[linux-lvm] lvm size mismatch?

[linux-lvm] lvm size mismatch?

[Soon-Son Kwon]

Hi I am using lvm on debian woody.
The version would be about 1.0.x.

foo:/var# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda1              11G  8.1G  1.9G  81% /
/dev/vol/var           18G   16G  2.7G  85% /var
/dev/vol/home         4.9G  1.8G  3.1G  36% /home
/dev/vol/tmp          500M   61M  439M  13% /tmp
/dev/extra/data        70G  9.5G   60G  14% /data

foo:/var# du . -sh
5.4G    .
foo:/var#

Please take a look at /dev/vol/var which is 18G big and it says
16G is already used.

But when I check the disk usage by running du command, it shows
only 5.4G is used.

Then...where does this size mismatch come from?
-- 
-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
  Shawn Soon-Son Kwon, founder and leader of KLDP
           ( http://kldp.org ,  http://kldp.net )
  Phone: 82-16-535-7282  Homepage: http://kldp.org/~kss
-*-*-*-t-h-e-*-o-p-e-n-*-s-o-u-r-c-e-*-c-o-m-m-u-n-i-t-y-

Re: [linux-lvm] lvm size mismatch?

[David Johnston]

On Mon, 2004-02-23 at 19:56, Soon-Son Kwon wrote:
> Hi I am using lvm on debian woody.
> The version would be about 1.0.x.
> 
> foo:/var# df -h
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/vol/var           18G   16G  2.7G  85% /var
> 
> foo:/var# du . -sh
> 5.4G    .
> 
> where does this size mismatch come from?

iirc, df looks at the filesystem's free space maps, while du sums the
file sizes as listed in the directories.  I'd guess that you've got
10.6G marked as "in use" in the free space maps that isn't referenced by
any inode. 'fsck -f /var' should fix it; remember that you'll have to
unmount /var first.

-- 
David Johnston <david@littlebald.com>
Little Bald Consulting, LLC