What is inode?
Inode is a data structure that stores the information about all files created on your hosting account. The number of inodes indicates number of files, folders, email or anything you store on your web hosting account. Each file on your web hosting account is identified by an inode number in the file system. Inodes store the important data about files such as user, group ownership, access mode and file type.
What is inode Limit in Linux Shared Hosting?
How Can I Reduce My inode Count?
You can reduce number of inodes in your account by simply deleting unwanted files or emails from your account.