Working with Portal Server Building Modules
No Single Point of Failure
Portal Server natively supports the no single point of failure (NSPOF) scenario. NSPOF is built on top of the best effort scenario, and in addition, introduces replication and load balancing.
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Client
No Single Point of Failure Example
Building Module 1
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Search
Engine
Database
Building Module 2
Portal
Server
Directory
Server
Master
Replica
Directory
Server
Master
Replica
Search
Engine
Database
Chapter 5 Creating Your Portal Design 93
