Etapa 1: Valoración del conocimiento y asignación de responsabilidades

file, added after the localhost line while installing the loopback adapter on other Windows operating systems.

2.7 Individual Component Requirements

This section contains these topics:

■ Configuring Disk Storage for Oracle Data Files and Recovery Files ■ Creating Directories for Oracle Data Files or Recovery Files

Individual Component Requirements

■ Oracle Database Security Strong Authentication Requirements ■ Oracle Enterprise Manager Requirements

■ Oracle-Managed Files Requirements

■ Oracle Real Application Clusters (Oracle RAC) ■ Oracle Volume Shadow Copy Service (VSS) Writer ■ Preinstallation Requirement for Oracle Database Vault

2.7.1 Configuring Disk Storage for Oracle Data Files and Recovery Files

This section describes the storage options for storing Oracle data files and, optionally, Oracle database recovery files. After you choose the storage method to use for each file type, use the following sections to configure the required storage:

■ Choosing a Storage Option for Oracle Data Files

■ Choosing a Storage Option for Oracle Database Recovery Files ■ Configuring Disk Storage

2.7.1.1 Choosing a Storage Option for Oracle Data Files

If you want to create a database during the installation, you must choose one of the following storage options for the data files:

■ File system

■ Oracle Automatic Storage Management

The database files must be placed on Oracle ASM if using Oracle ACFS; otherwise they can be placed on NTFS.

2.7.1.2 Choosing a Storage Option for Oracle Database Recovery Files

If you want to enable automated backups during the installation, you must choose one of the following storage options for recovery files (the fast recovery area):

■ File system

■ Oracle Automatic Storage Management See Also:

■ Chapter 2, "Oracle Application Express Installation Requirements" and "Recommended Pre-installation Tasks" in Oracle Application Express Installation Guide

■ "Pre-installation Requirements" section in Oracle Configuration Manager Installation and Administration Guide and Oracle

Configuration Manager Prerequisites for preinstallation requirements for Oracle Configuration Manager

■ Appendix A, "Country Codes", in Oracle Configuration Manager Installation and Administration Guide for a list of valid country codes that can be used while installing Oracle Configuration Manager.

Note: You do not have to use the same storage option for each file type.

Individual Component Requirements

The storage option that you choose for recovery files can be the same as or different to the option you choose for the data files. The recovery files must be placed on Oracle ASM if using Oracle ACFS; otherwise they can be placed on NTFS.

2.7.1.3 Configuring Disk Storage

For more information about these options, see the "Database Storage Options" section on page 1-12. For information about how to configure disk storage before you start the installation, see one of the following sections depending on your choice:

■ To use a file system for database or recovery file storage, see the "Creating Directories for Oracle Data Files or Recovery Files" section on page 2-17. ■ To use Oracle Automatic Storage Management for database or recovery file

storage, see the "Preparing Disks for an Oracle Automatic Storage Management Installation" section on page 3-5.

2.7.2 Creating Directories for Oracle Data Files or Recovery Files

If you decide to place the Oracle database or recovery files on a file system, use the following guidelines when deciding where to place them:

■ Guidelines for Placing Oracle Data Files on a File System ■ Guidelines for Placing Oracle Recovery Files on a File System ■ Creating Required Directories

2.7.2.1 Guidelines for Placing Oracle Data Files on a File System

■ You can choose either a single file system or multiple file systems to store the data files:

– If you want to use a single file system, then choose a file system on a physical device that is dedicated to the database.

For best performance and reliability, choose a redundant array of independent disks (RAID) device or a logical volume on multiple physical devices and implement the stripe and mirror everything (SAME) methodology.

– If you want to use multiple file systems, then choose file systems on separate physical devices that are dedicated to the database.

Select this method to distribute physical I/O and create separate control files on different devices for increased reliability. You must choose the Advanced database creation option during the installation to implement this method. ■ If you intend to create a preconfigured database during the installation, then the

file system (or file systems) that you choose must have at least 950 MB of free disk space.

For production databases, you must estimate the disk space requirement depending how you plan to use database.

■ For optimum performance, the file systems that you choose should be on physical devices that are used only by the database.

■ The default location suggested by Oracle Universal Installer for the database file directory is a subdirectory of the Oracle base directory. However, this default location is not recommended for production databases.

Individual Component Requirements

2.7.2.2 Guidelines for Placing Oracle Recovery Files on a File System

If you place the Oracle recovery files on a file system, use the following guidelines when deciding where to place them:

■ To prevent disk failure from making both the data files and the recovery files unavailable, place the recovery files in a file system on a different physical disk from the data files.

■ The file system that you choose should have at least 2 GB of free disk space. The disk space requirement is the default disk quota configured for the fast recovery area (specified by the DB_RECOVERY_FILE_DEST_SIZE initialization parameter).

If you choose the Advanced database configuration option, you can specify a different disk quota value. After you create the database, you can also use Oracle Enterprise Manager Grid Control or Database Control to specify a different value.

■ The default location suggested by Oracle Universal Installer for the database file directory is a subdirectory of the Oracle base directory. However, this default location is not recommended for production databases.

2.7.2.3 Creating Required Directories

To create directories for the Oracle database or recovery files on separate file systems from the Oracle base directory, follow these steps:

1. Use Windows Explorer to determine the free disk space on the file system.