Learn how to install and configure OEM 13.5 step-by-step
Oracle Enterprise Manager Cloud Control 13c (OEM 13.5) is a comprehensive monitoring and management solution for Oracle environments. This step-by-step guide will walk you through installing OEM 13.5, ensuring a smooth setup and configuration.
Prerequisites
Before starting the installation, ensure you have the following prerequisites:
Oracle Database: Ensure you have installed an Oracle Database 12c, 19c or later. This will serve as the repository database.
Operating System: Oracle Linux 7.x or later, Red Hat Enterprise Linux 7.x or later, or a compatible OS.
Hardware: Minimum of 10GB RAM Recommended 32GB, 100GB free disk space, a 4-core CPU or more and 14GB temporary space(/tmp).
Step 1: Prepare the Environment
1. Update the OS Packages:
sudo yum update -y
2. Install Required Packages:
yum install binutils-2.30-49.0.2.el8
yum install gcc-8.2.1-3.5.0.1.el8
yum install gcc-c++-8.2.1-3.5.0.1.el8
yum install glibc-2.28-42.0.1.el8.x86_64
yum install glibc-devel-2.28-42.0.1.el8.x86_64
yum install glibc-devel-2.17-55-i686
yum install libaio-0.3.110-12.el8.x86_64
yum install libaio-devel-0.3.110-12.el8.x86_64
yum install libgcc-8.2.1-3.5.0.1.el8.x86_64
yum install libstdc++-8.2.1-3.5.0.1.el8.x86_64
yum install libstdc++-devel-8.2.1-3.5.0.1.el8.x86_64
yum install libnsl.x86_64
yum install sysstat-11.7.3-2.el8
yum install motif-2.3.4-16.el8.x86_64
yum install motif-devel-2.3.4-16.el8.x86_64
yum install redhat-lsb-4.1-47.0.1.el8.x86_64
yum install redhat-lsb-core-4.1-47.0.1.el8.x86_64
yum install openssl-1.1.1-8.0.1.el8
yum install make-4.2.1-9.el8
3. Set Kernel Parameters:
Edit /etc/sysctl.conf to include:
fs.file-max=6815744
kernel.sem=250 32000 100 128
kernel.shmall=2097152
kernel.shmmax=2147483648
kernel.shmmni=4096
net.ipv4.ip_local_port_range=9000 65500
net.core.rmem_default=262144
net.core.rmem_max=4194304
net.core.wmem_default=262144
net.core.wmem_max=1048576
Apply the changes:
sudo sysctl -p
4. Set User Limits:
Edit /etc/security/limits.conf to include:
oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
5. Create Required Directories for OEM:
sudo mkdir -p /u02/app/oracle/middleware
sudo mkdir -p /u02/app/oracle/agent
sudo chown -R oracle:oinstall /u02/app/oracle
sudo chmod -R 775 /u02/app/oracle
Step 2: Install Oracle Database Software and Create Repository Database:
1. Download Oracle Database:
Download the latest Oracle Database software from the Oracle website:
2. Install Oracle Database and create database using dbca:
Follow the standard Oracle Database installation procedures, ensuring you create a database that will act as the repository.
For Oracle Database software installation follow link below:
Make sure below points taken care during database creation:
The redo logfile size should be atleast 1GB
Set below DB parameters:
alter system set "_allow_insert_with_update_check"=true scope=both;
alter system set session_cached_cursors=500 scope=spfile;
alter system reset "_optimizer_nlj_hj_adaptive_join" scope=both sid='*';
alter system reset "_optimizer_strans_adaptive_pruning" scope=both sid='*';
alter system reset "_px_adaptive_dist_method" scope=both sid='*';
alter system reset "_sql_plan_directive_mgmt_control" scope=both sid='*';
alter system reset "_optimizer_dsdir_usage_control" scope=both sid='*';
alter system reset "_optimizer_use_feedback" scope=both sid='*';
alter system reset "_optimizer_gather_feedback" scope=both sid='*';
alter system reset "_optimizer_performance_feedback" scope=both sid='*';
Step 3: Install Oracle Enterprise Manager Cloud Control 13c
1. Download OEM 13.5:
Download the Oracle Enterprise Manager Cloud Control 13c software from the
Oracle Enterprise Manager Downloads
Oracle Enterprise Manager Cloud Control 13c Release 5 (13.5.0.0.0) for Linux x86-64
em13500_linux64.bin
em13500_linux64-2.zip
em13500_linux64-3.zip
em13500_linux64-4.zip
em13500_linux64-5.zip
Note:
Download all the files including .bin in same directory. No need to unzip the downloaded software. As the install user who will be installing the product, set the execute permission for the .bin file.
Example: chmod +x em13500_linux64.bin
2. Run the Installer:
<software_stage_location> ./em13500_linux64.bin
Follow the prompts, specifying the Oracle home directory and middleware directory created earlier.
3. Configure the Repository:
During the installation, you will be prompted to connect to the Oracle Database that will serve as the repository. Provide the necessary details and complete the configuration.
Step 4: Post-Installation Configuration
1. Start the Oracle Management Service (OMS):
/u02/app/oracle/middleware/bin/emctl start oms
For status
/u02/app/oracle/middleware/bin/emctl status oms -details
2. Access the OEM Console:
Open a web browser and navigate to `https://<hostname>:7802/em`. Log in using the credentials created during the installation process.
3. Install Agents:
From the OEM console, navigate to the "Setup" menu and follow the instructions to deploy agents to the target systems you wish to monitor.
Conclusion:
Congratulations! You have successfully installed Oracle Enterprise Manager Cloud Control 13c (OEM 13.5). You can now leverage its powerful features to monitor, manage, and optimize your Oracle environment. For detailed administration and advanced configurations, refer to the official Oracle documentation.
For a detailed visual walkthrough, please refer to our comprehensive video guide:
Oracle Enterprise Manager Cloud Control 13c Installation Guide:
Tutorial:
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