ReFS and sparse files in Windows 2012R2

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hello,

i've got strange issue windows server 2012r2 / refs , sparse files.

to manage sparse files used fsutil tool.

fsutil file   createnew c:\test.txt 0x200000    // create 2048kb file, filled zeroes

fsutil sparse setflag c:\test.txt               // mark file sparse

fsutil sparse setrange c:\test.txt 0 0x200000   // mark specified region in file sparse save space on disc

if use set of commands in windows sever 2012 / refs environment file size on disk 64kb same set of commands run in windows server 2012r2 , refs

do not save disc space (the size on disk still 2048kb). have idea can cause such behaviour?

according documentation refs (resilient file system) supports sparse files. changed in windows server 2012 r2?

thanks in advance suggestions.



what cluster sizes in both cases?

cheers,

anton kolomyeytsev [mvp]

starwind software chief architect

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Windows Server  >  File Services and Storage



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