Incremental Level n and Incremental Level n Cumulative

Hello,
Working on Oracle 10.2.0.3.0 on AIX 5.2. Taking backup through scripts using recovery catalog.
(Incremental level 0 cumulative)
RMAN> run {execute script cuml_level_0; }
executing script: cuml_level_0
Starting backup at 18-DEC-07
current log archived
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=146 devtype=DISK
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=14 recid=13 stamp=641645002
channel ORA_DISK_1: starting piece 1 at 18-DEC-07
channel ORA_DISK_1: finished piece 1 at 18-DEC-07
piece handle=/dbbkup/06j3teel_1_1 tag=TAG20071218T104332 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:16
Finished backup at 18-DEC-07
Starting backup at 18-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting incremental level 0 datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/dbprod5/BACKUPTEST/BACKUPTEST/system01.dbf
input datafile fno=00003 name=/dbprod5/BACKUPTEST/BACKUPTEST/sysaux01.dbf
input datafile fno=00005 name=/dbprod5/BACKUPTEST/BACKUPTEST/example01.dbf
input datafile fno=00002 name=/dbprod5/BACKUPTEST/BACKUPTEST/undotbs01.dbf
input datafile fno=00004 name=/dbprod5/BACKUPTEST/BACKUPTEST/users01.dbf
channel ORA_DISK_1: starting piece 1 at 18-DEC-07
channel ORA_DISK_1: finished piece 1 at 18-DEC-07
piece handle=/flash_recovery/BACKUPTEST/backupset/2007_12_18/o1_mf_nnnd0_TAG200712
18T104351_3pgqjy4b_.bkp tag=TAG20071218T104351 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:02:07
Finished backup at 18-DEC-07
Starting backup at 18-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=15 recid=14 stamp=641645163
channel ORA_DISK_1: starting piece 1 at 18-DEC-07
channel ORA_DISK_1: finished piece 1 at 18-DEC-07
piece handle=/dbbkup/08j3tejt_1_1 tag=TAG20071218T104620 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 18-DEC-07
Starting Control File and SPFILE Autobackup at 18-DEC-07
piece handle=/flash_recovery/BACKUPTEST/autobackup/2007_12_18/o1_mf_s_641645187_3p
gqoo2m_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 18-DEC-07(Incremental level 0 backup)
RMAN> run {execute script incr_level_0;}
executing script: incr_level_0
Starting backup at 18-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=14 recid=13 stamp=641645002
input archive log thread=1 sequence=15 recid=14 stamp=641645163
input archive log thread=1 sequence=16 recid=15 stamp=641645676
channel ORA_DISK_1: starting piece 1 at 18-DEC-07
channel ORA_DISK_1: finished piece 1 at 18-DEC-07
piece handle=/dbbkup/0aj3tf3h_1_1 tag=TAG20071218T105440 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:08
Finished backup at 18-DEC-07
Starting backup at 18-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting incremental level 0 datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=/dbprod5/BACKUPTEST/BACKUPTEST/system01.dbf
input datafile fno=00003 name=/dbprod5/BACKUPTEST/BACKUPTEST/sysaux01.dbf
input datafile fno=00005 name=/dbprod5/BACKUPTEST/BACKUPTEST/example01.dbf
input datafile fno=00002 name=/dbprod5/BACKUPTEST/BACKUPTEST/undotbs01.dbf
input datafile fno=00004 name=/dbprod5/BACKUPTEST/BACKUPTEST/users01.dbf
channel ORA_DISK_1: starting piece 1 at 18-DEC-07
channel ORA_DISK_1: finished piece 1 at 18-DEC-07
piece handle=/flash_recovery/BACKUPTEST/backupset/2007_12_18/o1_mf_nnnd0_TAG200712
18T105449_3pgr5d2l_.bkp tag=TAG20071218T105449 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:01:58
Finished backup at 18-DEC-07
Starting backup at 18-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=17 recid=16 stamp=641645812
channel ORA_DISK_1: starting piece 1 at 18-DEC-07
channel ORA_DISK_1: finished piece 1 at 18-DEC-07
piece handle=/dbbkup/0cj3tf7r_1_1 tag=TAG20071218T105659 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 18-DEC-07
Starting Control File and SPFILE Autobackup at 18-DEC-07
piece handle=/flash_recovery/BACKUPTEST/autobackup/2007_12_18/o1_mf_s_641645826_3p
gr9m7x_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 18-DEC-07There are certain differences. Any comments.
Thank you,
Adith

I think you are taking backup with backup plus archive log,archive log backup does the
following steps chronologically
1. Runs the ALTER SYSTEM ARCHIVE LOG CURRENT command.
2. Runs BACKUP ARCHIVELOG ALL. Note that if backup
   optimization is enabled, then RMAN skips logs that it
   has already backed up to the specified device.
3. Backs up the rest of the files specified in BACKUP
   command.
4. Runs the ALTER SYSTEM ARCHIVE LOG CURRENT command again
   cuase right now it will Backs up any remaining
   archived logsgenerated during the backup.
SQL> archive log list
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     83
Next log sequence to archive   85
Current log sequence           85
You can see next log sequence to be archived is 85
RMAN> backup database plus archivelog
2> ;
Starting backup at 26-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=85 recid=89 stamp=642354039
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_M
F_ANNNN_TAG20071226T154039_3Q4CX955_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:04
Finished backup at 26-DEC-07
Starting backup at 26-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\SYSTEM01.DBF
input datafile fno=00003 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\SYSAUX01.DBF
input datafile fno=00002 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\UNDOTBS01.DBF
input datafile fno=00004 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\USERS01.DBF
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_MF_NNNDF_TAG20071226T154044_3Q4CXG9X_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:58
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current controlfile in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_MF_NCSNF_TAG20071226T154044_3Q4CZ8GR_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 26-DEC-07
Starting backup at 26-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=86 recid=90 stamp=642354108
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_MF_ANNNN_TAG20071226T154148_3Q4CZFVO_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 26-DEC-07
SQL> archive log list
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     85
Next log sequence to archive   87
Current log sequence           87
RMAN> backup database plus archivelog
2> ;
Starting backup at 26-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=85 recid=89 stamp=642354039
input archive log thread=1 sequence=86 recid=90 stamp=642354108
input archive log thread=1 sequence=87 recid=91 stamp=642354774
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_M
F_ANNNN_TAG20071226T155255_3Q4DNBSM_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:04
Finished backup at 26-DEC-07
Starting backup at 26-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\SYSTEM01.DBF
input datafile fno=00003 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\SYSAUX01.DBF
input datafile fno=00002 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\UNDOTBS01.DBF
input datafile fno=00004 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\USERS01.DBF
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_M
F_NNNDF_TAG20071226T155302_3Q4DNJ28_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current controlfile in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_M
F_NCSNF_TAG20071226T155302_3Q4DOYL6_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 26-DEC-07
Starting backup at 26-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=88 recid=92 stamp=642354835
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_M
F_ANNNN_TAG20071226T155355_3Q4DP4SQ_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 26-DEC-07
RMAN>
RMAN> show backup optimization
2> ;
RMAN configuration parameters are:
CONFIGURE BACKUP OPTIMIZATION OFF; # default
RMAN> configure backup optimization on
2> ;
new RMAN configuration parameters:
CONFIGURE BACKUP OPTIMIZATION ON;
new RMAN configuration parameters are successfully stored
SQL> archive log list
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence     87
Next log sequence to archive   89
Current log sequence           89
RMAN> backup database plus archivelog
2> ;
Starting backup at 26-DEC-07
current log archived
using channel ORA_DISK_1
skipping archive log file C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\ARCHIVELOG\2007_12_26\O1_MF_1_85_3Q4CX5XS_.ARC; already backed up 2 time(s)
skipping archive log file C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\ARCHIVELOG\2007_12_26\O1_MF_1_86_3Q4CZCZ1_.ARC; already backed up 2 time(s)
skipping archive log file C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\ARCHIVELOG\2007_12_26\O1_MF_1_87_3Q4DN5MZ_.ARC; already backed up 1 time(s)
skipping archive log file C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\ARCHIVELOG\2007_12_26\O1_MF_1_88_3Q4DP351_.ARC; already backed up 1 time(s)
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=89 recid=93 stamp=642355243
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_MF_ANNNN_TAG20071226T160049_3Q4F3GYM_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:09
Finished backup at 26-DEC-07
Starting backup at 26-DEC-07
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
input datafile fno=00001 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\SYSTEM01.DBF
input datafile fno=00003 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\SYSAUX01.DBF
input datafile fno=00002 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\UNDOTBS01.DBF
input datafile fno=00004 name=C:\ORACLE10G\ORACLE\ORADATA\ORCL1\ORCL1\USERS01.DBF
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_MF_NNNDF_TAG20071226T160111_3Q4F3ZXF_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:01:16
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current controlfile in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_MF_NCSNF_TAG20071226T160111_3Q4F69NO_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:06
Finished backup at 26-DEC-07
Starting backup at 26-DEC-07
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=90 recid=94 stamp=642355360
channel ORA_DISK_1: starting piece 1 at 26-DEC-07
channel ORA_DISK_1: finished piece 1 at 26-DEC-07
piece handle=C:\ORACLE\FLASH_RECOVERY_AREA\ORCL1\ORCL1\BACKUPSET\2007_12_26\O1_MF_ANNNN_TAG20071226T160240_3Q4F6L09_.BKP comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 26-DEC-07
RMAN>Khurram

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EM12c Create non-cumulative incremental (level 1) backups against target DB

Is this not available? It appears that we can only create cumulative RMAN incremental backups through Cloud 12c (this is against an 11gR2 DB). Are non-cumulative incrementals no longer supported?

When scheduling a backup through the wizard, the last step displays the RMAN script the wizard has generated for you. Have you tried clicking the 'Edit RMAN Script' and removing the word "cumulative" from the generated script?
I run backups using scripts stored in the recovery catalog so I don't use the click-through backup wizard, but does it not result in a differential incremental backup if you edit the script?

Rman incremental level 1 merge with level 0

from my reading of the rman backup document, it seems the merger incremental level 1to level 0 for recover only apply to merge with image copy, not the backupset. Is that true? However, such backup scheme will create a huge backup image copy, almost fill up my assigned backup depository directory. Is the following script works as merging with level 0 ?
{backup as compressed backupset incremental level 1 for recover of tag 'bk$LEVEL0' database;}
It run without error and created a very small incr file size, but not sure it has the same meaning of "for recover of copy" as in other document.

If that is true, why we need to create an incremental level 0 backupset as the base for recover? I have one compressed backupset level 0 at beginning, then incremental level 1 for recover. with the "recover of copy with tag", it seems to create a redundant full backup. Also Iam confused, The "recover of copy with tag" is actually an image copy of the full backupset or the image copy of the original database.
My script as for full backup at beginning
{ backup as compressed backupset incremental level 0 cumulative device type disk tag 'Baanbk$LEVEL0' database; }
then incremental
{ backup as compressed backupset incremental level 1 for recover of tag 'Baanbk$LEVEL0' database; }
Should I modify the full backupset script?

Difference between backup incremental level 0 Vs incremental level 1?

I am getting confuse. I have 2 commands:
-- Weekly full backup --
backup incremental level 0 database plus archivelog delete all input;
-- Daily backup --
backup incremental level 1 cumulative database plus archvielog delete all inputs;
What is the different if I put "level 1" in the weekly full backup and "level 0" in daily backup?
FAN

Its not much tricky read the doc
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/rcmconc1005.htm#sthref242What you are not getting everything is written there.
Khurram

Rman backup level 0 and then cumulative

Hi All,
I have a system that had a level 0 backup done last year and since then the following has taken place
run {
allocate channel oem_disk_backup device type disk;
recover copy of database with tag 'ORA\$OEM_LEVEL_0';
backup incremental level 1 cumulative copies=1 for recover of copy with tag 'ORA\$OEM_LEVEL_0' database;
In the event of recovery, how will RMAN handle this. I am sure that the orignal level 0 is not now on disk.
best regards
Alan

This is an incrementally updated backup. The first time the scripts runs, recover copy ... does nothing and backup incremental level 1 ... creates image copies (not a backupset) of the datafiles. That can be seen as level 0 base backup and you should still have these image copies,
The second time, recover copy ... again does anything (because no incremental backup exists at this time), but backup incremental level 1 ... now creates its first incremental backup.
From now on (third,fourth and so on time) the process does always the same:
recover copy ... applies the incremental backup previously created to the image copies,
backup incremental level 1 ... performs the next incremental backup.
That seems to be the 'Oracle suggested' backup script generated by EM. Archivelogs should be backed up, too.
Werner

Cumulative Incremental?

Hopefully you all can resolve a question for me. I was under the impression that a CUMULATIVE backup and an INCREMENTAL backup were two separate things.
INCREMENTAL LEVEL : Copies only those data blocks that have changed since the last incremental integer backup, where integer is 0 or 1 (see Example 2-16).
CUMULATIVE : Copies the data blocks used since the most recent level 0 backup (see Example 2-16).
So I go to "Example 2-16"...
http://docs.oracle.com/cd/B28359_01/backup.111/b28273/rcmsynta007.htm
Example 2-16 Performing a Cumulative Incremental Backup
This example backs up all blocks changed in the database since the most recent level 0 incremental backup. If no level 0 backup exists when you run a level 1 backup, then RMAN makes a level 0 backup automatically. Any inaccessible files are skipped.
BACKUP
INCREMENTAL LEVEL 1 CUMULATIVE
SKIP INACCESSIBLE
DATABASE;I am confused. I thought that cumulative/incremental were exclusive backup types. How can they both be referenced in the same code block?
Thanks

Hi,
please donot be confuse In the same document it written
Incremental Backups:
An INCREMENTAL backup at level 0 backs up all data blocks in datafiles being backed up. An incremental backup at level 0 is identical in content to a FULL backup,
but unlike a full backup the level 0 backup is a part of the incremental backup strategy.
A level 1 backup copies only changed blocks. A level 1 incremental backup is either differential or CUMULATIVE.
*If cumulative, RMAN backs up all blocks changed since the most recent level 0 backup.*
*If differential, RMAN backs up blocks updated since the most recent level 0 or level 1 incremental backup.*
HTH :)

Rman level 0 and level1 restore

Hi experts
run{
BACKUP CHECK LOGICAL AS COMPRESSED BACKUPSET INCREMENTAL LEVEL = 1 CUMULATIVE DEVICE TYPE DISK TAG='LEV1' DATABASE PLUS ARCHIVELOG;
Backup current controlfile TAG='CONTROL_LEV1';
Backup spfile TAG='SPFILE_LEV1';
Same for LEV0 instead of LEV1 --> LEV0
I am doing restore of LEV0 backup then LEV1 backup to remote server
flashback turned on primary database. I have restored DB using LEV0 on remote server
After restoring LEV0
I have copied LEV1 backup to remote server
On remote server
shutdown database
flashback daabse to scn CURRENT_SCN ;
the level 0 backup has tag of LEV0 and level 1 backup has LEV1 tag, LEV1 backups are coped to remote server
What would be next command after flashback database
i tried to do restore database but it does not seem to read from LEV1 . seems i have missed on a step
thanks

restore database from TAG='LEV1';you can't simply restore data from level 1 ,data will be restored from 0 level backup and than recovery will be perform from level 1 backup.
Read
"Incremental Backup Algorithm
Each data block in a datafile contains a system change number (SCN), which is the SCN at which the most recent change was made to the block. During an incremental backup, RMAN reads the SCN of each data block in the input file and compares it to the checkpoint SCN of the parent incremental backup. (If block change tracking is enabled, RMAN does not read the portions of the file known to have not changed since the parent incremental backup.) If the SCN in the input data block is greater than or equal to the checkpoint SCN of the parent, then RMAN copies the block.
One consequence of this mechanism is that RMAN applies all blocks containing changed data during recovery—even if the change is to an object created with the NOLOGGING option. Hence, making incremental backups is a safeguard against the loss of changes made by NOLOGGING operations.
"

Incremental cumulative backup ?

Oracle 11.2.0.2 / Windows 2008
Up till now, I've been running nightly 'full' backups but I've now decided to run Incremental Cumulative backups. What I plan to do is create a level '0' backup on a Monday night, and then run daily level '1' (cumulative) backups from Tuesday - Sunday and then for the whole process to start again for the following week. I've setup this up within enterprise manager (and I'm going to run them via enterprise manager) and it has produced the below scripts
Level 0
$rman_script="backup incremental level 0 cumulative device type disk tag '%TAG' database;
backup device type disk tag '%TAG' archivelog all not backed up delete all input;
allocate channel for maintenance type disk;
delete noprompt obsolete device type disk;
release channel;
&br_save_agent_env();
&br_prebackup($l_db_connect_string, $l_is_cold_backup, $l_use_rcvcat, $l_db_10_or_higher, $l_backup_strategy, "TRUE");
my $result = &br_backup();
exit($result);
Level 1
$rman_script="backup incremental level 1 cumulative device type disk tag '%TAG' database;
backup device type disk tag '%TAG' archivelog all not backed up delete all input;
allocate channel for maintenance type disk;
delete noprompt obsolete device type disk;
release channel;
&br_save_agent_env();
&br_prebackup($l_db_connect_string, $l_is_cold_backup, $l_use_rcvcat, $l_db_10_or_higher, $l_backup_strategy, "TRUE");
my $result = &br_backup();
exit($result);
At the moment, my retention policy is set to 31 days and the 'Retain at least the specified number of full backups for each datafile is set to '1'. Do I have to change this to cater for the above ?
Thanks in advance for any assistance

>'Retain at least the specified number of full backups for each datafile is set to '1'.
Are you referring to configuration in your MML -- NetBackup or Networker or the like ?
RMAN's retention policy is in terms of either redundancy (number of copies) or days (number of days). You've defined it to be 31 days so the oldest backup that would not be obsoleted would be the L0 backup closest to sysdate-31 at any time.
Hemant K Chitale

Incremental Level n and Incremental Level n Cumulative

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