Thank you so much for replying to me regarding this.
So just to be clear
on the RedHat Linux server cd to every mount point and run the following command
dd if=/dev/zero of=dummy-file bs=1M; rm dummy-file
will this clear all the unused space?? or just 1M?? can I increase the 1M to say 1000M if I know there is a lot more room to clear??
and then after it is done I would delete the dummy-file correct??
thanks again