Backblaze releases their HDD failure rates

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The AFR, or annualized failure rate, for the first quarter this year was 1.54%, which increased by .33% from the previous quarter. Andy Klein, Backblaze's author of the report, notes that the AFR quarterly numbers "can be volatile" but can also be helpful to see if a trend appears in the future.

For instance, HGST (model HUH721212ALN604), Seagate (ST12000NM0007), and Western Digital (WDC, model WUH721414ALE6L4) all had a substantial AFR increase, with the first company seeing 246%, the second 138%, and WDC seeing 242% AFR quarterly increases. All three drives are 12 TB in size or above.
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The "2-3 year average life expectancy" number is a bit misleading as it's from failed devices. From their AFR number it's quite obvious that the majority of devices are still alive and probably already being used for more than 3 years.
Of course, even so it's still a very good idea to make sure to backup everything important.
 
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