Chapter 15. The UFS File System

Updated by Frank Batschulat, Shawn Debnath, Sarah Jelinek, Dworkin Muller, and Karen Rochford

The UFS file system is the general-purpose, disk-based file system that is shipped with Solaris today and has been the default file system since early versions of SunOS 4.x. For over 20 years, UFS has undergone extensive changes to keep pace with the performance, security, and reliability requirements of today's modern enterprise applications.