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Solaris™ Internals: Core Kernel Components by Richard McDougall, Jim Mauro

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13.1. Solaris File System Framework

Solaris includes a framework, the virtual file system framework, under which multiple file system types are implemented. Earlier implementations of Unix used a single file system type for all of the mounted file systems, typically, the UFS file system from BSD Unix. The virtual file system framework was developed to allow Sun's distributed computing file system (NFS) to coexist with the UFS file system in SunOS 2.0; it became a standard part of System V in SVR4 and Solaris.

Each file system provides file abstractions, arranged in a hierarchical directory structure. We can categorize Solaris file systems into the following types:

  • Storage based — Regular file systems that provide facilities for persistent storage ...

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