This courselet offers a practical and conceptual introduction to the XFS file system, designed for high-performance and scalability. Learners will explore the motivation behind XFS’s design, understand its key features, and examine how mechanisms like metadata journaling and delayed allocation help achieve its performance goals. The courselet guides users through mounting and unmounting XFS, configuring mount options, and performing I/O operations. Finally, learners will benchmark and compare the performance of XFS with ext4, gaining insights into when XFS is the preferred choice for demanding workloads.