Specify whether or not you want to enable automated backups for the database. If required, specify the backup job storage area and credentials. Then, click Next.
Note: Before enabling automated backups, ensure that you have sufficient disk space for storing backup files.
If you choose to configure automated backups, then Oracle Enterprise Manager schedules a database backup at the same time every day. By default, the backup job is scheduled to run at 2:00 a.m.
To configure automated backups, you must designate an on-disk storage area for backup files, called the fast recovery area. You can use either the file system or an Automatic Storage Management disk group for the fast recovery area. The disk space required for backup files depends on the storage mechanism that you select. As a general guideline, you must specify a storage location with at least 2 GB of free disk space.
Oracle Enterprise Manager uses Oracle Recovery Manager to perform the backup. To enable Oracle Recovery Manager to connect to the database with the SYSDBA privilege, you must specify the user name and password of an operating system user that is a member of the OSDBA group on UNIX-based platforms, or the Administrators or ORA_DBA groups on Microsoft Windows.
To configure automated backups:
Select Enable Automated Backups.
Select the storage mechanism that you want to use for the fast recovery area:
Select File system to use a file system directory for the fast recovery area, and then specify the fast recovery area path in the Recovery Area Location field.
Select Automatic Storage Management to use an Automatic Storage Management disk group for the fast recovery area.
The default user is the Oracle software owner user that you are using to run Oracle Universal Installer (typically, oracle).
Note: After you have installed the software, you can use Oracle Enterprise Manager Database Control to modify the default backup strategy, change the fast recovery area, or change the backup job user name and password.
Refer to the following sections for guidelines on using the file system or Automatic Storage Management for the fast recovery area.
Apply the following guidelines when deciding whether or not to use the file system for the fast recovery area:
When you create a preconfigured database, you must specify a directory on a file system with at least 2 GB of free disk space.
As a general guideline, the space available for the fast recovery area should be twice the size of the database.
To improve performance and to ensure that a single point of failure does not cause you to lose data, Oracle recommends that you select a separate file system for the fast recovery area. Select a file system that is separate from the operating system, Oracle software, and database files.
Note: For this reason, Oracle recommends that you change the default path selected by Oracle Universal Installer.
Ensure that the operating system user that you are using to run Oracle Universal Installer has write permissions on the directory that you specify.
For Oracle Real Application Clusters (Oracle RAC) installations, the file system that you select must be either a cluster file system or an NFS file system on a certified NAS device.
This is the default choice if you chose to use file system storage for your database files. However, you can choose to use Automatic Storage Management for backup files, even if you did not select that mechanism for the database files.
Oracle Universal Installer provides a default directory path, which is selected as follows:
On UNIX-based systems:
If the ORACLE_BASE environment variable is defined when you start Oracle Universal Installer, then the default directory path is $ORACLE_BASE/recovery_area.
If the ORACLE_BASE environment variable is not defined, but you have write permissions on the parent directory of the Oracle home directory, then the default directory path is oracle_home_parent_dir/recovery_area, where oracle_home_parent_dir is the path to the parent directory of the Oracle home directory that you specify.
In all other cases, the default directory path is oracle_home/recovery_area, where oracle_home is the path to the Oracle home directory that you specify.
On Microsoft Windows systems:
The default directory path is ORACLE_BASE\recovery_area, where ORACLE_BASE is the parent directory of the Oracle home directory where you chose to install the product.
Apply the following guidelines when deciding whether or not to use Automatic Storage Management for the fast recovery area:
When you create a preconfigured database, you must select or create a disk group with sufficient disk space for the database and the backup files. The effective disk space required for the backup files is 2 GB. However, depending on the redundancy level used by the disk group, the required physical disk space is two or three times this value if you select the Normal or High redundancy levels.
As a general guideline, the space available for the fast recovery area should be twice the size of the database.
To improve performance and to ensure that you can recover from a disk failure, Oracle recommends that you use a disk group with Normal or High redundancy.
For Oracle RAC installations, the disk group that you select or create must use storage devices that are shared by all cluster nodes.
This is the default choice if you opted to use either Automatic Storage Management or raw device storage for your database files. However, you can choose to use the file system for backup files even if you did not choose that mechanism for the database files.