Unverified22% confidenceDecision RuleTime unknown

监控硬盘必须选择CMR（垂直磁记录）盘，绝对不能用SMR（叠瓦式）盘。SMR盘在7×24小时连续写入时会因缓存写满导致掉帧丢录像，西数紫盘WD Purple全系为CMR

1

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22%

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Long-term

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监控专用硬盘category

Related Claims

Unverified不要用SMR叠瓦式硬盘做监控存储，SMR随机写入性能差，多路连续写入易掉帧或录像卡顿，务必选CMR垂直式；监控专用盘基本为CMR86% similar UnverifiedNVR外接监控级硬盘时，机械盘缓存写入型（如WD Purple、希捷酷鹰）比消费级蓝盘更耐7×24小时写入，蓝盘/绿盘连续录像1年内故障率显著升高78% similar

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