In what types of systems can inode exhaustion occur?

Inode exhaustion can occur in file systems where the number of files and directories exceeds the maximum available number of Inodes. This is typical for systems with a large number of small files.

Common cases:

• Mail servers, where a huge number of small files are created (e.g., emails).
• Log files, if the system generates many small logs.
• File servers with a large number of small documents.

When Inodes run out, the system cannot create new files even if there is free space on the disk. To resolve this, you need to either increase the number of Inodes when creating the file system or delete unnecessary files.