Run
Code:
du --max-depth=1 -x /
to see where the space is being used, then work your way down into whichever directory appears overly large, e.g.,
Code:
du --max-depth=1 -x /var
If it turns out that
du does not see any excessive space being used, then you probably have some process that has a large deleted file held open and using up space on the disk. You can find those by running
Code:
lsof | grep '(deleted)' | sort -k7nr | less
The sort will put the largest files at the top of the list.
All of that will need to be done as root.
