Rapid Recovery Using Virtual Full Backups

Recovery Appliance uses virtual full backups to provide rapid recovery to any point in time, regardless of the amount of data being recovered. The on-disk recovery strategy of Recovery Appliance has the advantage that RMAN can recover virtual full backups to any point in time without applying incremental backups.

When a database is protected by the Recovery Appliance, RMAN must only restore a single level 0 backup for the day of the RPO, and then recover up to the last second using redo log files sent using the real-time redo transport feature. For example, if the recovery window is 7 days, and if the RPO is 5 days ago, then RMAN can restore a single virtual full (level 0) backup that is current to 5 days ago, and then recover it using redo—not level 1 incremental backups.