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This page says
When a task starts, DataSync performs a recursive directory listing to discover all files and file metadata in the source and destination file system. These listings are used to identify differences and determine what to copy, and usually takes between a few minutes to a few hours.
Which suggests it's based on properties such as modification time and size, rather than a checksum.
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- 已提問 6 個月前
- AWS 官方已更新 2 年前
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