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Remote File Sharing

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The Remote File System (RFS) was a file access protocol developed by AT&T in the 1980s. It was first delivered with UNIX System V Release 3. Compared to NFS it was superior on purely logical grounds, a true network file system which preserved UNIX semantics across the network. Unlike NFS the RFS daemon maintains state to keep track of how many times a file has been opened, if any process has locked the file, etc.

  • Preserves UNIX semantics. (File locking, etc)
  • Allows mounting of devices across the network (e.g /dev/cdrom)
  • Transparent access to files. Users needn't know where a file is located.
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