WebSphere Application Server V7.0: Concepts ... - IBM Redbooks

It is also possible to replicate sessions saved in an application server of the
cluster to other cluster members with the session replication feature of
WebSphere Application Server.
A distributed server configuration can be created in one of three ways:
► Create a deployment manager profile to define the deployment manager.
Then, create one or more custom node profiles. The nodes defined by each
custom profile can be federated into the cell managed by the deployment
manager during profile creation or manually later. The custom nodes can exist
inside the same operating system image as the deployment manager or in
another operating system instance. Application servers can then be created
using the Integrated Solutions Console or wsadmin scripts.
The method is useful when you want to create multiple nodes, multiple
application servers on a node, or clusters. The process for creating and
federating each node is quick.
► Create a deployment manager profile to define the deployment manager.
Then, create one or more application server profiles and federate these
profiles into the cell managed by the deployment manager. This process adds
both nodes and application servers into the cell. The application server
profiles can exist on the deployment manager system or on multiple separate
system or z/OS image.
This method is useful in development or small configurations. Creating an
application server profile gives you the option of having the sample
applications installed on the server. When you federate the server and node
to the cell, any installed applications can be carried into the cell with the
server.
► Create a cell profile. This actually creates two profiles, a deployment manager
profile and a federated application server profile. Both reside on the same
machine.
This is useful in a development or test environment. Creating a single profile
gives you a simple distributed system on a single server or z/OS images.
58 WebSphere Application Server V7.0: Concepts, Planning, and Design