On Thu, Sep 15, 2016 at 11:52:36AM +0300, Андрей Василишин wrote:
The first thing that comes to mind is that something has a file open,
which was later deleted. Such a deleted file will not show up in du
because it can't be listed, but the blocks the file is using will still
be reported by df. If you have the lsof command installed (apt-get
install lsof) you can try something like lsof | grep -i del | grep
to identify deleted files and the process which has it open.
Thanks for your reply.
lsof | grep -i del | grep /megastorage
You ran it as root?