Installation choices


If Oracle DBA want a preconfigured database installed, Oracle DBA can select one of the following database types, optimized according to usage:

General Purpose

Transaction Processing

Data Warehouse

If Oracle DBA want to create an custom database where Oracle DBA configure your own database structure, you can select an advanced install.

What are your Database Configuration Options? These include your Global Database Name, Oracle System Identifier (SID), and whether to install the example schemas. The Global Database Name is the full name of the database which uniquely identifies it from any other database. The global database name is of the form database_name.database_domain as in sales.us.acme.com. The database name portion sales is a simple name you call your database. The database domain portion us.acme.com specifies the database domain in which the database is located. Together database name and domain make up the Global Database Name. Oracle recommends that you install the example schemas so that you can run many of the examples in the documentation.

You will also be prompted to enter your database schema password for the pre-loaded schemas such as SYS and SYSTEM, which enable you to manage and administer the database.

What kind of storage mechanism do you want your database to use? A database comprises several files which stores the Oracle DBA data, database meta data, as well as information required to recover from failures. As an administrator, you decide what kind of storage sub-system to locate these files on.You can select from the following options:

File System—Creates database files that are managed by your operating system’s file system. You can specify the directory path where database files are to be stored. Oracle can create and manage the actual files.

Automatic Storage Management—This is new functionality that enables you to define a pool of storage (called a disk group) in which Oracle automatically manages database file placement and naming. For environments with a large number of disks, this option simplifies database administration and maximizes performance. Disk mirroring and striping are done automatically. Automatic Storage Management requires a separate instance to configure and manage disks groups. Oracle DBA are guided through the creation and launching of an Automatic Storage Management instance and its components by the database installation process. For more information, see Oracle Database Administrator's Guide.

Raw Devices—Enables Oracle DBA to manage your storage devices outside of the operating system file system by providing Oracle with unformatted physical disk space called raw devices. This method is primarily used in Oracle Real Application Clusters environments. If Oracle DBA selected this option, Oracle DBA must ensure that the raw devices have been created using an operating system command, and that they are not being used for any other purposes or by other Oracle databases. If you are not certain of which option to use, go with the default selection of File System.

What are your Database Management Options? Here you specify whether to manage your database centrally or locally. The central deployment mode enables you to manage multiple targets, such as databases, and application servers from a single console. The local deployment mode on the other hand can manage only a single database instance. The central deployment mode requires a special agent to be installed on the database machine. If no such agent is found, this option is disabled.

If you are setting up a single database for the first time, it is recommended that you deploy Enterprise Manager locally. You can later install additional databases and migrate your deployment mode to central management. At the end of the interview a summary page displays the options that you have chosen, space requirements, and the components that will be installed. If Oracle DBA have chosen to install a database, that will be done immediately after the software installation is complete.

Sufficient paging space is available.

Appropriate operating system service packs or patches are installed.

Appropriate files system format is being used.

The installer automatically sets any operating system environment variables that the Oracle database server requires for its operation. The Oracle Universal Installer guides Oracle DBA through an interview phase that asks Oracle DBA to specify your choices for installation and database creation. The exact sequence of pages depends on your platform. All platforms include the following choices:

What database product do Oracle DBA want to install?

Oracle DBA can install one of the following:

Oracle Enterprise Edition—Oracle’s most full featured database product providing data management for high-end applications.
Oracle Standard Edition—A less-expensive and somewhat scaled down version of the Oracle database suitable for workgroup or department level applications
Custom Install—Allows Oracle DBA to customize the Enterprise Edition by selecting products to install. Do this if Oracle DBA want to add a component to your database that would not normally be installed or prevent certain components from being installed.


STEP 2 - Next Topics
This discusses how to install the Oracle software and database. It also describes how to configure additional databases, and how to upgrade and older version of a database to the current version.Learn Oracle DBA Step 2 by clicking links below:
Checking PrerequisitesOracle DBA
Installation choicesOracle DBA
Installing Your Oracle Software and Database
Using DBCA to Create a Database
Using DBCA to Delete a Database
Using DBCA to Configure Database Options
Upgrading a Database

More Tutorials on Oracle dba ...

Source : Oracle Documentation

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