unmounting problem

Hello, can someone help me with the problem am facing unmounting a filesystem
I wanted to unmount /oradata cause i created it with a larger size and wanted to umount it , delete the fs and create again with less size.
i have done below but nothing so far.
1) iam not in /oradata directory
2) i get error below while running umount /oradata
umount /oradata
umount: error unmounting /dev/oraclelv2: Device busy
3) fuser /oradata gives nothing
4) fuser -dV /oradata gives nothing
5) ps -ef|grep /oradata gives nothing
6)rebooted and did all operations and still cannot unmount

any suggestions pls
thanks in advance
karthik

hi, as regards to the above problem, the OS is AIX 5.3

Try:
fuser /dev/oraclelv2
Also, is anything mounted on top of /oradata? You have to unmount that first.

Last resort: Try commenting /oradata out of /etc/fstab (may be /etc/filesystems on AIX) and then reboot.

u were indeed rite, there were filesystems under /oradata
such as /oradata/arclogs
/oradata/backups and so on..
unmounting them did the trick.

Thank u, my mind totally went blank on that one.

k