A file system for continuous media

  • Authors:
  • David P. Anderson;Yoshitomo Osawa;Ramesh Govindan

  • Affiliations:
  • Sonic Solutions, San Rafael, CA;Sony, Atsugi, Japan;Bellcore, Morristown, NJ

  • Venue:
  • ACM Transactions on Computer Systems (TOCS)
  • Year:
  • 1992

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Abstract

The Continuous Media File System, CMFS, supports real-time storage and retrieval of continuous media data (digital audio and video) on disk. CMFS clients read or write files in “sessions,” each with a guaranteed minimum data rate. Multiple sessions, perhaps with different rates, and non-real-time access can proceed concurrently. CMFS addresses several interrelated design issues; real-time semantics fo sessions, disk layout, an acceptance test for new sessions, and disk scheduling policy. We use simulation to compare different design choices.