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Solaris™ Internals: Solaris 10 and OpenSolaris Kernel Architecture, Second Edition by Richard McDougall, Jim Mauro

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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.

15.1 UFS Development History

The original version of UFS is derived from the Berkeley Fast File System (FFS) work from BSD UNIX, architected by Marshall Kirk McKusick and Bill Joy in the mid 1980s. The Berkeley FFS was the second major file system available for UNIX and was a leap forward ...

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