The only HDD to break down even more often was the Seagate 4TB ST400DM000 (5,249 failures), but it also lasted a lot longer on average - 3 years and 3 months. The massive Seagate 12TB ST12000NM0007 turned out to be the fastest to break, reaching an average age of 1 year and six months and a total of 2,023 failures. In addition to exposing the short average life span of an HDD, the study also finds that Seagate drives are the most susceptible to failure, while WDC models saw the least casualties. The study excluded all failed boot drives, drives with data errors or inconsistencies, and drives with no SMART raw attribute data. In total, 72 different models were included.īackblaze recorded the power-on hours of each drive, along with their failure dates, serial numbers, capacity, and SMART (Self-Monitoring, Analysis, and Reporting Technology) raw data. This includes models from Seagate, Toshiba, or Western Digital (WDC). The company was able to run this study on its own failed drives that were previously used in its data centers.
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