Block Change Tracking CTWR

Block Change Tracking (file):-RMAN's change tracking feature for incremental backups improves incremental backup performance by recording changed blocks in each datafile in a change tracking file. If change tracking is enabled, RMAN uses the change tracking file to identify changed blocks for incremental backup, thus avoiding the need to scan every block in the datafile. …

Incremental backup and Full Backup

1. Full Backup or zero level backup. 2. Incremental Backup’s: An incremental backup is one in which successive backup contains only that portion that has changed in block level or after a full backup level 0 Level 0 and Level 1 Incremental Backups Incremental backups can be either level 0 or level 1. A level …