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Tuesday, January 21, 2014
Hitachi HDDs Have The Lowest Failure Rate: report
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Online backup firm Backblaze claims that the Hitachi Deskstar hard disk drive models sport the lowest annually failure rates.
The uses more than 27,000 consumer-grade hard drives in its data centers. After crunching the lifetime and failure stats of the drives in its inventory, Backblaze published the results that showed differences between
the best and worst consumer-grade drives, in terms of longevity and
durability.
According to the report, best drives Backblaze currently use are the
Hitachi Deskstar models (Deskstar 5K3000 and 7K3000, 3TB), which sport
failure rates as low as 0.8 percent and as high as 2.9 percent annually.
The worst were the Seagate Barracuda 7200 models, 1.5TB drives that died
at a rate of 25.4 percent annually.
The Seagate Desktop HDD.15, a 4TB drive racked up a 3.8 percent annual
failure rate. But Seagate's drives failed that much more quickly than the
competition, and the smaller-capacity drives failed more often.
Western Digital's drives did better, with the high end of its annual
failure rates around 3.6 percent.
According to the stats Backblaze collected over the course of three
years, the Hitachi drives were the most consistently reliable. Western
Digital drives tended to have most of their failures up front, within the
first couple of months of use. Seagate drives, died at a consistently
higher rate, with a burst of deaths near the 20-month mark.
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