minus disk usage

[GMO-HS Yoichi Takahashi]

Hi Eric 

Thank you for your prompt reply.

> It may be changing because files are being added & removed
> at the time?  As for the negative...

I imagine you're right

> What kernel and what coreutils are you using?
 2.6.18-8.el5PAE #1 SMP Thu Mar 15 20:29:51 EDT 2007 i686 i686 i386 GNU/Linux

Name        : coreutils                    Relocations: (not relocatable)
Version     : 5.97                              Vendor: CentOS
Release     : 23.el5_4.1                    Build Date: Tue Oct 27 11:12:41 2009
Install Date: Wed Feb  9 17:41:18 2011      Build Host: builder16.centos.org
Group       : System Environment/Base       Source RPM: coreutils-5.97-23.el5_4.1.src.rpm
Size        : 9053932                          License: GPLv2+
Signature   : DSA/SHA1, Tue Oct 27 23:47:24 2009, Key ID a8a447dce8562897
URL         : http://www.gnu.org/software/coreutils/
Summary     : The GNU core utilities: a set of tools commonly used in shell scripts
Description :
These are the GNU core utilities.  This package is the combination of
the old GNU fileutils, sh-utils, and textutils packages.

Filesystem           4K-blocks      Used Available Use% Mounted on
/dev/sda2             25393143   2685539  21396901  12% /
  File: "/"
    ID: 0        Namelen: 255     Type: ext2/ext3
Block size: 4096       Fundamental block size: 4096
Blocks: Total: 25393143   Free: 22707604   Available: 21396901
Inodes: Total: 26214400   Free: 26037500

I did many things,The server has recovered. 
Something about this bothers me
Let's bring this matter to a close.
You will hear from me again.