Determine set until time from particular backup set

Hi Gurus,
First of all thank you for everybody reading my question.
I am using database control file instead of recovery catalog.
database 10gr2
10.2.0.3
os is suse linux
Is there way (any magic query)
you can determine sec part correctly for set until time looking backup set:
7544 B F A DISK 28-AUG-11 1 1 YES PROD_FULL_BKUP_08.28.2011
ALLOCATE AUXILIARY CHANNEL aux1 DEVICE TYPE DISK;
ALLOCATE AUXILIARY CHANNEL aux2 DEVICE TYPE DISK;
ALLOCATE AUXILIARY CHANNEL aux3 DEVICE TYPE DISK;
#SET UNTIL SEQUENCE 10008 thread 1;
SET UNTIL TIME "TO_DATE('28-Aug-2011 03:40:32', 'dd-mon-YYYY hh24:mi:ss')";
DUPLICATE TARGET DATABASE TO "11demo"
I try hit and try for determining sec part.
is there a proven way.
'28-Aug-2011 03:40:31' worked
'28-Aug-2011 03:40:38' didn't
'28-Aug-2011 03:40:35' didn't.
1)
I look os time stamp set for backup.
-rw-r----- 1 oracle oinstall 9281626112 2011-08-28 03:40 o1_mf_nnndf_PROD_FULL_BKUP_08_75mxdb7v_.bkp
2) I add start time(03:00:00) +elapsed time.
channel ORA_DISK_1: backup set complete, elapsed time: 00:40:35
thanks

I can get
" list backup of archivelog all"
BS Key Size Device Type Elapsed Time Completion Time
7576 1.51G DISK 00:05:04 02-SEP-11
BP Key: 7576 Status: AVAILABLE Compressed: YES Tag: ROD_ARC_09.02.2011
Piece Name: /u02/flash_recovery_area/ROD/backupset/2011_09_02/o1_mf_ annnn_ADVPROD_ARC_09.02.20_7616s3fm_.bkp
List of Archived Logs in backup set 7576
Thrd Seq Low SCN Low Time Next SCN Next Time
1 205824 3898563613 01-SEP-11 3898573074 01-SEP-11
you can get "SET UNTIL SEQUENCE thread "
correctly,
But How does one find out the exact time the backup was completed?
I simply used the timestamp from the Rman backup as an approximate indicator.
Oracle Error:
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: system01.dbf'
released channel: aux1
released channel: aux2
released channel: aux3
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 09/01/2011 12:53:48
RMAN-03015: error occurred in stored script Memory Script
RMAN-06053: unable to perform media recovery because of missing log
RMAN-06025: no backup of log thread 1 seq 13891 lowscn 4013222506 found to restore
Edited by: 880674 on Sep 2, 2011 7:07 AM

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You can use until clause:
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Hello
How can I use "set until" clause to restore the controlfile ?
The database is already in archivelog mode.
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run {
set until time "TO_DATE('2011-02-24 09:30:00','yyyy-mm-dd hh24:mi:ss')";
restore controlfile from autobackup;
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RMAN> 2> 3> 4>
executing command: set until time
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RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
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For Datafiles and ArchiveLogs :
SET UNTIL works because RMAN can query the Controlfile (that is already present) {OR the Catalog, if available} to determine the Database Incaranation and identify all the BackupSets, BackupPieces and SCNs for datafiles.
For Controlfiles :
SET UNTIL needs to be able to query a source or determine a default location. If a Catalog is available, it can query the catalog. In the absence of the catalog, it can only determine the expected location to restore from on the basis of the AUTOBACKUP location and FORMAT.
When you have AutoBackup to Disk, using an FRA and have the AUTOBACKUP FORMAT set correctly you will notice that the controlfile backups go to a directory that has the date as part of the directory name. RMAN can "query" the backups it finds in each of the folders in the autobackup location and determine the correct piece to restore from. This is predicated on the FORMAT being the expected format. That is why the example also shows how you set the FORMAT before you do the restore -- to "tell" RMAN what format to expect. (Remember that it has no repository -- controlfile or catalog -- to query so it doesn't know the backup piece names, unless they follow the expected location and format !)
All of this works well on disk. On tape, it has to actually send it's requests to the Medial Management Layer -- it is the Media Management Layer that maintains the catalog of tapes and files on tapes. (Remember that RMAN still doesn't have a repository that it can query !).
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Using set until time for duplicate is extremely slow

Whenever I do a duplicate using the set until time it takes forever to get started. The executing command: SET until clause takes about 20 minutes, and then when allocating channels it takes about 10 minutes per channel. Both db's are 10.2.0.3, and in archivelog mode. When I do just a plain duplicate database it runs through just fine, no pauses or anything. Can someone please poing me in the right direction or shed some light on this issue for me?
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3> duplicate target database to DEST;
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allocated channel: ORA_AUX_DISK_2
channel ORA_AUX_DISK_2: sid=3984 devtype=DISK
allocated channel: ORA_AUX_DISK_3
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allocated channel: ORA_AUX_DISK_4
channel ORA_AUX_DISK_4: sid=3982 devtype=DISK
allocated channel: ORA_AUX_DISK_5
channel ORA_AUX_DISK_5: sid=3981 devtype=DISK
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contents of Memory Script:
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clone database
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executing Memory Script
executing command: SET until clause
Starting recover at 17-MAR-09
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: sid=3981 devtype=DISK
allocated channel: ORA_AUX_DISK_2
channel ORA_AUX_DISK_2: sid=3982 devtype=DISK
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channel ORA_AUX_DISK_3: sid=3983 devtype=DISK
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run
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File LV Type Ckp SCN Ckp Time Name
1 Full 4072944 06-JUL-05 /oracle/oradata/system01.dbf
8 Full 4072944 06-JUL-05 /oracle/oradata/tools01.dbf
12 Full 4072944 06-JUL-05 /oracle/oradata/test01.dbf
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1 Full 4072944 06-JUL-05 /oracle/oradata/system01.dbf
8 Full 4072944 06-JUL-05 /oracle/oradata/tools01.dbf
12 Full 4072944 06-JUL-05
Why is the RMAN list empty for the deleted tablespace? That's the reason why there is nothing to reover from?

check at sql prompt
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RMAN-00571: ===========================================================
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My OS: UNIX
DB : 10.2.0.1
As i checked the database it will indicate datafile 5 is header corruption.
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ORA-19870: error reading backup piece /cms/BACKUP/ora_BSCS_set149_piece1_20111206_4lmth1qj_1_1
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Starting restore at 09-DEC-11
using channel ORA_DISK_1
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
147 Incr 0 1.10G DISK 00:14:10 06-DEC-11
BP Key: 147 Status: AVAILABLE Compressed: YES Tag: TAG20111206T085858
Piece Name: /cms/BACKUP/ora_BSCS_set149_piece1_20111206_4lmth1qj_1_1
List of Datafiles in backup set 147
File LV Type Ckp SCN Ckp Time Name
1 0 Incr 9068988016235 06-DEC-11 /u01/app/oracle/oradata/BSCS/system01.dbf
2 0 Incr 9068988016235 06-DEC-11 /u01/app/oracle/oradata/BSCS/undotbs01.dbf
3 0 Incr 9068988016235 06-DEC-11 /u01/app/oracle/oradata/BSCS/sysaux01.dbf
4 0 Incr 9068988016235 06-DEC-11 /u01/app/oracle/oradata/BSCS/users01.dbf
5 0 Incr 9068988016235 06-DEC-11 /u01/app/oracle/oradata/BSCS/DATA.dbf
6 0 Incr 9068988016235 06-DEC-11 /u01/app/oracle/oradata/BSCS/users02.dbf
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1 1 Incr 9068988069143 07-DEC-11 /u01/app/oracle/oradata/BSCS/system01.dbf
2 1 Incr 9068988069143 07-DEC-11 /u01/app/oracle/oradata/BSCS/undotbs01.dbf
3 1 Incr 9068988069143 07-DEC-11 /u01/app/oracle/oradata/BSCS/sysaux01.dbf
4 1 Incr 9068988069143 07-DEC-11 /u01/app/oracle/oradata/BSCS/users01.dbf
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Piece Name: /cms/BACKUP/ora_BSCS_set153_piece1_20111208_4pmtm6nn_1_1
List of Datafiles in backup set 151
File LV Type Ckp SCN Ckp Time Name
1 1 Incr 9068988123314 08-DEC-11 /u01/app/oracle/oradata/BSCS/system01.dbf
2 1 Incr 9068988123314 08-DEC-11 /u01/app/oracle/oradata/BSCS/undotbs01.dbf
3 1 Incr 9068988123314 08-DEC-11 /u01/app/oracle/oradata/BSCS/sysaux01.dbf
4 1 Incr 9068988123314 08-DEC-11 /u01/app/oracle/oradata/BSCS/users01.dbf
5 1 Incr 9068988123314 08-DEC-11 /u01/app/oracle/oradata/BSCS/DATA.dbf
6 1 Incr 9068988123314 08-DEC-11 /u01/app/oracle/oradata/BSCS/users02.dbf
no backup of log thread 1 seq 411 lowscn 9068988025356 found to restore
no backup of log thread 1 seq 412 lowscn 9068988167985 found to restore
no backup of log thread 1 seq 413 lowscn 9068988203392 found to restore
List of Archived Log Copies
Key Thrd Seq S Low Time Name
263 1 3 A 05-DEC-11 /u01/app/oracle/admin/BSCS/arch/BSCS/1_3_769127125.dbf
273 1 13 A 07-DEC-11 /u01/app/oracle/admin/BSCS/arch/BSCS/1_13_769127125.dbf
Media recovery start SCN is 9068988123314
Recovery must be done beyond SCN 9068988123314 to clear data files fuzziness
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Determine set until time from particular backup set

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