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What is control file autobackup?
A control file autobackup lets you restore the RMAN repository contained in the control file when the control file is lost and you have no recovery catalog. You do not need a recovery catalog or target database control file to restore the control file autobackup.
How do I do a compressed full backup in RMAN?
The command to take the compressed backup : RMAN> backup as compressed backupset database; There is some CPU overhead associated with compressing backup sets. If the database being backed up is running at or near its maximum load, you may find the overhead from using AS COMPRESSED BACKUPSET unacceptable.
Which is the default channel for autobackup in Oracle?
Oracle recommends that CONFIGURE CONTROLFILE AUTOBACKUP be set to ON. The first channel allocated during the backup job creates the autobackup and places it into its own backup set; for autobackups after database structural changes, the default disk channel makes the backup.
What does it mean to have a full backup in Oracle?
Use the OTN forums for product questions. For support or consulting, file a service request through My Oracle Support. Thank you for your feedback! A full backup of a data file includes all used blocks of the data file. A full backup can be either an image copy or backup set.
What’s the difference between full backup and incremental backup?
A full backup of a data file includes all used blocks of the data file. A full backup can be either an image copy or backup set. An incremental backup copies only those blocks in a data file that change between backups.
What is the default format for control file autobackup?
The control file autobackup filename has a default format of %Ffor all device types, so that RMAN can guess the file location and restore it without a repository. The substitution variable %Fis defined in the description of the CONFIGUREcommand in Oracle Database Backup and Recovery Basics.