存储复制的原始网页,快照应用一个或多个稀少文件。
To store the copied original pages, the snapshot USES one or more sparse files.
最初,稀少文件是一个基础上是空的文件,其中包括没有用户数据和尚未分配的磁盘空间,为用户数据。
Initially, a sparse file is an essentially empty file that contains no user data and has not yet been allocated disk space for user data.
当一个快照所采用的,稀少的文件占用了很少的磁盘空间。
When a snapshot is taken, the sparse file takes up little disk space.
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