Hard Disk free space - Something wrong!

[FcbInfo]

Filesystem Size Used Avail Use% Mounted on
/dev/mapper/ssd120 111G 41G 65G 39% /ssd120

But inside of this disk, I have a .raw file, with 80GB.
How it shows only 41GB in use?

Thanks.

 

[shukko]

But inside of this disk, I have a .raw file, with 80GB.
How it shows only 41GB in use?
Thanks.

http://en.wikipedia.org/wiki/Sparse_file