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What attribute dose Robocopy look at when applying those flags? data created or updated? If I a group of files is created and later one of them is updated if I run Robocopy with a later date range will the update be copied?

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2 Answers 2

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According to this Technet thread:

minage and maxage refer to the creation date of the file.

minlad and maxlad refer to the last write time of the file.

Note that on later versions of Windows (I think vista and later), last access time stamping is off by default to improve performance.

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There is confusion here and elsewhere, I believe the following is correct:

  1. minage and maxage actually refer to the last modified date of the file (not creation date)

  2. minlad and maxlad actually refer to the last access date of the file.

Sources for the above:

  1. I tested minage with robocopy on Windows 7, and it used last modified date, not creation date. Also backed up by this Technet thread and this thread too.

  2. The robocopy documentation says that minlad & maxlad are the access date.

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