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Portal Server on an Application Server Cluster
Appendix C Portal Server and Application Servers 157
To install a BEA cluster, your BEA license for each machine participating in the
cluster must be a special BEA cluster license. See the BEA documentation for the
procedure to get the license and set up a BEA cluster with HttpClusterServlet.
Overview of IBM WebSphere Application Server
The IBM WebSphere Application Server product uses the following definitions:
• Administrative domain. The logical space in which the configurations for
various objects in the WebSphere environment reside. Inside one
administrative domain you start with an application server. This is the default
installation.
• Server group. A server group is a template for creating additional, nearly
identical copies of an application server configuration. (This is the equivalent
of BEA’s cluster.)
• Clones. A copy of the server group, on the same machine or on different
machines. Clones are the equivalent of BEA’s managed servers.
See the IBM WebSphere Application Server documentation for more information:
http://www-3.ibm.com/software/webservers/appserv/doc/v40/ae/infocenter/was
/welcome.html
WebSphere Advanced Server provides a more robust approach to clustering
because it includes a database. In Advanced Server, all servers use the database for
the configuration information. You can use the WebSphere administration console,
a Swing Java application, or the command-line utilities
XMLConfig
and
wscpthen
to
manage the servers.