Install Oracle Enterprise Manager 12c Cloud control ~ Dilli's Oracle/MySQL Linux Blog

Oracle Enterprise Manager is central management platform for testing, deploying, operating, monitoring, diagnosing, and resolving problems on Oracle applications, databases, middleware, hardware and engineered systems. Following is the step by step installation guide for OEM 12c Cloud control on CentOS 6.4.

Environment:

OS: CentOS 6.4
RAM: 16GB
CPU: Intel Core i5
HDD: 200GB

Hardware Requirement:

OEM Size	SMALL	MEDIUM	LARGE
CPU Cores	2	4	8
RAM GB	6	8	16
HDDGB	18	18	18

Package required:

make
binutils
gcc
libaio
glibc-common
libstdc++
libXtst
sysstat
glibc-devel 32bit and 64 bit
glibc

rpm -q make binutils gcc libaio glibc-common libstdc++ libXtst sysstat glibc glibc-devel

Kernel parameters

kernel.shmmax=4294967295

net.ipv4.ip_local_port_range = 11000 65000

User requirement

The Oracle Inventory Group (typically, oinstall)

The Oracle Software Owner User (typically, oracle)

Creating user

/usr/sbin/groupadd oinstall

/usr/sbin/useradd -g oinstall oracle

passwd oracle

Create directory to store OMR software

mkdir -p /ssd/oracle/Middleware

chown -R oracle:oinstall /ssd/oracle/Middleware

Create directory to store software library

mkdir -p /ssd/oracle/swlib

chown -R oracle:oinstall /ssd/oracle/swlib

Extract compressed EM source files.

unzip em12105_linux64_disk1.zip

unzip em12105_linux64_disk2.zip

unzip em12105_linux64_disk3.zip

Oracle Management Repository (OMR) database

Oracle Management Repository (OMR) database should be installed prior to installing Oracle Enterprise Manager 12c Cloud Control. Install Oracle database 11g R2 as OMR database and note down SYSMAN password, hostname, port and Database SID. We need to provide these details on the installation wizard.

In my case I have installed OMR(Oracle Management Repository) database and OMS(Oracle Management Server) on same host so following is the detail of OMR database:

Database Host name: core.localdomain

Port: 1521

Service/SID: omrdb

Sysman password: **********

Verify ORACLE_HOME, ORACLE_SID AND PATH Environment variables.

Unset ORACLE_HOME, ORACLE_SID AND PATH Environment variables.

Execute Installer with ./runInstaller executables

As runInstaller executable file is get executed support details page will be displayed.

Uncheck "I wish to receive security updates via My Oracle Support". Click on Next to continue.

Warning message will be displayed regarding the security issue. Click on Yes to continue.

Select Skip in the case of Software Updates and Click on Next to continue.

Make sure All the Prerequisite are Succeeded. If there is any failure the fix it and re-run. Click on Next to continue.

Select the installation type. Select simple in case of Typical installation. We may select Advance for more options. Click on Next after selecting Simple.

Select Middleware Home Location, Agent Base Directory and Host Name. Click on Next to continue.

Type Administrator password for the Weblogic server. Please note this down for future upgradation and webLogic management. Type OMR database hostname, port, service/sid and SYS password.