Installing the Oracle Database Software

On the Select Database edition page, you can select to install either the Enterprise Edition or Standard Edition. Click Next to continue.

In the Specify Installation Location window, provide a value for ORACLE_BASE if you have not already done so. The default ORACLE_BASE location is /u01/app/oracle, provided the RDBMS software is being installed by the oracle account. The Software Location section of the window enables you to specify a value for the ORACLE_HOME location. The default

ORACLE_HOMElocation is /u01/app/oracle/product/12.1.0/dbhome_1. Accept the suggested path or enter your own location. After entering the information, review it for accuracy, and click Next to continue. In the “Privileged operating system groups” window, select the operating system group that will act as the OSDBA group. and the group that will act as the OSOPER group. In addition you can assign operating system groups to the database backup and recovery group, the Data Guard administrative group, and the encryption key management administrative group. Click Next to continue.

The “Perform Prerequisite Checks” window verifies the operating system requirements that must be met for the installation to be successful. These requirements include:

• Certified operating system check

• Kernel parameters as required by the Oracle Database software • Required operating system packages and correct revisions

After each successful check, the Status for that check will indicate Succeeded. Any tests that fail are also reported here. If any tests fail, click the “Fix & Check Again” button. The Installer will generate fix-up scripts to correct the system deficiencies if possible. Execute the scripts as directed by the Installer. The tests will be run again after completing the script executions. When all tests have succeeded, click Next to continue. In the Summary window, review the Global settings and click Finish.

Installing the Oracle Database Software

At the end of the installation, the OUI will display another window, prompting you to run the root.shscripts on the nodes you chose for the installation. Follow the instructions to run the scripts. When finished, click the OK button to close the Execute Configuration Scripts window and return to the Finish screen. Click Close to complete the installation and close the OUI.

Installing the Oracle Database Software

To create the cluster database, change directory to $ORACLE_HOME/bin on the installing node and execute the database configuration assistant (DBCA) utility as follows:

$ cd /u01/app/oracle/product/12.1.0/dbhome_1/bin $ ./dbca

The Database Operation window appears first. You must select the database operation to perform. Select Create Database and then click Next. The Creation Mode window appears. You can choose to create a database using the default configuration or you can choose Advanced Mode. Select Advanced Mode and click Next to continue.

Creating the Cluster Database

$ cd /u01/app/oracle/product/12.1.0/dbhome_1/bin $ ./dbca

The Database Templates window appears next. The Database Type pull-down menu allows you to choose to create an Oracle RAC database, an Oracle RAC One Node database, or a single instance database. The Configuration Type pull-down menu allows you to choose between Policy Managed and Administration Managed database configurations.

Administrator-managed RAC databases specify a list of cluster nodes where RAC instances

will run. Services may also be specified and associated with preferred and alternative nodes. There is an explicit association between database services, instances, and cluster nodes.

Policy-based management breaks the explicit association between services, instances, and

cluster nodes. Policy-based management employs server pools, which are logical divisions of a cluster that are dynamically allocated based on relative importance. Database services are associated with server pools, and RAC instances are automatically started to satisfy the service to server pool associations. You specify in which server pool the database resource will run and the number of instances needed (cardinality). Oracle Clusterware is responsible for placing the database resource on a server. Server pools are logical divisions of a cluster into pools of servers that are allocated to host databases or other applications. Server pools are managed using crsctl and srvctl commands. Names must be unique within the resources defined for the cluster.

Database Type Selection

The DBCA tool provides several predefined database types to choose from, depending on your needs. The templates include:

• General Purpose or Transaction Processing • Custom Database

• Data Warehouse

In the example in the slide, the “General Purpose or Transaction Processing” option is chosen. Click Next to continue.

In the Database Identification window, you must choose the global database name. The global database name can be up to 30 characters in length and must begin with an alphabetical character. The global database name is of the form

database_name.database_domain. In addition, you can choose to create a clustered

container database by selecting the Create as a Container Database checkbox. You can choose to create an empty container database or create it with one or more pluggable databases. If you elect to create a pluggable database, you will be required to provide a unique service name. When you have finished, click Next to continue.

On the Database Placement page, you can choose to create a new server pool name for your database or you can elect to use an existing pool to place the database. If you create a new server pool, you will be required to set the cardinality. Click Next to continue.

Database Identification

The Management Options window is displayed. For small cluster environments, you may choose to manage your cluster with Enterprise Manager Database Express To do this, select the “Configure Enterprise Manager (EM) database Express” check box. You can also elect to run CVU checks periodically.

If you have Grid Control installed somewhere on your network, you can select the “Register with Enterprise Manager (EM) Cloud Control” option. EM Cloud Control can simplify database management in large, enterprise deployments. If you select Enterprise Manager, you must provide the OMS host name and the OMS port number. You must also provide login

credentials for the EM administrative user.

If you want to use Grid Control to manage your database, but have not yet installed and configured a Grid Control server, do not click either of the management methods. When you have made your choices, click Next to continue.

In document Oracle 12c RAC Administration D81250GC10_sg (Page 66-74)