DS notes #4

dt - 24/1/17


DCE - Distributed Computing Environment

  • Defined - OSF (Open Software Foundation) includes IBM
  • not an OS - not application
  • Set of tools and services
            - installed - OS
            - Platform - distributed Application
                 For example- windows, linux
                                        Domain OS, VMS
  • Used network, hardware and transport softwware

Fig- DCE based distributed system

IDEA

  • Collection systems - interconnected - add DCE Software
  • Hides differences between machines.


  • DCE Components

  1. Thread package
  2. RPC
  3. Distiributed Time services - DTS Synchronization clocks of all system.
  4. Name Services-
                  - Cell Directory Service - CDS
                  - Global Directory Services - GDS
                  - Global Directory Agent - GDA
                  - Resources -uniquely named and accessed.
     5)   Security services
                Tools - authentication - authorization.

     6)   Distributed File system (DFS)

DS notes #4 DS notes #4 Reviewed by akshay salve on 10:59 PM Rating: 5

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