If I remember correctly du will ignore unreadable directories and files silently, are you sure that your user has read access to all the sub-directories? A less likely problem could be disk corruption. You could get your sysadmin to run fsck in single user mode and check to see if anything appears in the lost+found directory. Dave On Wed, May 12, 2010 at 5:14 PM, Subodh Deshpande < deshpande.subodh@xxxxxxxxx> wrote: > Thanks Niall, > > I will check this fact with our sysadmin..will updatee you..subodh > > > > On 12 May 2010 19:26, Niall Litchfield <niall.litchfield@xxxxxxxxx> wrote: > >> Most commonly one or more large files have been deleted (and so do not >> show up in the du output) but the inodes have not yet been released by one >> or more processes - so they are still included in the df output. >> >> On Wed, May 12, 2010 at 2:37 PM, Subodh Deshpande < >> deshpande.subodh@xxxxxxxxx> wrote: >> >>> >>> hi all, >>> >>> I am facing a very strange issue on one of the hardsik when OEM and rman >>> are installed both are 10g. >>> Out of three attached hardsik to this box the problem is with only on >>> hardisk.. >>> >>> e.g. df -h >>> Filesystem Size Used Avail Use% Mounted on >>> /dev/sda1 18G 7.9G 8.9G 47% / >>> /dev/sda2 145M 15M 123M 11% /boot >>> /dev/sda3 9.8G 9.0G 236 M 98% /oracle >>> none 1.9G 0 1.9G 0% /dev/shm >>> adata >>> When I used to check the space as a root and/or as oracle user it shows >>> me almost 98% used and sometimes even 100%. >>> And when I navigate to that particular hardisk and stareted counting >>> space occupied >>> >>> cd /oracle >>> du -sh admin oradata product >>> >>> 1.3M admin >>> 32 M oradata >>> 4.5 G product >>> >>> the difference of nearly 50% of space..what could be the issue >>> >>> thanks..subodh >>> >>> >>> >> >> >> >> -- >> Niall Litchfield >> Oracle DBA >> http://www.orawin.info >> > > > > -- > ============================== > DO NOT FORGET TO SMILE TODAY > ============================== >