Unverified82% confidenceDecision RuleTime unknown
监控摄像头选卡容量遵循「覆盖周期匹配」原则：128GB约存7-10天1080P循环录像，需保留更久回放的家庭安防建议256GB起，避免频繁覆盖丢失关键片段
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82%
Confidence
Long-term
Relevance
-
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Unverified监控卡容量按录像天数倒推：1080P摄像头约需每天2-4GB，256GB可循环覆盖存约1-2周画面；容量越大覆盖周期越长但单卡损坏损失更多，多路NVR建议专用硬盘而非TF卡89% similarUnverified监控录像循环覆盖需要计算保留天数：8路1080P录满30天约需8-10TB，选盘位时预留RAID冗余后仍应满足此容量，4盘位配4块4TB(RAID5约12TB)可满足84% similarUnverified监控存储容量估算：单路1080P摄像头H.265编码约占12-20GB/天，4路7天全天录像需约500GB，配2TB硬盘可循环存储约3-4周82% similarUnverified计算硬盘需求：单路400万像素摄像头24小时录制约占用25-35GB/天，8路满负荷录制需保留30天则需约7-8TB，建议直接上单盘8TB监控盘避免频繁覆盖82% similarUnverified家用1-4路摄像头选2TB-4TB即可满足15-30天循环覆盖，无需盲目上6TB以上，多余容量在循环录像模式下被反复覆盖并不能延长实际保存天数81% similar
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