WebSphere eXtreme Scale v8.6 Key Concepts and Usage Scenarios

Architecture and topologies

This chapter provides an overview of the architecture of the IBM WebSphere eXtreme Scale product. It explains the terminology for the main components, which in turn provides a strong basis for defining eXtreme Scale topologies.

This chapter includes the following sections:

•“WebSphere eXtreme Scale architecture” on page 28

•“Catalog server” on page 35

•“Replication: Primary and replica shards” on page 44

•“APIs used to access the grid” on page 48

•“A simple example” on page 54

•“Scalability sizing considerations” on ...