Episode filesystem

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Episode
Developer Transarc
Full name Episode
Introduced 1992
Structures
Directory contents 8KB blocks with hash table
File allocation inode-based
Limits
Max. number of files
Max. filename length 256 bytes
Features
Forks No
Attributes POSIX
File system permissions POSIX ACLs
Transparent compression No
Transparent encryption No
Other
Supported operating systems AIX, Solaris, z/OS

Episode is a POSIX compliant file system most commonly known for its use in DCE/DFS file servers. It was designed to achieve the goals of portability, scaling, and to make more efficient use of available system bandwidth. It used a variety of methods to achieve these goals, one of which was its use of metadata logging, designed to enhance the file system's performance.

The Episode file system is the basis for the IBM z/OS POSIX-compatible file system called zFS.

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