How do I backup my RMAN catalog database?
How do I backup my RMAN catalog database?
Back up the database onto two separate media (for example, disk and tape). Run BACKUP DATABASE PLUS ARCHIVELOG at regular intervals, to a media manager if available, or just to disk. Do not use another recovery catalog as the repository for the backups. Configure the control file autobackup feature to ON .
What is the difference between using recovery catalog and control file?
Since the recovery catalog is capable of holding backup-related metadata longer than the target databases control file, this essentially depicts that the storage should be persistent compared to the control file. In Oracle, the persistent storage lies only in the form of datafiles managed via tablespaces.
What is RMAN recovery catalog?
A recovery catalog is a database schema used by RMAN to store metadata about one or more Oracle databases. Typically, you store the catalog in a dedicated database. A recovery catalog creates redundancy for the RMAN repository stored in the control file of each target database.
What is catalog backup piece?
If you specify a list of backup pieces, then RMAN attempts to catalog all pieces in the given list even if some of them fail. Cataloging a backup piece creates a new row in V$BACKUP_PIECE . A backup set is only usable when all backup pieces are cataloged because otherwise it is only in a partially available state.
What RMAN command must you use before you can back up a database using the recovery catalog?
When backing up the recovery catalog database, you can use RMAN to make the backups. As illustrated in Figure 10-1, you should start RMAN with the NOCATALOG option so that the repository for the recovery catalog is the control file in the catalog database.
Which three capabilities require the use of the RMAN recovery catalog?
Why use a recovery catalog?
- Datafile and archived redo log backup sets and backup pieces.
- Datafile copies.
- Archived redo logs and their copies.
- Tablespaces and datafiles on the target database.
- Stored scripts, which are named user-created sequences of RMAN commands.
- Persistent RMAN configuration settings.
How do I know if my RMAN is using a catalog?
The CATALOG option will be on the RMAN command line or in the recovery script file. Just “grep” for catalog as a start. Please check your RMAN backup log file. Where you will see where you are connecting to catalog or not.
What RMAN in Oracle?
Oracle Recovery Manager
Oracle Recovery Manager (RMAN) provides a comprehensive foundation for efficiently backing up and recovering the Oracle database. It is designed to work intimately with the server, providing block-level corruption detection during backup and restore.
How do I restore a control file?
To restore a backup control file to its default location:
- If the instance is still running, shut it down: SHUTDOWN ABORT.
- Correct the hardware problem that caused the media failure.
- Restore the backup control file to all locations specified in the CONTROL_FILES parameter.
- Start a new instance and mount the database.
How to restore RMAN catalog database?
– Start RMAN and connect to the target database. – Run the STARTUP FORCE NOMOUNT command. – Run the SET DBID command to distinguish this connected target database from other target databases that have the same name. – Run the RESTORE CONTROLFILE command. After restoring the control file, you can mount the database to restore the rest of the database.
The RMAN recovery catalog is a schema stored in a database that tracks backups and stores scripts for use in RMAN backup. For most all backup operations, you will want to connect to both the database and the backup recovery catalog, using the “catalog” option. According to the…
How to find RMAN Catalog version?
To find RMAN catalog version log-in to the catalog through SQL*Plus and query the table rcver will print version. SQL> select object_type from user_objects where object_name = ‘RCVER’;
Can not backup with RMAN?
Re: Can not backup with RMAN 1. Remove any existing libobk.* or libnwora.* library files. No such library should exist in any of the default… 2. Log in as root on the Oracle server host.
