Note: Backups of logical standby databases are not usable at the primary database. Backups of standby control files and nonstandby control files are interchangeable. For example, you can restore a standby control file on a primary database and a primary control file on a physical standby database. This interchangeability means that you can offload control file backups to one database in a Data Guard environment. RMAN automatically updates the filenames for database files during restore and recovery at the databases. 11.1.2 Association of Backups in a Data Guard Environment The recovery catalog tracks the files in the Data Guard environment by associating every database file or backup file with a DB_UNIQUE_NAME. The database that creates a file is associated with the file.

Business Work Schedule. This chapter describes backup strategies using Oracle Recovery Manager (RMAN) with Data Guard and standby databases. RMAN can perform backups with minimal effect on the primary database and quickly recover from the loss of individual datafiles, or the entire database. Extract Archived Log Files from RMAN. RMAN archivelog backup in Oracle. How to change the path of temp file,redo log file when restore an rman backup on. Recover Oracle using an Offline Backup with RMAN. Before you can restore your database using RMAN, the following needs to be properly in place (this assumes a full system loss): * The operating system must be installed. * The Oracle software must be installed. * The RMAN backup files must be available.

For example, if RMAN backs up the database with the unique name of standby1, then standby1 is associated with this backup. A backup remains associated with the database that created it unless you use the CHANGE. RESET DB_UNIQUE_NAME to associate the backup with a different database.

This tutorial provides an introduction on how to restore an Oracle database from the RMAN. Download Dhcp Installation And Configuration In Windows Server 2008 Pdf. CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/data/rman-backup.

11.1.3 Accessibility of Backups in a Data Guard Environment The accessibility of a backup is different from its association. In a Data Guard environment, the recovery catalog considers disk backups as accessible only to the database with which it is associated, whereas tape backups created on one database are accessible to all databases.

If a backup file is not associated with any database, then the row describing it in the recovery catalog view shows null for the SITE_KEY column. By default, RMAN associates files whose SITE_KEY is null with the target database. RMAN commands such as BACKUP, RESTORE, and CROSSCHECK work on any accessible backup.

For example, for a RECOVER COPY operation, RMAN considers only image copies that are associated with the database as eligible to be recovered. RMAN considers the incremental backups on disk and tape as eligible to recover the image copies. In a database recovery, RMAN considers only the disk backups associated with the database and all files on tape as eligible to be restored.

To illustrate the differences in backup accessibility, assume that databases prod and standby1 reside on different hosts. RMAN backs up datafile 1 on prod to /prmhost/disk1/df1.dbf on the production host and also to tape. RMAN backs up datafile 1 on standby1 to /sbyhost/disk2/df1.dbf on the standby host and also to tape. If RMAN is connected to database prod, then you cannot use RMAN commands to perform operations with the /sbyhost/disk2/df1.dbf backup located on the standby host. However, RMAN does consider the tape backup made on standby1 as eligible to be restored. 11.2 About RMAN Configuration in a Data Guard Environment In a Data Guard configuration, the process of backing up control files, datafiles, and archived logs can be offloaded to the standby system, thereby minimizing the effect of backups on the production system. These backups can be used to recover the primary or standby database.

RMAN uses the DB_UNIQUE_NAME initialization parameter to distinguish one database site from another database site. Thus, it is critical that the uniqueness of DB_UNIQUE_NAME be maintained in a Data Guard configuration. Only the primary database must be explicitly registered using the RMAN REGISTER DATABASE command. You do this after connecting RMAN to the recovery catalog and primary database as target. Bluesoleil 3.2.2.8 Serial Key.