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33 .\" @(#)0.t 8.1 (Berkeley) 6/8/93
37 .b "The 4.4BSD NFS Implementation"
41 .i "University of Guelph"
47 .eh 'SMM:06-%''The 4.4BSD NFS Implementation'
48 .oh 'The 4.4BSD NFS Implementation''SMM:06-%'
50 The 4.4BSD implementation of the Network File System (NFS)\** is
51 intended to interoperate with
53 \**Network File System (NFS) is believed to be a registered trademark of
56 other NFS Version 2 Protocol (RFC1094) implementations but also
57 allows use of an alternate protocol that is hoped to provide better
58 performance in certain environments.
59 This paper will informally discuss these various protocol features and
61 There is a brief overview of the implementation followed
62 by several sections on various problem areas related to NFS
63 and some hints on how to deal with them.
65 Not Quite NFS (NQNFS) is an NFS like protocol designed to maintain full cache
66 consistency between clients in a crash tolerant manner. It is an adaptation
67 of the NFS protocol such that the server supports both NFS
68 and NQNFS clients while maintaining full consistency between the server and
70 It borrows heavily from work done on Spritely-NFS [Srinivasan89], but uses
71 Leases [Gray89] to avoid the need to recover server state information