WebSphere® eXtreme Scale can be deployed
into two types of environments: local or distributed. The configuration
that is necessary depends on the type of deployment environment.
Local environments
When you deploy in a local
environment, eXtreme Scale runs within a single Java™ virtual
machine, and is not replicated. A local environment requires
an ObjectGrid XML file or ObjectGrid APIs.
Distributed environments
When you deploy in
a distributed environment, eXtreme Scale runs across a set of Java virtual
machines. With this configuration,
you can use data replication and partitioning. A distributed environment
can be further classified as a dynamic deployment topology in which
you can add servers as needed. As with a local environment, an ObjectGrid
XML file, or an equivalent programmatic configuration, is needed in
a distributed environment. Additionally, you must provide a deployment
policy XML file with configuration details for your eXtreme Scale in-memory data grid.