Evaluation of design alternative for a cluster file system

  • Authors:
  • Murthy Devarakonda;Ajay Mohindra;Jill Simoneaux;William H. Tetzlaff

  • Affiliations:
  • IBM Thomas J. Watson Research Center, Hawthorne, NY;IBM Thomas J. Watson Research Center, Hawthorne, NY;Intel Corp. and IBM Thomas J. Watson Research Center, Hawthorne, NY;IBM Thomas J. Watson Research Center, Hawthorne, NY

  • Venue:
  • TCON'95 Proceedings of the USENIX 1995 Technical Conference Proceedings
  • Year:
  • 1995

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Abstract

Based on implementation experience and measurements, this paper presents an evaluation of design alternatives to a cluster file system. The file system is targeted for IBM cluster systems, Scalable POWERparallel and AIX HACMP/600. We considered a shared disk approach where serialized, multiple instances of a single-system file system directly access file data as disk blocks, and a shared file system approach which is the conventional method of distributing file system function between a client and a server. We conclude that the shared disk approach suffers form the difficulties of metadata serialization, pooor write-sharing performance, and read throughput.