The illustration em_dbcontrol_dir_structure.gif consists of a diagram that shows a folder icon that represents the Oracle home directory created when you install an Oracle Database 10g database. Specifically, the illustrations shows the following directories inside the Oracle home:
bin directory, which contains the
emca commands discussed later in this section
sysman directory, which contains the Enterprise Manager administration files
hostname_sid directory, which contains its own
sysman directory. This
sysman directory contains the Enterprise Manager configuration, logging, and administration files specific to the database identified in the
hostname_sid directory name.
oc4j directory, which contains a j2ee directory, which contains the files required to deploy the Database Control application for each database instance you create in this Oracle home.