backblaze 的季度质检报告
https://www.backblaze.com/cloud-storage/resources/hard-drive-test-data上个季度
https://www.backblaze.com/blog/backblaze-drive-stats-for-q2-2024/An HGST surprise: Over the years, the HGST drive models we have used performed very well. So, when the 12TB HGST (model: HUH721212ALN604) drive showed up with a 7.17% AFR for Q2, it’s news. Such uncharacteristic quarterly failure rates for this model actually go back about a year, although the 7.17% AFR is the largest quarterly value to date. As a result, the lifetime AFR has risen from 0.99% to 1.57% over the last year. While the lifetime AFR is not alarming, we are paying attention to this trend.
I believe the WD 14and 16TB technology was based on the HGST tech they got when WD acquired HGST. I could be wrong, but that's what I heard. I'm not sure about the 22TB drives and the tech inside. The failure rate jump is a little surprising, so I'll dig into that over the coming months. Maybe its a bathtub curve thing with early failures, we did add over 10K of them in the last two quarters. If I find anything interesting I'll let folks know.