Oracle10g - RMAN Incrementally Updated Backups Feature
By Dave Anderson
Concepts
The RMAN Incrementally Updated Backup feature is designed to limit the amount of redo you will need to apply during recovery operations - thus reduce recovery time . The basic idea is to create image copies of your datafiles, then subsequently update the image copies with incremental backups, i.e. merge level 1 incremental backups (i.e. backupset pieces) into an existing image copy.
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