71 Backblaze 2025 (merged ST14000NM0138) Backblaze 2025 (merged ST14000NM0018 + ST14000NM0138)
47 ST14000NM001G Seagate Exos X16 14 7200 256 SATA 3.5 cmr 29 33 1 Enterprise 1 1.35 10464 3849616 142 Backblaze 2025
48 ST14000NT001 Seagate IronWolf Pro 14 7200 256 SATA 3.5 cmr 28 32 1 NAS-Pro 1
49 HDWG31G Toshiba N300 14 7200 256 SATA 3.5 cmr 20 1 NAS 1
66 HDWG21C Toshiba N300 12 7200 256 SATA 3.5 cmr 20 1 NAS 1
67 HDWR21C Toshiba X300 12 7200 256 SATA 3.5 cmr 20 1 Desktop 1
68 MG07ACA12TE Toshiba MG07 12 7200 256 SATA 3.5 cmr 20 1 Enterprise 1
69 HUH721212ALE604 WD Ultrastar DC HC520 12 7200 256 SATA 3.5 cmr 20 36 1 Enterprise 1 HUH721212ALE600;HUH721212ALN604 3.27 2.97 12298 25393 4579499 9433216 410 768 Backblaze 2025 (merged HUH721212ALE600 + HUH721212ALN604) Backblaze 2025 (merged HUH721212ALE600 + HUH721212ALE604 + HUH721212ALN604)
70 WD120EFBX WD Red Plus 12 7200 256 SATA 3.5 cmr 24 28 1 NAS 1
71 WD121KFBX WD Red Pro 12 7200 256 SATA 3.5 cmr 20 36 1 NAS-Pro 1
72 WD121KRYZ WD Gold 12 7200 256 SATA 3.5 cmr 20 32 1 Enterprise 1
95 HDWG480 Toshiba N300 8 7200 256 SATA 3.5 cmr 20 0 NAS 1
96 HDWR480 Toshiba X300 8 7200 256 SATA 3.5 cmr 20 0 Desktop 1
97 MG06ACA800E Toshiba MG06 8 7200 256 SATA 3.5 cmr 0 Enterprise 1
98 HUH728080ALE604 WD Ultrastar He8 8 7200 128 SATA 3.5 cmr 1 Enterprise 0 HUH728080ALE600 3.56 3.49 1021 1097 389340 418115 38 40 Backblaze 2025 (merged HUH728080ALE600) Backblaze 2025 (merged HUH728080ALE600 + HUH728080ALE604)
99 HUS728T8TALE6L4 WD Ultrastar DC HC320 8 7200 256 SATA 3.5 cmr 0 Enterprise 1
100 WD8001PURP WD Purple Pro 8 7200 256 SATA 3.5 cmr 20 32 0 Surveillance 1
101 WD8004FRYZ WD Gold 8 7200 256 SATA 3.5 cmr 20 32 0 Enterprise 1
140 ST2000NT001 Seagate IronWolf Pro 2 7200 256 SATA 3.5 cmr 28 32 0 NAS-Pro 1
141 ST2000VN003 Seagate IronWolf 2 5400 256 SATA 3.5 cmr 0 NAS 1
142 ST2000VX017 Seagate SkyHawk 2 5400 256 SATA 3.5 cmr 26 27 0 Surveillance 1
143 WD2002FFSX WD Red Pro 2 7200 64 SATA 3.5 cmr 20 36 0 NAS-Pro 1 WD2005FFBX
144 WD2005FBYZ WD Gold 2 7200 128 SATA 3.5 cmr 20 32 0 Enterprise 1
WD2005FFBX WD Red Pro 2 7200 256 SATA 3.5 cmr NAS-Pro 1
145 WD20EFAX WD Red 2 5400 256 SATA 3.5 smr 23 29 0 NAS 1
146 WD20EFPX WD Red Plus 2 5400 128 SATA 3.5 cmr 24 28 0 NAS 1
147 WD20EZAZ WD Blue 2 5400 256 SATA 3.5 smr 21 26 0 Desktop 1
148 ST1000VN002 Seagate IronWolf 1 5900 64 SATA 3.5 cmr 0 NAS 1
149 ST1000VX013 Seagate SkyHawk 1 5900 64 SATA 3.5 cmr 26 27 0 Surveillance 1
HDWL110 Toshiba L200 1 5400 128 SATA 2.5 smr Desktop 1
MQ04ABF100 Toshiba MQ04 1 5400 128 SATA 2.5 smr Desktop 1
150 WD1005FBYZ WD Gold 1 7200 128 SATA 3.5 cmr 20 32 0 Enterprise 1

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data/drives-2026-06-26.json Normal file
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data/series-reliability-2026-06-21.csv → data/series-reliability-2026-06-26.csv
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getting-started.ipynb
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@ -225,7 +225,7 @@
"source": [ "source": [
"import pandas as pd\n", "import pandas as pd\n",
"\n", "\n",
"df = pd.read_csv('/kaggle/input/datasets/nettrust/nas-drives-cmrsmr-failure-rates-and-specs-2026/drives-2026-06-21.csv')\n", "df = pd.read_csv('/kaggle/input/datasets/nettrust/nas-drives-cmrsmr-failure-rates-and-specs-2026/drives-2026-06-26.csv')\n",
"print(f\"{len(df)} drives | {df['brand'].nunique()} brands | {df['line'].nunique()} product lines\")\n", "print(f\"{len(df)} drives | {df['brand'].nunique()} brands | {df['line'].nunique()} product lines\")\n",
"df.head()" "df.head()"
] ]