(Q) What are the characteristics of Incremental Backups?
- Store only blocks changed since a previous incremental (Level 0 or Level 1) backup
- Provide more compact backups and faster recovery
- Less redo logs are applied during recovery
- If you enable block change tracking, then full table scans on input files will not be performed during recovery
- You can take a Level 0 or Level 1 Incremental Backup
$ rman RMAN> CONNECT TARGET / RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE SKIP INACCESSIBLE DATABASE;
The example above:
- Backs up all blocks changed since the most recent LEVEL 0 incremental backup.
- If no LEVEL 0 backup exists, RMAN makes a LEVEL 0 automatically.
- Inaccessible files are skipped
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