Hitachi HDS722020ALA330
Capacity: 2 TB
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Lifetime
- Active: 2013–2018
- Drive count: 4,774
- Drive days: 5,306,511
- Failures: 235
- Average age: 39.09 months
- Annualized failure rate: 1.62%
History by Period
| Period | Drive Count | Drive Days | Failures | AFR |
|---|---|---|---|---|
| Q1 2018 | 109 | 2,425 | 5 | 75.26% |
| Q4 2017 | 65 | 1,132 | 0 | 0.00% |
| Q3 2017 | 3 | 276 | 0 | 0.00% |
| Q2 2017 | 63 | 438 | 0 | 0.00% |
| Q1 2017 | 123 | 3,142 | 0 | 0.00% |
| Q4 2016 | 230 | 5,119 | 0 | 0.00% |
| Q3 2016 | 3,723 | 159,483 | 3 | 0.69% |
| Q2 2016 | 4,289 | 362,642 | 20 | 2.01% |
| Q1 2016 | 4,503 | 403,606 | 20 | 1.81% |
| 2015 | 4,683 | 1,672,359 | 109 | 2.38% |
| 2014 | 4,737 | 1,702,723 | 50 | 1.07% |
| 2013 | 4,753 | 993,166 | 28 | 1.03% |