WD WD40EFRX
Capacity: 4 TB
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Lifetime
- Active: 2014–2019
- Drive count: 50
- Drive days: 76,828
- Failures: 4
- Average age: 50.69 months
- Annualized failure rate: 1.90%
History by Period
| Period | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|
| Q1 2019 | 2 | 94 | 0 | 0.00% |
| Q4 2018 | 46 | 1,062 | 0 | 0.00% |
| Q3 2018 | 46 | 4,232 | 0 | 0.00% |
| Q2 2018 | 46 | 4,173 | 0 | 0.00% |
| Q1 2018 | 45 | 4,050 | 0 | 0.00% |
| Q4 2017 | 46 | 4,113 | 1 | 8.87% |
| Q3 2017 | 46 | 4,232 | 0 | 0.00% |
| Q2 2017 | 46 | 4,186 | 0 | 0.00% |
| Q1 2017 | 46 | 3,956 | 0 | 0.00% |
| Q4 2016 | 46 | 4,232 | 0 | 0.00% |
| Q3 2016 | 46 | 4,232 | 0 | 0.00% |
| Q2 2016 | 47 | 4,186 | 1 | 8.72% |
| Q1 2016 | 46 | 4,186 | 0 | 0.00% |
| 2015 | 48 | 16,394 | 2 | 4.45% |
| 2014 | 45 | 13,500 | 0 | 0.00% |