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Oracle Enterprise Manager Cloud Control 13c Installation Guide || OEM 13.5 Installation Step-By-Step

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:


  1. The redo logfile size should be atleast 1GB

  2. 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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