[Linux-cluster] Gfs not return available space after delete file

[nattapon viroonsri]

Below is result from  gfs_tool df , df , du , ls


# gfs_tool df  /home
/home:
  SB lock proto = "lock_dlm"
  SB lock table = "testgfs:gfs"
  SB ondisk format = 1309
  SB multihost format = 1401
  Block size = 4096
  Journals = 4
  Resource Groups = 68
  Mounted lock proto = "lock_dlm"
  Mounted lock table = "testgfs:gfs"
  Mounted host data = ""
  Journal number = 0
  Lock module flags =
  Local flocks = FALSE
  Local caching = FALSE
  Oopses OK = FALSE

  Type           Total          Used           Free           use%
  ------------------------------------------------------------------------
  inodes         825            825            0              100%
  metadata       1766           1766           0              100%
  data           34897229       419840         34477389       1%


# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg0-lv0   134G  1.7G  132G   2% /home


result from df and gfs_tool df look same but if use du will show correct 
result
du -sh /home
500K    /home

I do listing file in directory and see nothing left
# ls -la /home
total 508
drwxr-xr-x   2 root root 2048 May 14 22:21 .
drwxr-xr-x  23 root root 4096 May 14 20:53 ..


Do i miss something ?

Regards,
Nattapon



> >
> > Red Hat Enterprise Linux ES release 4 (Nahant Update 4)
> > rhel-4-u4-rhcs-i386
> > GFS-kernel-smp-2.6.9-58.0
> > GFS-6.1.6
> >
> > I have dell 2 nodes connected to emc storage mount gfs partition
> > my problem is after i create file and delete ,  and check with df , gfs 
>not
> > return available space
> > but if i check with du it show result correctly
>
>'gfs_tool df' will probably help in accounting for all the space.
>
>Your storage/powerpath has nothing to do with it.
>
>reclaim turns FREEMETA blocks (free blocks that must be reused for
>metadata) back into FREE blocks (free blocks that can be reused for
>anything).  You shouldn't need to run 'gfs_tool reclaim' unless you have a
>pathological use case.  reclaim isn't nice to use because it has to block
>all fs access from all nodes while it runs.
>
>Dave
>

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