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Reddit backblaze5/20/2023 ![]() For these models, having zero failures is a great start and we’ll see how they perform over time. The other two models with zero failures, the Toshiba 16TB and the WDC 16TB, have an average age of 4.1 months and 0.4 months, respectively. Two of these models, the Seagate 6TB and the Toshiba 4TB, have an average age of nearly six years, and lifetime annualized failure rates of less than 1%-very impressive over their lifetime. Customer development units are mechanically complete, but the firmware is considered non-production and as such the drives are considered test drives.įour drive models recorded zero failures during Q1. This quarter we have correctly categorized that drive model as part our testing cohort and as such that model was not included in this report. This drive model was a customer development unit provided to us for testing purposes and as such should not have been included in the 2020 report tables, as we exclude test drives. Uncompressed, there is a little over 68GB of data in 2,900 plus CSV files.įor those of you who reviewed our 2020 annual report, you may notice that the 18TB Seagate drives (model: ST18000NM000J) are not included in this report. The data for all of the drives in our data centers, including the 173 drives not included in the list above, is available for download on the Hard Drive Test Data webpage. Notes and Observations on the Q1 2021 Stats This leaves us with 171,919 hard drives for the Q1 2021 quarterly report, as shown below. For our evaluation, we removed from consideration 337 drives which were used for either testing purposes or were drive models for which we did not have at least 60 drives. 2021 Q1 Hard Drive Failure RatesĪt the end of March 2021, Backblaze was monitoring 172,256 hard drives used to store data. Along the way, we’ll share our observations and insights of the data presented, and as always we look forward to your comments below. This report will review the quarterly and lifetime failure rates for our data drives, and we’ll compare the failure rates of our HDD and SSD boot drives. ![]() The boot drives consisted of 1,669 hard drives and 1,518 SSDs. Of that number, there were 3,187 boot drives and 172,256 data drives. As of March 31, 2021, Backblaze had 175,443 drives spread across four data centers on two continents.
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