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TERMINOLOGY

  • branch: A base path used in the pool.
  • pool: The mergerfs mount. The union of the branches.
  • relative path: The path in the pool relative to the branch and mount.
  • function: A filesystem call (open, unlink, create, getattr, rmdir, etc.)
  • category: A collection of functions based on basic behavior (action, create, search).
  • policy: The algorithm used to select a file when performing a function.
  • path preservation: Aspect of some policies which includes checking the path for which a file would be created.