Shared hosting accounts, Virtual Private server and Dedicated servers – all come with inode lmit. Any file on your Unix (or linux) system is considered as an inode. For example, an email stored in the system is considered as an inode. This way all the systems are restricted to a number of max inodes.
If you’d like to know the max allowed inodes and the usage – you need to ssh into your system (if you have SSH access) and run the following command:
df -i
This will display the amount of maximum, used and free inodes in different file systems for your unix account.