Oracle 11g RMAN Incremental Backup

DB should be backed up in ARCHIVELOG mode for Incremental Backup.

1.ORACLE_HOME=/u01/app/oracle/product/11.0.1/db_1export ORACLE_HOME

ORACLE_SID=orcl1export ORACLE_SID

PATH=$PATH:$ORACLE_HOME/bin

2.$ sqlplus / as sysdba

SQL> Select log_modeFrom v$database;

O/P -> Make sure the DB is in ARCHIVELOG mode

SQL> exit

3.rman target=/

4.RMAN> Backup incremental level 0 database plus archivelog delete input;

5.RMAN> exit

6.SQL to check the size of the Backup

$ sqlplus / as sysdba

SQL> Select a.set_count, a.start_time, a.completion_time, sum(b.blocks)From v$backup_set a, v$backup_datafile bWhere a.set_count = b.set_countand to_char(a.start_time, 'mm/dd/yyyy hh24:mi:ss') =(Select to_char(max(start_time), 'mm/dd/yyyy hh24:mi:ss')From v$backup_set

Where incremental_level = 0)group by a.set_count, a.start_time, a.completion_time;

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To do a incremental level 1 backup

7.rman target=/RMAN> Backup incremental level 1 database plus archivelog delete input;

8.RMAN> exit

Note: To check the size of the incremental level 1 Backup use SQL in step 6 except use incremental_level = 1 in the inner Where clause.

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