Date Created: Wed 22-Sep-2010

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    CCLT The Standard Installation Model vs The Full-Copy Installation Model

    The Standard Installation Model
    The Standard installation model creates ccase-home-dir on the target system as a
    directory and populates it with a combination of locally installed files and links to the
    file in the release area. All shared libraries and critical executables are copied onto the
    target system. Files such as Help and nonessential scripts and utilities are installed as
    links to the release area. Systems installed using the Standard model perform all
    essential ClearCase functions as long as the ClearCase LT server is accessible, even
    when the release area is inaccessible. There is no performance penalty associated with
    the Standard installation model, and it consumes significantly less disk space than the
    Full-Copy model.
    We recommend the Standard installation model for the ClearCase LT server as well as
    for any client that has adequate disk space and does not need to perform nonessential
    ClearCase LT operations when the release area is unavailable.

    The Full-Copy Installation Model
    The Full-Copy installation model creates ccase-home-dir on the target system as a
    directory and populates it with all the files and directories from the release area. No
    symbolic links to files in the release area are needed. Systems installed with this model
    perform all ClearCase functions as long as the ClearCase LT server is accessible.
    We recommend the Full-Copy model if you are installing a host that must run essential
    and nonessential ClearCase LT operations even when the release area is unavailable.
    You are required to use the Full-Copy model when you are installing a host that
    provides a shared ccase-home-dir for Mounted client installations.
    For any other situation, the Full-Copy model probably represents an unnecessarily
    conservative approach to installation

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