Unverified55% confidenceCautionTime unknown

存放重要资料或唯一副本时不要只依赖单块移动硬盘，硬盘属于随时可能故障的消耗品；关键数据应遵循3-2-1备份(3份/2种介质/1份异地)

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55%

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Long-term

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移动硬盘category

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Unverified数据无价场景下不建议只依赖单盘或RAID0，RAID不等于备份，重要数据应遵循3-2-1原则：3份副本、2种介质、1份异地（如再同步到云或另一块外置盘）79% similar Unverified存放重要且唯一的数据不建议只靠单块移动固态盘，固态存储长期断电有数据衰减风险，冷备份应搭配机械硬盘或云存储做3-2-1备份79% similar

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