Not quite NFS, soft cache consistency for NFS

  • Authors:
  • Rick Macklem

  • Affiliations:
  • University of Guelph

  • Venue:
  • WTEC'94 Proceedings of the USENIX Winter 1994 Technical Conference on USENIX Winter 1994 Technical Conference
  • Year:
  • 1994

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Abstract

There are some constraints inherent in the NFSTM∈ protocol that result in performance limitations for high performance workstation environments. This paper discusses an NFS-like protocol named Not Quite NFS (NQNFS), designed to address some of these limitations. This protocol provides full cache consistency during normal operation, while permitting more effective client-side caching in an effort to improve performance. There are also a variety of minor protocol changes, in order to resolve various NFS issues. The emphasis is on observed performance of a preliminary implementation of the protocol, in order to show how well this design works and to suggest possible areas for further improvement.