Remove a Database from a RMAN Recovery Catalog
There will come a time that you will need to remove a database from the recovery catalog. Removing a database from the recovery catalog removes all metadata for the database from the catalog.
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Registering a Database with a Recovery Catalog
Registering a database with a recovery catalog records the existence of the database with the recovery catalog. Once the database is registered metadata about the database and its backups will be stored in the recovery catalog.
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Creating an RMAN Recovery Catalog
The RMAN Recovery Catalog is a database schema that holds the metadata detailing the RMAN backup operations performed on the target database. The metadata include the following information from about the target database: database structure, RMAN configuration, data file and archive log backups (backup sets, pieces and copies), archived redo logs and their copies. In addition to the metadata the recovery catalog can also store scripts that can be used by all registered target databases.
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Archival Backups RMAN Backups for Long-Term Retention
RMAN has the ability to make an archival backup that is exempt from the configured retention policy. An archival backup is an all inclusive self-contained backup of the database at specific point in time. Archival backups are commonly used to satisfy regulatory requirements such as end year or quarter backups.
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Dropping a Database via RMAN
In Oracle Database 10gR1 Oracle introduced the RMAN command DROP DATABSE. This one simple statement has the ability to completely remove a database including all RMAN backups with the optional INCLUDING BACKUPS clause.
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Backup Duplexing with RMAN
RMAN has the ability to write duplexed backup sets creating up to four identical copies of each backup piece in a backup set to different destinations. Duplexing provides an extra layer of protection against disaster, media damage and human error that is easy to configure.
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Creating Image File Copy Backups with RMAN
When using RMAN to back up to disk you have two options in how to write the backups. The default is a backup set which uses unused block compression and is in an RMAN-specific format. The other method is an image copy that is a bit for bit copy of the data file, archive redo log file or control file.
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Quick RMAN configuration for disk based backups
This document will detail a quick set up of RMAN for disk based backups using Oracle Database 11gR2 base. Read more »
Restore database to another host using RMAN
This document will detail the steps to restore a database on a new host using RMAN. For this demonstration we will be using Oracle Database 11gR2 on Linux and disk based backup.
Recover from a corrupt or missing control file
This document will detail recovery scenarios dealing with missing or corrupted control files using RMAN disk based backups. Read more »
Recover from a missing data file
This document will detail two recovery scenarios dealing with a missing datafile using a RMAN disk based backup. Read more »
Block Media Recovery with RMAN
This document will detail a block media recovery scenario using a RMAN disk based backup. If you need a document for configuring RMAN see the post Setting up RMAN for backup and recovery using Database Control
Setting up RMAN for backup and recovery using Database Control
Using Database Control you can configure RMAN to back up you database to disk or tape with relative ease. This document will detail how to configure RMAN for disk based backups and perform a backup.
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