[Moosefs-users] how to calculate the space used by snapshot

[youngcow <you...@gm...>]

Hello!

I'm testing MooseFs. I have a question about snapshot.
When I make a snapshot for a directory such as dir1, the snapshot don't
use disk space.But when I change the source dir1's content(such as
change the content of a file), the snapshot will use the disk space.
Now I want to calcuate the disk space usage for snapshot, I can't find
the method.

Thanks.