Re: SUMMARY: File system full, but not according to du;(

P.S. Another option is possibley to unmount the file system and run fsck.
Thanks to Fonseca Mario <Mario.Fonseca@lbhf.gov.uk>

On Sat, 30 Apr 2005, Joe R. Jah wrote:

> Date: Sat, 30 Apr 2005 00:39:30 -0700 (PDT)
> From: Joe R. Jah <jjah@sol.ccsf.cc.ca.us>
> To: sunmanagers@sunmanagers.org
> Subject: SUMMARY: File system full, but not according to du;(
>
> Wow!  That was quick;)
>
> Many thanks to:
>
> Mike Salehi <mike.salehi@kodak.com>
> "Mangat, Vicky" <Vicky.Mangat@centrica.co.uk>
> "Sjolshagen, Thomas (Tru64 UNIX Eng.)" <thomas.sjolshagen@hp.com>
> Rick Rezinas <rick@beerdrinker.org>
> Scott M. Sorrentino <scott@sorrentino.net>
> Michael Schulte <mike@babbage.cs.umsl.edu>
> Matthew Stier <Matthew.Stier@us.fujitsu.com>
> Iain Miller <iainonthemove@gmail.com>
>
> Original question:
>
> > Since early this morning one of my partitions have become full:
> >
> > # df /dptweb
> > Filesystem   1K-blocks     Used    Avail Capacity  Mounted on
> > /dev/amir0d   25019863 23770030    -1161   100%    /dptweb
> >
> > However:
> >
> > # du -s /dptweb
> > 6680278 /dptweb
> >
> > How can I resolve the problem.
>
> Michael's response is the most comprehensive, and doesn't need to be
> summarized;)
>
> On Fri, 29 Apr 2005, Michael Schulte wrote:
>
> > Date: Fri, 29 Apr 2005 13:58:05 -0500 (CDT)
> > From: Michael Schulte <mike@babbage.cs.umsl.edu>
> > To: jjah@sol.ccsf.cc.ca.us
> > Subject: Re: File system full, but not according to du;(
> >
>
> > The easy solution: reboot
> > The hard solution: find the process that is holding a deleted file open, and
> >    kill that process.
> >
> > The problem is (very probably): when a file is deleted, the file space is
> >    NOT recovered until all the processes that have the file open have
> >    closed it (or died).  Many system processes open a file when they start
> >    and never close it; if someone deletes that file, the space is still
> >    allocated.
> >
> > You notice the problem because df and du count the space differently.
> >    Df counts space from the inodes (which gives all allocated space);
> >    du follows the directory structure, so it only get file space accessible
> >    by name.
> >
> > ---
> > Michael Schulte                    Specialist in Computer Science
> > Math/CS Dept. (MC-61)              (314) 516 5239
> > Univ. of Missouri-St. Louis        schulte@cs.umsl.edu
> > One University Boulevard           http://www.cs.umsl.edu/~schulte
> > St. Louis, MO  63121  USA

Regards,

Joe
-- 
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