Gary Dale a écrit : > I have a Jessie/64 server that seems to have lost a lot of disk space. > It boots from a 55G SSD (mounted as /) with a RAID6 array for /home. df > shows that the SSD is full but I can't find out where the space has > gone. When I add up all the space in the various directories off /, they > don't come anywhere near 55G. du -cxh shows only 4.7G being used.
Usually "lost" space is used by files which have been deleted but are still opened by a process (check with lsof | grep deleted) or hidden under a mount point (check by bind-mounting the filesystem on a temporary mount point) > > I also tried using fstrim (although the SSD is mounted with the discard > option) but that didn't help. Of course not. fstrim does not free space, it just marks free blocks for the underlying storage.
