Huge Capacity HDDs Shine In Latest Storage Reliability Report But There's A Caveat

Hot Hardware reports: When it comes to mechanical hard disk drive (HDDs), you'd be very hard pressed to find any data on failure rates reported by any of the major players, such as Western Digital, Seagate, and the rest. Fortunately for us stat nerds and anyone else who is curious, the folks at cloud backup firm Backblaze frequently issue reliability reports that give insight into the how often various models and capacities give up the ghost. At a glance, Backblaze's latest report highlights that bigger capacity drives -- 12TB, 14TB, and 16TB -- fail less often than smaller capacity models. A closer examination, however, reveals that it's not so cut and dry.

In a nutshell, Backblaze noted an overall rise in the annual failure rates (AFRs) for 2022. The cumulative AFR of all drives deployed rose to 1.37 percent, up from 1.01 percent in 2021. By the end of 2022, Backblaze had 236,608 HDDs in service, including 231,309 data drives and 4,299 boot drives. Its latest report focuses on the data drives. Bigger drives are more reliable than smaller drives, case close, right? Not so fast. There's an important caveat to this data -- while the smaller drives failed more often last year, they are also older, as can be seen in the graph above. 'The aging of our fleet of hard drives does appear to be the most logical reason for the increased AFR in 2022. We could dig in further, but that is probably moot at this point. You see, we spent 2022 building out our presence in two new data centers, the Nautilus facility in Stockton, California and the CoreSite facility in Reston, Virginia. In 2023, our focus is expected to be on replacing our older drives with 16TB and larger hard drives,' Backblaze says.

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