Database Reference
In-Depth Information
Chapter 2
Installation and Agent Deployment
by Gokhan Atil
In this chapter, you will learn how to create a repository database and install Oracle Enterprise Manager Cloud
Control 12c. If you have any experience with installing Enterprise Manager Grid Control (the ancestor of Cloud
Control), you'll see that EM12c comes with a smarter installation wizard, so the installation is much easier.
EM12c consists of three components: Oracle Management Service (OMS), Oracle Management Agents
(management agents), and Oracle Management Repository (management repository).
This chapter's demonstration of the installation and agent deployment uses three servers:
cloudcontrol12.testdomain.com
: Oracle Management Service will be installed to this
server.
repositorydb.testdomain.com
: This database server will host the management
repository.
target.testdomain.com
: Management agents will be deployed to this target server.
All of these servers are running Oracle Linux 5.8 (64-bit) as well as the GNOME desktop environment and the
X Window System.
Although you can install both the management repository and OMS on same server, we prefer to install the
management repository on a separate server. If you're planning to install both on the same server, you should
accommodate the requirements for both installations.
We recommend that you use a Domain Name System (DNS) server to solve the hostnames of the servers. If you
do not have a DNS server, you need to enter the hostnames and corresponding IPs of all targets into
/etc/hosts
on
the Oracle Management Server. You also need to enter the hostname/IP address of OMS into the
/etc/hosts
file on
all target servers (to which you'll deploy the management agent).
It's also important to use fully qualified hostnames. A fully qualified domain name (FQDN) is a complete domain
name for a server. It contains both a hostname and a domain name to specify its exact location in the DNS hierarchy.
For example,
cloudcontrol12.testdomain.com
is a fully qualified hostname. At least ensure that your Oracle
Management Server has a fully qualified hostname.
Oracle Enterprise Manager Cloud Control 12c can fetch the latest patch information from My Oracle Support
for your servers and can create service requests for incidents. Therefore, we recommend that you enable Oracle
Management Service to reach the My Oracle Support web site. If you don't want to allow your servers to directly
access the Internet, you can set up a proxy server to make the My Oracle Support web site accessible to OMS.
