In this post I will display some screenshots and basics setups to be able to create an Oracle Enterprise Manager Cloud (OEM) Control 12c Release 1. I won’t go into the details in the installation because the purpose of this post is simply to show the installation by screenshots. If you want more details I recommend you go through both Oracle Database and Oracle Enterprise Cloud documentation.
The first step in getting an OEM 12c1 is to have a database that it will work as the repository of this application. In this example I have chosen a database 12c in the release 1. Therefore in this example I am going to create a database named OEM12c using the Listener utility running in the port 1521, created previously. So as soon as you start the dbca the installation will start as it follows:
So now we have the database:
However, at this point even though you have the database you still have to configure your database to attend some requirements to proceed with the installation of the OEM.
These parameters are described below:
ALTER SYSTEM SET processes=300 SCOPE=SPFILE; ALTER SYSTEM SET session_cached_cursors=200 SCOPE=SPFILE; ALTER SYSTEM SET sga_target=1500m SCOPE=SPFILE; ALTER SYSTEM SET shared_pool_size=600M SCOPE=SPFILE; ALTER SYSTEM SET pga_aggregate_target=1G SCOPE=SPFILE; ALTER SYSTEM SET job_queue_processes=20 SCOPE=SPFILE; ALTER SYSTEM SET db_securefile=PERMITTED SCOPE=SPFILE;
Perform a “shutdown immediate” of your database, followed up by a “startup” for the database which reflects the changes in the parameters. Afterwards proceed with the creation of the file system that will be the agent and the home of the OMS as shown below
su - mkdir /oms12c mkdir /agentoms12c chown oracle:dba /oms12c chown oracle:dba /agentoms12c
Once you have created your file system, you can go to the location where the media of the OEM is and execute the runInstaller utility to start the installation of the application:
After the installation you have your OEM ready to be used 😀
*The views expressed here are my own and do not represent those of my employer.*
Hello, I’m Bruno — a dual citizen of Brazil and Sweden. I bring a global perspective shaped by experiences in both South America and Europe, with a strong focus on collaboration and innovation across cultures. I am a Computer Scientist, PhD Candidate in Information and Communication Technologies, focusing on Data Science and Artificial Intelligence, and hold dual Master’s degrees in Data Science and Cybersecurity. With over fifteen years of international experience spanning Brazil, Hungary, and Sweden, I have collaborated with global organizations such as IBM, Playtech, and Oracle, as well as contributed remotely to projects across multiple regions. My professional interests include Databases, Cybersecurity, Cloud Computing, Data Science, Data Engineering, Big Data, Artificial Intelligence, Programming, and Software Engineering, all driven by a deep passion for transforming data into strategic business value.