Merging Incremental Backups for Oracle

Merged incremental backups can reduce the time for Oracle database recovery and are suitable primarily for a disk-based backup and recovery strategy.

The first time the merged incremental backup runs, it creates a level 0 backup of the datafile. On subsequent runs the script creates a level 1 incremental backup of the datafile by using the System Change Number as a reference, and applies to the image all level 1 backups completed since the last full backup.

By default, the tag in the RMAN script is the merged incremental subclient tag, and links the incremental backups to the image copy. If you assign another tag to the backup, the suffix "_mic" is automatically appended to the tag to indicate that it is a merged incremental backup tag.

Before You Begin

1. Configure a merged incremental backup.

2. Enable the Flash Recovery Area.

   The image copy and the incremental backups are stored in the Oracle flash recovery area.

3. Optional: Configure the number of jobs that get executed at the same time. For more information, see Throttling Backup Jobs.

Procedure

1. From the CommCell Browser, expand Client Computers > client > Oracle > instance.

2. Right-click the subclient configured for Merged Incremental and click Backup.

3. On the Backup Options for Subclient dialog box, select the backup options.

   1. In the Backup Type section, select Incremental.

   2. In the Job Initiation section, specify whether to run the backup now or if it will be scheduled.

      Note

      If you selected Schedule, set up the schedule.

      For information about configuring a backup schedule, see Schedule Backups.

4. Optional: View or customize the RMAN script that is automatically generated from the selected options. For more information, see Viewing Oracle Backup RMAN Scripts and Customizing Oracle Backup RMAN Scripts.

5. Click OK.

What to Do Next

• Perform Flash Recovery Area Backups for Oracle Using RMAN.