co mi zjadlo 25GB na pustym dysku?

[Pawel Sikora]

witam,

mam taka ciekawostke, urzadzenie /dev/md2:

md2 : active raid0 sda4[0] sdd4[3] sdc4[2] sdb4[1]
      1699028992 blocks super 1.2 512k chunks

siedzi tam sobie ext4 (-m0) i jeden pusty katalog lost+found:

/dev/md2        1.6T   25G  1.6T   2% /home/users

dumpe2fs pokazuje, ze journal ma 128MB:

Filesystem state:         clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              106192896
Block count:              424757248
Reserved block count:     0
Free blocks:              418042015
Free inodes:              106192883
First block:              0
Block size:               4096
Fragment size:            4096
Reserved GDT blocks:      922
Blocks per group:         32768
Fragments per group:      32768
Inodes per group:         8192
Inode blocks per group:   512
RAID stride:              128
RAID stripe width:        512
Flex block group size:    16
Filesystem created:       Mon Nov  7 13:12:31 2011
Last mount time:          Thu Jan 26 10:40:34 2012
Last write time:          Thu Jan 26 10:40:34 2012
Mount count:              3
Maximum mount count:      26
Last checked:             Thu Jan 26 10:19:22 2012
Check interval:           15552000 (6 months)
Next check after:         Tue Jul 24 11:19:22 2012
Lifetime writes:          60 GB
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               256
Required extra isize:     28
Desired extra isize:      28
Journal inode:            8
Default directory hash:   half_md4
Directory Hash Seed:      33f81c32-1c31-4c65-b683-6112af7773cd
Journal backup:           inode blocks
Journal features:         journal_incompat_revoke
Journal size:             128M
Journal length:           32768
Journal sequence:         0x000013d8
Journal start:            1


ale za fo fsck pokazuje jakies '1 large file', ktorego rozmiar by pasowal
do tego zjawiska: 6715231*4kB ~ 25GB.


e2fsck 1.41.14 (22-Dec-2010)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

      11 inodes used (0.00%)
       0 non-contiguous files (0.0%)
       0 non-contiguous directories (0.0%)
         # of inodes with ind/dind/tind blocks: 0/0/0
         Extent depth histogram: 1
 6715231 blocks used (1.58%)
       0 bad blocks
       1 large file

       0 regular files
       2 directories
       0 character device files
       0 block device files
       0 fifos
       0 links
       0 symbolic links (0 fast symbolic links)
       0 sockets
--------
       2 files


ktos wie co to za elf tam siedzi?