UNIX for Advanced & Expert Users

yes see below

# umount /data
umount: /data busy
# fuser /data
/data:
# ./usr/local/bin/lsof /data
#

I'm becaming crasy

I realise it! whith your help ;-)
I launch umount -f and miracle i was able to umount it.

pouf now next step resolve the df issue and the size issue on the partition.
I launch the fsck

I've done a newfs on the partition
then try to mount /data

# fsck -m /dev/md/rdsk/d6
** /dev/md/rdsk/d6
ufs fsck: sanity check: /dev/md/rdsk/d6 okay
# fsck -m /dev/md/dsk/d6
** /dev/md/rdsk/d6
ufs fsck: sanity check: /dev/md/dsk/d6 okay

# mount /dev/md/dsk/d6 /data
mount: /dev/md/dsk/d6 is already mounted or /data is busy

I'm afraid I must reboot to be able to mount the partition again, isn't it true?
Have you a solution by restarting a service or something that will permit me to mount without rebooting?
Thanks again

Hi guys,

I firstly would like to thank you very much on your help.

I just would like to explain in short message how the issue was solve this will may help people who will have the same problem or similar.

All process in the post was very useful to solve the issue.

After making the newfs on the partition I delete the directory /data and recreate it. then mount the /data and now everything is clean on the partition.

Cheers,