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System availability
With WebSphere eXtreme Scale, we are adding two architectural components:
- catalog server
- containers (appservers; JVMs)
We consider the availability of these components in the same way that we consider the availability of application servers in a cluster.
Configure the network...
- Configure a minimum of three Catalog Server instances.
These can run in the deployment manager and node agents and will add little overhead.
- Configure a minimum of three containers
This ensures that the data and requests will be spread evenly even after a grid ripple-start (a ripple start stops, then starts each application server in a cluster, one at a time).
Network availability, as in other areas of the infrastructure, is critical for operation of Commerce with eXtreme Scale.