Backblaze公布了2026年第二季度硬盘统计报告。1本次报告监测了354,415块硬盘，季度年化故障率达到1.73%，创造了较长时期内的最高水平。1
在硬盘部署趋势方面，20TB以上大容量驱动器的占比已超过25%，反映出数据中心对高容量存储的持续需求。1报告还关注了新兴存储技术的发展，其中西部数据宣布推出40TB UltraSMR硬盘，路线图显示将在2029年前实现100TB容量。1关于叠瓦式磁记录（SMR）技术，相比传统CMR技术可增加约10%-25%的容量。1值得注意的是，Backblaze目前的硬盘群中尚未部署SMR技术的硬盘。1
在单款硬盘表现方面，Seagate的ST8000NM000A、ST12000NM000J和ST14000NM000J三款硬盘在本季度实现了零故障记录。1
Backblaze has released its storage drive statistics for the second quarter of 2026, revealing a concerning trend in hardware reliability. The company analyzed 354,415 hard drives during the period and recorded a quarterly annualized failure rate (AFR) of 1.73%, marking the highest level observed over an extended timeframe 1. The dataset was compiled from a total of 359,101 monitored drives, with the final analysis focusing on the subset that met reporting criteria 1.
The report highlighted significant shifts in data center storage architecture and emerging technologies. Drives with capacities exceeding 20TB now account for more than 25% of Backblaze's deployed infrastructure 1. Among the units tracked, three Seagate models—the ST8000NM000A, ST12000NM000J, and ST14000NM000J—experienced zero failures during the quarter 1. Western Digital has announced its 40TB UltraSMR drive, with a roadmap showing plans to achieve 100TB capacity by 2029 1. Shingled magnetic recording (SMR) technology used in these next-generation drives can increase storage capacity by approximately 10% to 25% compared to conventional magnetic recording (CMR) 1. However, Backblaze currently operates without any SMR drives in its storage fleet 1.
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