Oracle 11gr2 Enterprise Manager Install

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  1. Bored one late evening, I built up a VM in which I installed Oracle Enterprise Manager Grid Control 11g a.
  2. Question: I ma hung up in Oracle Enterprise Manager (OEM) and I want to deinstall and re-install the OEM repository and id needed uninstall all of OEM. What is the procedure for uninstalling OEM and removing the Enterprise Manager software from my client and remove the OEM registry entries? Answer: Oracle has.

Introduction This post is intended to document the process of installing on. Licensing OEM Cloud Control is used as a centralised management point for Oracle Database installations in your environment. You can install this for free and use the base functionalities for free as long as you have an active support subscription with Oracle for any targets (database, hosts, etc.) you want to manage. The list of the base functionalities you can use for free can be reviewed on the. Server setup First, we start with a minimal installation of Oracle Linux 6 with 8GB of RAM and 100GB hard disk.

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A swap space of 8GB is configured. Install Oracle Database OEM Cloud Control will use an Oracle Database to store OEM data, and this database will have to have been installed when you run the OEM Cloud Control installer. The OEM Cloud Control installer will not install the Oracle Database as part of the installation. You may use an existing Oracle Database for this purpose or you can install a separate database specifically for it. From the: Enterprise Manager includes a restricted-use license of the Oracle Database for use only with the Oracle Management Repository or other complementary repositories included with Enterprise Manager (such as, Ops Center, Real User Experience Insight, Load Testing, and Test Manager).

Additional database options or additional servers for disaster recovery require separate licensing. Customers receive one single-instance database with the Cloud Control, or RMAN, repository. To protect the repository with Data Guard, customers need to purchase a license for the standby site. To protect the repository with Oracle Real Application Clusters, customers must license the second node for the database, and both nodes require an Oracle Real Application Clusters license.

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As long as you use a single-instance installation of Oracle Database and do not use this database for anything other than OEM, the database is considered properly licensed. Prep the server for Oracle Database installation Funnily enough, at the time of writing, the highest version of Oracle Database certified to be used as the OEM repository is 11gR2.

12c is not certified. You can check the certifications via by following the steps in the. Now we install the 11gR2 pre-requisite RPM to prepare the server for Oracle Database installation. root@server # yum install oracle-rdbms-server-11gR2-preinstall The preinstall RPM will have added the oracle OS user, as well as the oinstall and dba OS groups. Next, we create the directory structure to hold the Oracle Database files.

root@server # mkdir -p /u01/app/oracle root@server # chown -R oracle:oinstall /u01 Get the Oracle Database installer from, and copy the files into the server. Finally, unzip the installation files. Perform Oracle Database Installation Set up X forwarding, and run the installer as the oracle user. oracle@server $ cd database oracle@server database$./runInstaller Choose to configure a database during installation. Choose a server class installation.

Choose single instance installation. Choose Enterprise Edition, and de-select all options except Partitioning, which is required by OEM Cloud Control 12c. We remove all unnecessary options to avoid future trouble with Oracle Licensing. Proceed with the rest of the installation as usual.

Just accept all the defaults for the database configuration, as we will remove this database later and create a new one. Create repository instance After the installation has completed, run the Database Configuration Assistant (DBCA) and remove the instance configured during the database installation. Then use DBCA to create a new instance from scratch. Using any of the seed databases supplied by Oracle will not do as the database for the OEM repository should not have the SYSMAN schema present. The settings for the new database should match your expected deployment size.

Refer to the for sizing guide. For this article, I will be using the SMALL deployment size, which have the following settings for the repository database: Parameter Minimum Value processes 300 pgaaggregatetarget. 1024 MB sgatarget. 2 GB redo log file size 300 MB sharedpoolsize 600 MB.memorytarget of 3 GB can be used in place of sgatarget and pgaaggregatetarget We can now begin creating the database using DBCA. Choose to create a database.

Choose to create a custom database. Uncheck the Configure Enterprise Manager and Enable automatic maintenance tasks checkboxes.

Remove all the optional database components Check the Use Automatic Memory Management checkbox and make sure the memory size is more than 3 GB. Set processes to 300.

Change all three redo log file sizes to 300 MB. Complete the database creation. Install Oracle Enterprise Manager Cloud Control 12c Release 3 With the repository database ready, it is time to install the OEM proper.

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Review package requirements. First, review the operating system package requirements from the. For my installation, since the oracle-rdbms-server-11gR2-preinstall package was already installed, the only missing package is the glibc-devel 32-bit package.

So, that will now be installed using yum. root@server # yum install glibc-devel.i686 Next, get the installer from.

Unzip the files, and run the installer as the oracle user. oracle@server oem$./runInstaller Configure the email and software updates if you want to, and click Next. The pre-requisite checks will be performed, and in my case, all the tests were successful. Choose to create a new Advanced Enterprise Manager System.

Next, specify the location to install the Middleware and Agent components of OEM Cloud Control. I chose to use the ORACLEBASE of the database installation as the base directory, with directories for the Middleware and Agent components located in this base. The next page we will be able to choose which management plugins we wish to install. For my install, I will only use OEM Cloud Control to manage Oracle Databases. Therefore, I will not install any additional plugins. Next, provide passwords WebLogic and Node Manager, and specify installation directory for OMS. Again, I used the same directory structure as the Oracle Database installation.

Step 8: Provide the details of the repository database. Here we insert the details of the repository database which we have installed earlier, and select the corresponding deployment size. When I clicked Next, an error popped out saying that a CBO statistics collection job must be disabled. The installer offered to fix this automatically, and I accept. After clicking Yes, the installer presented me with several warnings regarding database parameter mis-matches that will affect the performance of the OEM Cloud Control. I can choose to fix them now, or proceed with the installation and fix them later.

The first warning is about the memorytarget parameter. However, checking the parameter shows that the parameter is set up correctly for the SMALL deployment size. SQL show parameter memorytarget NAME TYPE VALUE - - - memorytarget big integer 3200M The second warning is for the sessioncachedcursors parameter. Change this to the recommended value. This parameter is not changeable online, so a database restart is required. SQL show parameter sessioncachedcursors NAME TYPE VALUE - - - sessioncachedcursors integer 50 SQL alter system set sessioncachedcursors=500 scope=SPFILE; System altered. SQL shutdown immediate Database closed.

Database dismounted. ORACLE instance shut down. SQL startup ORACLE instance started. Total System Global Area bytes Fixed Size 2257840 bytes Variable Size bytes Database Buffers bytes Redo Buffers 16302080 bytes Database mounted. Database opened. SQL show parameter sessioncachedcursors; NAME TYPE VALUE - - - sessioncachedcursors integer 500 The third and final change is to the sharedpoolsize parameter. SQL show parameter sharedpoolsize NAME TYPE VALUE - - - sharedpoolsize big integer 0 SQL alter system set sharedpoolsize=600M scope=both; System altered.

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SQL show parameter sharedpoolsize NAME TYPE VALUE - - - sharedpoolsize big integer 608M Now, we return to the installer and click Cancel and re-run the database check. Now, only one warning appears, which I guess is an installer glitch in reading the memory parameter. Click Ok to resume with the installation. Step 9: On this page of the installer, we specify the passwords for SYSMAN and registration.

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This SYSMAN password will be used in the initial login to the OEM Cloud Control. You can change the default locations of the tablespaces to be created, and also the location of the software library to be used by OEM Cloud Control. Step 10: Review the port assignments for OEM Cloud Control, or change them if you wish. Step 11: Finally, we get to the review page. Click Install to begin OEM Cloud Control installation. The installer will prompt for execution of root scripts. Run the script.

root@server # /u01/app/oracle/middleware/oms/allroot.sh Starting to execute allroot.sh. Starting to execute /u01/app/oracle/middleware/oms/root.sh. Running Oracle 11g root.sh script. The following environment variables are set as: ORACLEOWNER= oracle ORACLEHOME= /u01/app/oracle/middleware/oms Enter the full pathname of the local bin directory: /usr/local/bin: The file 'dbhome' already exists in /usr/local/bin. Overwrite it? (y/n) n: The file 'oraenv' already exists in /usr/local/bin. Overwrite it?

(y/n) n: The file 'coraenv' already exists in /usr/local/bin. Overwrite it? (y/n) n: Entries will be added to the /etc/oratab file as needed by Database Configuration Assistant when a database is created Finished running generic part of root.sh script. Now product-specific root actions will be performed. /etc exist Creating /etc/oragchomelist file.

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/u01/app/oracle/middleware/oms Finished execution of /u01/app/oracle/middleware/oms/root.sh. Starting to execute /u01/app/oracle/agent/core/12.1.0.3.0/root.sh. Finished product-specific root actions.

/etc exist Finished execution of /u01/app/oracle/agent/core/12.1.0.3.0/root.sh. The installation is now completed. Configure firewall for OEM Cloud Control Now we we will need to configure the firewall to enable OEM Cloud Control to work properly.

Of course, you can disable the firewall instead should you choose to. Check the Port List First, check the list of ports used by your installation. This list can be located inside your middleware installation directory /oms/install/portlist.ini. root@server # cat /u01/app/oracle/middleware/oms/install/portlist.ini Enterprise Manager Upload Http Port=4889 Enterprise Manager Upload Http SSL Port=4903 Enterprise Manager Central Console Http SSL Port=7802 Node Manager Http SSL Port=7403 Managed Server Http Port=7202 Enterprise Manager Central Console Http Port=7788 Oracle Management Agent Port=3872 Admin Server Http SSL Port=7102 Managed Server Http SSL Port=7301 Configure Firewall Next, configure the firewall to allow incoming connections from all the ports listed above.