Coda Distributed File System - PowerPoint PPT Presentation

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Coda Distributed File System

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Title: Coda Distributed File System


1
Coda Distributed File System
2
Introduction to File Systems
  • Definition of File System
  • Provides operations for storage, access,
    retrieval, manipulation and tracking of data
  • Network File System
  • Distributed File System
  • Coda A research project

3
Features of Coda
  • High Availability
  • Scalability
  • Performance and efficiency
  • Server replication
  • Security model for authentication, encryption and
    access control

4
Coda Architecture
  • Based on AFS architecture
  • Comprised of Vice and Virtue nodes

5
Coda Architecture
  • Virtue hosts user-level process called Venus
  • Venus communicates with Vice file servers
  • Vice file servers maintain files and provide
    authentication feature
  • Coda provides globally shared namespace

6
Implementation of Coda features
  • Disconnected operation
  • Client side caching
  • Provides repair tools to resolve conflicts

7
Companies using Coda
  • Microsoft
  • Hewlett-Packard
  • ZOTECA
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