云存储平台Backblaze发布了2026年第一季度硬盘可靠性报告，数据显示其存储集群可靠性持续改善，同时高容量硬盘已成为新部署的绝对主力。

　　截至季度末，Backblaze全球存储云共监控341，263块生产用硬盘。本季度整体年化故障率为1.24%，较去年同期的1.42%明显改善，虽然较上一季度创纪录的1.13%有所回升，但仍在正常季度波动范围内。

　　容量升级是本季度的显著特征。Backblaze本季度共部署10，220块硬盘，其中超过9，400块容量在20TB以上，占比高达92%。目前20TB及以上容量硬盘已超过86，000块，其整体年化故障率仅为0.85%，表明高容量与高可靠性可以兼得。

　　各型号表现方面，西部数据22TB型号目前是Backblaze集群中单一型号数量最多的硬盘，超过45，000块，年化故障率为0.38%。东芝新部署的24TB型号初期表现极为优异，年化故障率仅0.22%，为全集群最佳。

　　本季度还有多款型号实现零故障，包括HGST 4TB和8TB以及希捷16TB。值得一提的是，Backblaze最早部署的4TB HGST硬盘已使用近九年，目前均已退出季度和终身报告的统计门槛。

　　Backblaze CEO Gleb Budman表示，AI工作负载的存储决策需要以前所未有的规模进行验证，Drive Stats数据能够为这些关键决策提供依据。

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