Storage specialist Backblaze has revealed its SSD failure charge report. Currently, the corporate has a big quantity of SSDs, with no fewer than 3144 SSDs in its servers. The firm has now launched its stats for the primary quarter of 2023, with a Seagate failure charge of 830%!
A Seagate SSD reaches 830% failure charge at Backblaze… Not related!
Clearly, if the 830% failure charge of a sure Seagate mannequin is frightening, it’s merely for statistical causes. After all, in keeping with the corporate’s desk, the SSDSCKKB240GZR mannequin alone failed after 44 days of operation. The result’s a disproportionately excessive share in contrast with different fashions from the model. By comparability, many ZA sequence fashions have a 0% failure charge, even after many hours of operation.
In the tip, this 830% result’s laborious to take critically, and may merely be disregarded. In the second-quarter outcomes, we study {that a} second SSD of the identical reference had an annual failure charge of 0%, just because it didn’t fail. Backblaze additionally explains it very properly on its weblog:
” we simply don’t have sufficient information to get respectable outcomes. For any given drive mannequin, we wish to see a minimum of 100 drives and 10,000 drive days in a given quarter at least earlier than we start to think about the calculated AFR to be “affordable. “” “
This actually begs the query of why the corporate selected to incorporate the statistics for this SSD in its report. It knew from the outset that it had neither the mandatory variety of SSDs nor an attention-grabbing variety of days to attract any usable statistics from them.
Otherwise, on a broader degree, the corporate recorded a major rise within the failure charge of its SSDs. This rose from 0.96% within the first quarter of 2023 to 1.05% within the second quarter, the place the info appears extra constant, totalling over 260,000 days. What’s extra, over a a lot wider five-year interval (October 2018 to June 2023), the annual failure charge is 0.90% on 2,433,310d of cumulative exams.
