Installing Oracle OEM 12c (simple Edition)

1. Create an Oracle database (if any ).
2. Create an OEM user and create a directory
Mkidr-p/oracle/oem_12c
Chmod-R oem: oisntall/oracle/oem_12c

3. modify Database Parameters
Su-oracle
Sqlplus/AS SYSDBA

Alter system set processses = 300 SCOPE = SPFILE;
Alter system set session_cached_cursors = 200 SCOPE = SPFILE;
Alter system set sga_target = 2g scope = SPFILE;
Alter system set shared_pool_size = 600 m scope = SPFILE;
Alter system set pga_aggregate_target = 1g scope = SPFILE;
Alter system set job_queue_processes = 20 SCOPE = SPFILE;

-- May be required if using older versions of DB.
-- Alter system set log_buffer = 10485760 SCOPE = SPFILE;
-- Alter system set open_cursors = 300 SCOPE = SPFILE;

-- Restart the instance.
SHUTDOWN IMMEDIATE
STARTUP

4. If the oracle database has an OEM installed, run the following command to delete it:
Emca-deconfig dbcontrol db-repos drop

5. decompress the zip Installation File, set the DISPLAY Environment command, and run the following command to start image installation.

./RunInstaller ORACLE_HOSTNAME = dtydb0

6. Install the SDK on the Gui until the installation is complete. As prompted, the root user needs to run the allroot. sh command.

7. log on through the website and enter the password of sysman.
Https: // 10.4.124.239: 7799/em

The installation process is slow. If the process succeeds, it will take more than an hour;

For detailed installation documents, see oracle official documentation

• Oracle Enterprise Manager Cloud Control Basic Installation Guide 12c Release 1 (12.1.0.1)
• How to Install Enterprise Manager Cloud Control 12.1.0.1 (12c) (Doc ID 1359176.1)