The size of the files determines the principle storage needs (including backup) and the level of bandwidth required for capture and eventual display.
文件的大小确定了主要的存储需求(包括备份)和捕获及最终显示信息所需要的带宽级别。
A level 1 backup would save all of the files that had changed since the level 0 backup was done.
级备份会保存自从执行0级备份以来更改过的所有文件。
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