Component Duplication Scenario Parent topic

To explain component duplication for the server, refer to the following scenario:

Server Component Duplication Scenario

Full patterns on the OfficeScan server
Current version: 171
Other versions available:
169
167
165
161
159
  
Latest version on the ActiveUpdate server
173.175
171.175
169.175
167.175
165.175
163.175
161.175
159.175
157.175
155.175
153.175
151.175
149.175
147.175
        
  1. The OfficeScan server compares its current full pattern version with the latest version on the ActiveUpdate server. If the difference between the two versions is 14 or less, the server only downloads the incremental pattern that accounts for the difference between the two versions.
    Note
    Note
    If the difference is more than 14, the server automatically downloads the full version of the pattern file and 14 incremental patterns.
    To illustrate based on the example:
    • The difference between versions 171 and 175 is 2. In other words, the server does not have versions 173 and 175.
    • The server downloads incremental pattern 171.175. This incremental pattern accounts for the difference between versions 171 and 175.
  2. The server merges the incremental pattern with its current full pattern to generate the latest full pattern.
    To illustrate based on the example:
    • On the server, OfficeScan merges version 171 with incremental pattern 171.175 to generate version 175.
    • The server has 1 incremental pattern (171.175) and the latest full pattern (version 175).
  3. The server generates incremental patterns based on the other full patterns available on the server. If the server does not generate these incremental patterns, clients that missed downloading earlier incremental patterns automatically download the full pattern file, which will consequently generate more network traffic.
    To illustrate based on the example:
    • Because the server has pattern versions 169, 167, 165, 163, 161, 159, it can generate the following incremental patterns:
      169.175, 167.175, 165.175, 163.175, 161.175, 159.175
    • The server does not need to use version 171 because it already has the incremental pattern 171.175.
    • The server now has 7 incremental patterns:
      171.175, 169.175, 167.175, 165.175, 163.175, 161.175, 159.175
    • The server keeps the last 7 full pattern versions (versions 175, 171, 169, 167, 165, 163, 161). It removes any older version (version 159).
  4. The server compares its current incremental patterns with the incremental patterns available on the ActiveUpdate server. The server downloads the incremental patterns it does not have.
    To illustrate based on the example:
    • The ActiveUpdate server has 14 incremental patterns:
      173.175, 171.175, 169.175, 167.175, 165.175, 163.175, 161.175, 159.175, 157.175, 155.175, 153.175, 151.175, 149.175, 147.175
    • The OfficeScan server has 7 incremental patterns:
      171.175, 169.175, 167.175, 165.175, 163.175, 161.175, 159.175
    • The OfficeScan server downloads an additional 7 incremental patterns:
      173.175, 157.175, 155.175, 153.175, 151.175, 149.175, 147.175
    • The server now has all the incremental patterns available on the ActiveUpdate server.
  5. The latest full pattern and the 14 incremental patterns are made available to clients.