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Backblaze releases failure rates for hard drives

Backblaze recently announced a review of the lifetime failure rate of current working hard drives in the first quarter of 2020. The result is very certain about who gets to the bottom of the list. Since March 31, 2020, 132,339 hard drives have been spinning in

Backblaze's cloud storage system. However, they only tested 129,764 hard drives in total. Several were excluded from testing because they were used as test units or there were no units with at least 60 given models. The annualized failure rate (AFR) for the first quarter of

was 1.07%, which is the lowest quarter since Backblaze began testing in 2013.

However, based on the results, Seagate has the highest failure rate in comparison with other manufacturers. So if you, like many of us, have a Seagate hard drive installed on your PC, that would be bad news.

In these tests, four drive models from three manufacturers had zero failure rates. The Toshiba 4TB or Seagate 16TB drives did not fail. However, it is important to note that these driving days in the quarter were less than 10,000.

Even if the number changes slightly, the AFR will be very different. For example, if one of Seagate's hard drives fails, this will push the AFR this quarter to 7.25%.

When it comes to adding new units, the question is: How does Backblaze keep accurate data and averages?

Backblaze uses the following calculation to calculate the failure rate:

AFR = (Drive Failures / (Drive Days / 366) * 100

It will be interesting to see if the same manufacturer appears in next quarter's hard drive review, especially for Seagate Username. It's great to see those hard drives with the least amount of time prove to be reasonable later this year.

Is this data likely to affect the hard drive purchase decision? Would you think twice before buying Seagate? Let us know your thoughts in the comments below.

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