Btrfs (B-tree file system) is a modern file system for Linux that offers advanced features like snapshots, pooling, and data integrity checks. It allows users to create backups of their data at specific points in time, making it easier to recover from accidental deletions or system failures. One of the key benefits of Btrfs is its ability to manage multiple storage devices as a single volume, which simplifies storage management. Additionally, it supports dynamic resizing, meaning users can easily add or remove storage space without downtime, enhancing flexibility for various applications.