[CentOS] du vs df size difference

Robert Heller heller at deepsoft.com
Wed Sep 30 21:22:23 UTC 2009


At Wed, 30 Sep 2009 14:10:46 -0700 (PDT) CentOS mailing list <centos at centos.org> wrote:

> 
> Ryan Pugatch wrote:
> 
> > I recognize that in most cases du and df are not going to report the
> > same but I am concerned about having a 12GB disparity.  Does anyone have
> > any thoughts about this or reason as to why there is a big difference?
> > I have read a few articles online about it and none have really shown
> > such a large difference.
> 
> du won't look at deleted files, while df will.

df does not look at files (deleted or not) at all!  It just looks at
allocated inodes.

> 
> run
> 
> lsof | grep deleted
> 
> and see if any files are deleted are still open, space from them
> will not be freed until the process releases the file handle.
> 
> nate
> 
> 
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>                                                                                                                     

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