Deduplication support for Windows 2012/2012 R2 Server

[avogelba]

Originally reported by: Oliver (Bitbucket: assarbad, GitHub: assarbad)

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This may be similar to VSS, but not sure. Need to investigate and decide.

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• Bitbucket: https://bitbucket.org/windirstat/windirstat/issue/37

[avogelba]

Original comment by Buzz4209 (Bitbucket: Buzz4209, GitHub: Buzz4209):

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Seems someone fixed this over here:

http://www.edugeek.net/forums/windows-server-2012/145138-tool-like-treesize-can-reflect-upon-true-file-size-when-deduplication-enabled.html

Some more info here:

https://blog.workinghardinit.work/2015/06/08/windows-deduplication-and-mysterious-folder-sizes/

[avogelba]

Original comment by Oliver (Bitbucket: assarbad, GitHub: assarbad):

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Found IO_REPARSE_TAG_DEDUP in winnt.h ... the plot thickens, no?

[avogelba]

Original comment by Oliver (Bitbucket: assarbad, GitHub: assarbad):

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Have installed the respective systems, now need to investigate how those features work internally.