Episode filesystem

Episode filesystem

infobox filesystem
name = Episode
full_name = Episode
developer = Transarc
introduction_os =
introduction_date = 1992
partition_id =
directory_struct = 8KB blocks with hash table
file_struct = inode-based
bad_blocks_struct =
max_filename_size = 256 bytes
max_files_no =
max_volume_size = | max_file_size =
filename_character_set =
dates_recorded =
date_range =
forks_streams = No
attributes = POSIX
file_system_permissions = POSIX ACLs
compression = No
encryption = No
OS = 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.

External links

* [http://surfvi.com/~ota/episode.html The Episode File System (USENIX Paper)]


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