![]() ![]() That said, all the data from all of the drive models, including boot drives, is included in the files which can be accessed and downloaded on our Hard Drive Test Data webpage. Note: The Seagate 16 TB drive (model: ST16000NM001G) does show 59 drives and is listed in the report because the one failed drive had not been replaced at the time the data for this report was collected. We use 60 drives as a minimum as there are 60 drives in all newly deployed Storage Pods. Reminiscing aside, when we report quarterly, yearly, or lifetime drive statistics, those models with less than 60 drives are not included in the calculations or graphs. Observant readers might note the model number of those HGST drives and realize they were the last of the drives produced with Hitachi model numbers. On the other end of the spectrum, we still have 25 HGST 4 TB drives (model: HDS5C4040ALE630), putting in time in Storage Pods. For example, we have: 20 Toshiba 16 TB drives (model: MG08ACA16TA) we are putting through our certification process. There were 192 drives (140,059 minus 139,867) that were not included in the list above because we did not have at least 60 drives of a given model. ![]() In comparing drive days with the Toshiba drive, the Seagate 6 TB and HGST 8 TB drives are just as impressive, having no failures in the quarter yet recording 80,626 and 91,000 drive days respectively in Q2 2020. While the Toshiba 4 TB drives recorded less than 10,000 drive days, we have not had a drive failure for that model since Q4 2018, or 54,054 drive days. One year ago (Q2 2019), the quarterly AFR was 1.8%.ĭuring this quarter, three drive models had 0 (zero) drive failures: the Toshiba 4 TB (model: MD04ABA400V), the Seagate 6 TB (model: ST6000DX000) and the HGST 8 TB (model: HUH728080ALE600). In addition, this is the first time the quarterly AFR has been under 1%. The Q2 AFR number is the lowest AFR for any quarter since we started keeping track in 2013. The Annualized Failure Rate (AFR) for Q2 2020 was 0.81% versus Q1 2020 which was 1.07%. ![]()
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