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    <title>不可变备份 on Answer</title>
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      <title>RAID不是备份：为何你的数据保护策略可能正在给你虚假的安全感</title>
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      <description>从GitLab 2017年的数据丢失事故、RAID 5重建失败的概率计算、勒索软件对备份的定向攻击，到3-2-1-1-0和不可变备份的现代演进，系统梳理数据保护领域最常见的认知误区。基于Backblaze硬盘故障率统计、Sophos勒索软件报告、Veeam数据保护趋势报告等权威信源，揭示RAID与备份的本质区别，以及如何在勒索软件时代构建真正可靠的数据保护策略。</description>
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