This is a warning to all, this happened to me on a VPS, please read carefully and see if it applies to you:

Your MySQL databases will get corrupted, along with other weird side effects (root will report that is out of quota even though you have no quota for root, etc) if you use 100% of your allocated inodes.

This is not directly related to disk space usage, for example it happened to me with only 56% disk usage.

Here is how to check your inode usage:

Code:
# df -i
Filesystem            Inodes   IUsed   IFree IUse% Mounted on
/dev/vzfs             510000  497571   12429   98% /
If you are that close to the limit, please open a ticket and ask support for help.