How to determine what is stealing space on the server when physically occupied by not more than 30% of the disk, but ncdu is impossible to ascertain?

df-hi
Filesystem Inodes IUsed IFree IUse% Mounted on
383 57K 57K udev 1% /dev
tmpfs 62K 61K 934 2% /run
/dev/vda1 640K 640K 0 100% /
tmpfs 1 62K 62K 1% /dev/shm
4 tmpfs 62K 62K 1% /run/lock
tmpfs 16 62K 62K 1% /sys/fs/cgroup
4 tmpfs 62K 62K 1% /run/user/0

df-h
Filesystem Size Used Avail Use% Mounted on
udev 227M 0 227M 0% /dev
tmpfs 49M 45M 3.9 M 8% /run
/dev/vda1 9.8 G 7.1 G 2.7 G 73% /
tmpfs 245M 0 245M 0% /dev/shm
tmpfs 5.0 M 0 5.0 M 0% /run/lock
tmpfs 245M 0 245M 0% /sys/fs/cgroup
tmpfs 49M 0 49M 0% /run/user/0
June 26th 19 at 14:12
3 answers
June 26th 19 at 14:14
Solution
On the root partition too many files - free inode (inodes) ended.
June 26th 19 at 14:16
Why just ncdu
du -sh * | sort -h
June 26th 19 at 14:18
The question was of course stupid. It was Packed the tmp folder
If anyone need a simple solution:
find . -type f -exec rm -v {} \;
using xargs, bued 400 times faster - Lavern_Schuppe commented on June 26th 19 at 14:21

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