
Oracle White Paper—Oracle Portal Enterprise Deployment Guide: 11.1.1.2
domains.
Oracle instance
An Oracle instance contains one or more
system components, such as Oracle Web
Cache, Oracle HTTP Server, or Oracle
Internet Directory. The system components in
an Oracle instance must reside on the same
machine. An Oracle instance directory contains
updatable files, such as configuration files, log
files, and temporary files.
The directory structure of an Oracle instance is
separate from the directory structure of the
Oracle home. It can reside anywhere; it need
not be within the Middleware home directory.
Oracle WebLogic Server domain
A WebLogic Server domain is a logically
related group of Java components. A
WebLogic Server domain includes a special
WebLogic Server instance called the
Administration Server, which is the central
point from which you configure and manage all
resources in the domain. Usually, you configure
a domain to include additional WebLogic
Server instances called Managed Servers. You
deploy Java components, such as Web
applications, EJBs, and Web services, and
other resources to the Managed Servers and
use the Administration Server for configuration
and management purposes only.
Managed Servers in a WebLogic Server domain
can be grouped together into a cluster.
Oracle Fusion Middleware farm Oracle Enterprise Manager Fusion Middleware
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