In Ubuntu, each file and directory is a so-called
inode. You can use
df -i to check the number of inodes in use and available for all mounted filesystems.
If you create a new EXT4-partition, it uses the default number of inodes, which under normal conditions should be sufficient. However, if you run a system that produces millions of small files, how do you need to create a new EXT4 partition with an extra large number of inodes? What is the maximum?
- You can NOT change the number of available inodes AFTER the EXT4-partition has been created