How can I check the actual size used in an NTFS directory with many hardlinks?

Posted by kbyrd on Super User See other posts from Super User or by kbyrd
Published on 2010-12-02T22:16:44Z Indexed on 2012/11/15 11:09 UTC
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windows-7

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ntfs

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hardlink

On a Win7 NTFS volume, I'm using cwrsync which supports --link-dest correctly to create "snapshot" type backups. So I have:

z:\backups\2010-11-28\cygdrive\c\Users\...
z:\backups\2010-12-02\cygdrive\c\Users\...

The content of 2010-12-02 is mostly hardlinks back to files in the 2010-11-28 directory, but there are a few new or changed files only in 2010-12-02. On linux, the 'du' utility will tell me the actual size taken by each incremental snapshot. On Windows, explorer and du under cygwin are both fooled by hardlinks and shows 2010-12-02 taking up a little more space than 2010-11-28.

Is there a Windows utility that will show the correct space acutally used?

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