[KongchangAI]
Unverified90% confidenceSolutionTime unknown

3-2-1备份策略的标准路径:3份数据副本、2种不同介质(本地磁盘+云)、1份异地(云端);云备份软件应作为其中异地那份,与本地NAS/移动硬盘备份互补,不应作为唯一备份

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