The VPS server HDD has total size of 12G and 6.7G of it's used but then in Avail column it shows only 944M available while it should be 5.3G.
Do you have any idea what is causing this and how can I fix it
root@server# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/simfs 12G 6.7G 944M 88% /
none 512M 4.0K 512M 1% /dev