Extract datafile from rman backup

Hi
I want to search when logical corruption occurs in my database, so i want to extract my rman's backup and test one file with db_verify.
But i don't want to recover database. How to extract one file without recovery and destroing working database?
thnx
Podkov

podkov wrote:
Hi
I want to search when logical corruption occurs in my database, so i want to extract my rman's backup and test one file with db_verify.
But i don't want to recover database. How to extract one file without recovery and destroing working database?
thnx
PodkovWhy don't you use VALIDATE command to check for corruption without restoring the original file?
VALIDATE BACKUPSET 4;Instead backupset number, write correct backupset number where datafiles resides. VALIDATE command will check that datafile in that backupset against physical or logical corruption and will update V$DATABASE_BLOCK_CORRUPTION view
Additionaly, you should know that you can restore any datafile from backup and not recover it. Restore is the operation where you get database files from backup, Recover is the operation when you apply archived redo log files to restored datafiles and synchronize all files in the database
Edited by: Kamran Agayev A. on Aug 28, 2009 1:18 PM

Similar Messages

Creating a new controlfile with datafiles in RMAN backup

Hi,
i am using oracle 10g (10.2.0.1) in RHEL5 server. i am trying to restore a RMAN backup from one server to another new server with new db name. i have taken out the spfile from RMAN autobackup and created pfile from it and edited the pfile with new dbname and directory structure and started the db in nomount with the new pfile. Now i have restored the controfile from the RMAN autobackup tried to put the database in mount state. But it failed due to the below error
RMAN-03002: failure of alter db command at 11/05/2012 21:44:56
ORA-01103: database name 'ORADB' in control file is not 'DEVDB'
Hence i shutdown the database and started the db in nomount with new pfile and tried to create the controlfile with the new db name,but it failed as it is looking for the datafiles.
ORA-01503: CREATE CONTROLFILE failed
ORA-01565: error in identifying file
'/u01/app/oracle/oradata/DEVDB/datafile/o1_mf_system_80jq0kfw_.dbf'
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
All my datafiles reside in my RMAN backup. How to get the datafiles from RMAN backup in the above scenario??
Regards,
007

Hello;
The location and filename and DBIS will be different, but you need something like this :
$ORACLE_HOME/bin/rman << EOF
CONNECT TARGET /
STARTUP NOMOUNT;
SET DBID 3754763357; #DBID of PROD database
RUN
   ALLOCATE CHANNEL c1 DEVICE TYPE disk format '/u01/oradata/backups';
   RESTORE CONTROLFILE FROM '/u01/oradata/backups/sb_t790762003_s85_p1';
   ALTER DATABASE MOUNT;
   SET NEWNAME FOR DATAFILE 1 TO '/u01/app/oracle/oradata/CLONE/system01.dbf';
    SET NEWNAME FOR TEMPFILE 1 TO '/u01/app/oracle/oradata/CLONE/temp01.dbf';
   RESTORE DATABASE;
   SWITCH DATAFILE ALL;
   RECOVER DATABASE;
   release channel c1;
ALTER DATABASE OPEN RESETLOGS; So you need "SET NEWNAME" for all your files
Full Example
http://www.visi.com/~mseberg/rman/restore_database_without_catalog.html
Best Regards
mseberg

Setting up new dbname/sid while creating oracle db from rman backups in 11g

Hi all,
I have rman backups and need to create another database from rman backups with different name... but it is unsuccessful..
created instance with new db...
running create new db connecting rman auxiliary sys/password@newdb
run {
SET NEWNAME FOR DATAFILE 1 TO 'F:\app\HOME\oradata\clonedb1\SYSTEM01.DBF';
SET NEWNAME FOR DATAFILE 2 TO 'F:\app\HOME\oradata\clonedb1\SYSAUX01.DBF';
SET NEWNAME FOR DATAFILE 3 TO 'F:\app\HOME\oradata\clonedb1\UNDOTBS01.DBF';
SET NEWNAME FOR DATAFILE 4 TO 'F:\app\HOME\oradata\clonedb1\USERS01.DBF';
SET NEWNAME FOR DATAFILE 5 TO 'F:\app\HOME\oradata\clonedb1\EXAMPLE01.DBF';
SET NEWNAME FOR TEMPFILE 1 TO 'F:\app\HOME\oradata\clonedb1\TEMP01.DBF';
DUPLICATE DATABASE TO clonedb
pfile 'D:\TESTDELETE\initclonedb1.ora'
BACKUP LOCATION 'F:\app\HOME\flash_recovery_area\orcl\'
LOGFILE GROUP 1 ('F:\APP\HOME\ORADATA\ORCL\REDO01.LOG') SIZE 60M REUSE,
GROUP 2 ('F:\APP\HOME\ORADATA\ORCL\REDO02.LOG.rdo') SIZE 60M REUSE,
GROUP 3 ('F:\APP\HOME\ORADATA\ORCL\REDO03.LOG') SIZE 60M REUSE;
Error it shown is in rman backup creation is as follows
<part>>
sql statement: alter system set db_name = ''ORCL'' comment= ''Modified by RMAN
duplicate'' scope=spfile
Oracle instance shut down
Oracle instance started
Total System Global Area 640286720 bytes
Fixed Size 1376492 bytes
Variable Size 314576660 bytes
Database Buffers 318767104 bytes
Redo Buffers 5566464 bytes
Starting restore at 20-DEC-11
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=133 device type=DISK
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:07
output file name=F:\APP\HOME\ORADATA\CLONEDB1\CONTROL01.CTL
output file name=F:\APP\HOME\FLASH_RECOVERY_AREA\CLONEDB1\CONTROL02.CTL
Finished restore at 20-DEC-11
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 12/20/2011 07:07:11
RMAN-03015: error occurred in stored script Memory Script
RMAN-06136: ORACLE error from auxiliary database: ORA-01102: cannot mount databa
se in EXCLUSIVE mode
RMAN> EXIT
how can i prevent rman setting db_name=orcl which is already exists in the db.. i need to create db from rman backups with different dbname...
whould someone help me out, how can i create database from another database rman backups with different dbname/sid on same host..
My pfile has new db_name , but while db creation rman setting to db_name to source dbname.. it should be new db name that i want create with new db name...
is there any RMAN command to specify new DB name it should set while running
sql statement: alter system set db_name = newdbname -- as part rman script execution...
it appears to be i should not touch the soruce db.. i have access to only source db rman backups and need to create another db with different dbname/sid.. please do help...

When you performing RMAN duplicate why you making your script so complicated?
Your instance name and DB name can be different, But what is the contents in your pfile "D:\TESTDELETE\initclonedb1.ora" ? please do post
Have you started any other services related to ORACLE? check in start --> run --> services.msc any other active oracles services, Make sure you have clonedb1.
Startup in nomount
check the connectivity to target server.
SET NEWNAME FOR TEMPFILE 1 TO 'F:\app\HOME\oradata\clonedb1\TEMP01.DBF';Why you mentioning SET NEWNAME FOR DATAFILE ? You have option of db_file_name_convert/log_file_name_convert in case if your file system different in Target & auxiliary.
BACKUP LOCATION 'F:\app\HOME\flash_recovery_area\orcl\'When you have backup in same location why you are mentioning this clause?
First run duplicate from auxiliary server as
rman target sys/*****@prod auxiliary /
RMAN> duplicate target database to "db_name";
Am not sure what you are trying to do. is it 11gR1 or 11gR2?
You have option of duplicate from active database without having backup also..
here some links please check it.
http://docs.oracle.com/cd/E14072_01/backup.112/e10642/rcmdupdb.htm#BGBFDJHB
RMAN 11GR2 : DUPLICATE WITHOUT CONNECTING TO TARGET DATABASE [ID 874352.1]
knowledgespring
     Newbie
Handle:      knowledgespring
Status Level:      Newbie (10)
Registered:      Dec 26, 2007
Total Posts:      243
Total Questions:      77 (75 unresolved)
So sad that forum was able to help only in two answers out of your 77 questions :(
Edited by: CKPT on Dec 21, 2011 5:12 PM

Restore spfile from rman backup ---- error.

Hi,
I am trying to execute recovery on new machine ...
I have done the following steps..
I have one database as ora10g2 as peroduction database on one machine as hosta
I have created a catalog on another machine cora10g2 (hostb)
I have taken a full backup from hosta as per following ...
the following command execute from hosta machine.
$ rman target sys/<passwd>@ora10g2 catalog rman/rman@cora10g2 ...
Backup completed ...
Now I am trying to restore this backup on hostb machine where i have already rman catlog database ..
I have done the following setting ...on host b
set oracle_sid=DUP
and execute following command ...
rman target / catalog rman/rman@cora10g2
RMAN> set dbid 2760732370
executing command: SET DBID
database name is "BAAN10G2" and DBID is 2760732370
RMAN>
RMAN>
RMAN> startup force nomount ;
startup failed: ORA-01078: failure in processing system parameters
LRM-00109: could not open parameter file '/oracle/dbs/baan10g2/dbs/initbaan10g2.ora'
starting Oracle instance without parameter file for retrival of spfile
Oracle instance started
Total System Global Area 159383552 bytes
Fixed Size 1977112 bytes
Variable Size 67114216 bytes
Database Buffers 83886080 bytes
Redo Buffers 6406144 bytes
RMAN>
RMAN>
RMAN>
RMAN> show all ;
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK;
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/rman/backup/control/cntrl_%F';
CONFIGURE DEVICE TYPE DISK PARALLELISM 4 BACKUP TYPE TO BACKUPSET;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/baanora3/rman/ora10g2/bkup_db_%d_s%s_P%p_t%t' MAXPIECESIZE 1024;
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
RMAN>
RMAN>
RMAN> list backup of spfile ;
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
2420 Full 7.33M DISK 00:00:01 14-JUN-07
BP Key: 2426 Status: AVAILABLE Compressed: NO Tag: TAG20070614T182935
Piece Name: /rman/backup/control/cntrl_c-2760732370-20070614-00
SPFILE Included: Modification time: 14-JUN-07
BS Key Type LV Size Device Type Elapsed Time Completion Time
2509 Full 7.33M DISK 00:00:01 15-JUN-07
BP Key: 2515 Status: AVAILABLE Compressed: NO Tag: TAG20070615T130416
Piece Name: /rman/backup/control/cntrl_c-2760732370-20070615-00
SPFILE Included: Modification time: 15-JUN-07
BS Key Type LV Size Device Type Elapsed Time Completion Time
2694 Full 7.33M DISK 00:00:01 15-JUN-07
BP Key: 2739 Status: AVAILABLE Compressed: NO Tag: TAG20070615T131703
Piece Name: /rman/backup/control/cntrl_c-2760732370-20070615-01
SPFILE Included: Modification time: 15-JUN-07
BS Key Type LV Size Device Type Elapsed Time Completion Time
2760 Full 80.00K DISK 00:00:01 15-JUN-07
BP Key: 2763 Status: AVAILABLE Compressed: NO Tag: TAG20070615T163437
Piece Name: /rman/spfile/spfile.ora
SPFILE Included: Modification time: 15-JUN-07
BS Key Type LV Size Device Type Elapsed Time Completion Time
2769 Full 7.33M DISK 00:00:02 15-JUN-07
BP Key: 2771 Status: AVAILABLE Compressed: NO Tag: TAG20070615T163441
Piece Name: /rman/backup/control/cntrl_c-2760732370-20070615-02
SPFILE Included: Modification time: 15-JUN-07
RMAN>
RMAN>
RMAN> restore spfile from autobackup ;
Starting restore at 19-JUN-07
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=36 devtype=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: sid=35 devtype=DISK
allocated channel: ORA_DISK_3
channel ORA_DISK_3: sid=34 devtype=DISK
allocated channel: ORA_DISK_4
channel ORA_DISK_4: sid=33 devtype=DISK
channel ORA_DISK_1: looking for autobackup on day: 20070619
channel ORA_DISK_1: looking for autobackup on day: 20070618
channel ORA_DISK_1: looking for autobackup on day: 20070617
channel ORA_DISK_1: looking for autobackup on day: 20070616
channel ORA_DISK_1: looking for autobackup on day: 20070615
channel ORA_DISK_1: looking for autobackup on day: 20070614
channel ORA_DISK_1: looking for autobackup on day: 20070613
channel ORA_DISK_1: no autobackup in 7 days found
channel ORA_DISK_2: looking for autobackup on day: 20070619
channel ORA_DISK_2: looking for autobackup on day: 20070618
channel ORA_DISK_2: looking for autobackup on day: 20070617
channel ORA_DISK_2: looking for autobackup on day: 20070616
channel ORA_DISK_2: looking for autobackup on day: 20070615
channel ORA_DISK_2: looking for autobackup on day: 20070614
channel ORA_DISK_2: looking for autobackup on day: 20070613
channel ORA_DISK_2: no autobackup in 7 days found
channel ORA_DISK_3: looking for autobackup on day: 20070619
channel ORA_DISK_3: looking for autobackup on day: 20070618
channel ORA_DISK_3: looking for autobackup on day: 20070617
channel ORA_DISK_3: looking for autobackup on day: 20070616
channel ORA_DISK_3: looking for autobackup on day: 20070615
channel ORA_DISK_3: looking for autobackup on day: 20070614
channel ORA_DISK_3: looking for autobackup on day: 20070613
channel ORA_DISK_3: no autobackup in 7 days found
channel ORA_DISK_4: looking for autobackup on day: 20070619
channel ORA_DISK_4: looking for autobackup on day: 20070618
channel ORA_DISK_4: looking for autobackup on day: 20070617
channel ORA_DISK_4: looking for autobackup on day: 20070616
channel ORA_DISK_4: looking for autobackup on day: 20070615
channel ORA_DISK_4: looking for autobackup on day: 20070614
channel ORA_DISK_4: looking for autobackup on day: 20070613
channel ORA_DISK_4: no autobackup in 7 days found
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 06/19/2007 18:00:13
RMAN-06172: no autobackup found or specified handle is not a valid copy or piece
RMAN>
I am not able to restore spfile from rman backup ;;;

Hi,
I would like to know few things
1. How are you setting the db_name ? you can set db_id at RMAN, how are you setting the db_name ?
2. Do you have any default init file at default location ? if yes, is the db_name parameter set correctly in that file ?
Since spfile is yet to be restored, you must set the db_name parameter correctly before you start spfile restore.This can be done with init file at default location which can even contain just one paremeter i.e db_name.

Undo tablespace recovery from RMAN backup

Hi,
Lets's assume we have RMAN backup and archivelog backups, and now
my undo tablespace's disk crashed ,how can i recover?
Can i recover while database is up?
Thanks,
Kumar.

to recover UNDO tablespace from RMAN backup you must shutdown the database and start it in the MOUNT state to recover the missing files as follows
rman target /
RUN
STARTUP MOUNT;
ALLOCATE CHANNEL ch3 TYPE Disk;
RESTORE datafile 'c:\u01\prod3\undo01.dbf';
RECOVER datafile 'c:\u01\prod3\undo01.dbf';
ALTER DATABASE OPEN;
RELEASE CHANNEL ch3;
hope this will help you

Completeness of Prerequisites for Recovering Tables for PDBs from RMAN Backups

Could you verify the completeness of following prerequisities on pag. 441 of the "Backup and Recovery User's Guide 12c Release 1 (12.1) E17630-14"
Prerequisites for Recovering Tables and Table Partitions from RMAN Backups
■ The target database must be in read-write mode.
■ The target database must be in ARCHIVELOG mode.
■ You must have RMAN backups of the tables or table partitions as they existed at the point in time to which you want recover these objects.
■ To recover single table partitions, the COMPATIBLE initialization parameter for target database must be set to 11.1.0 or higher.
According to my test Database administrator workshop: How to recover a table in a pluggable database from a backup
those prerequisities are valid for CDBs or non-CBDs, but if you want to recover tables or table partitions in PDBs a different prerequisite is needed.
Indeed if you have a backup of only the pluggable database including the missing table (the third prerequisite above), but you don't have any backup of the container database the command...
recover table ... of pluggable database ... until scn ... auxiliary destination ...
will fail with the following errors:
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 02/12/2014 12:22:18
RMAN-03015: error occurred in stored script Memory Script
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 3 found to restore
RMAN-06023: no backup or copy of datafile 4 found to restore
RMAN-06023: no backup or copy of datafile 1 found to restore
So to recover table in PDBs you must have also the RMAN backups of the CDB or in the opposite way it's not sufficient to have only the backups of the pluggable database, because during the creation of the auxiliary database the SYS, SYSAUX and the UNDO tablespace are required.
Regards,
MarcoV

Hi,
Before dropping a DB we had taken an RMAN backup.I hope you were in mount mode.
Will RMAN automatically recognize the FORMAT of the backup piece and restore ?No it won't.
First you have to restore a controlfile in nomount mode with:
restore controlfile from '/u04/backup/rmanbkp /02mo9fnc_1_1';
and do alter database mount.
Than you have to run "catalog start with '/u04/backup/rmanbkp'; " so the instance now knows where to find the pieces.
Now you can run a restore database command.
Than open the database with resetlogs.
Regards,
Tycho

Can not recover table from rman backup

For testing I want to recover deleted table from rman backup.
I have make vm of oracle 11g. the following step i have applied but could not recover the table.
rman> backup database ;
On sqlplus create login as scott/tiger
create table scott.emp1(col1 varchar2(10));
insert into emp1(col1) value('Yasir ') ;
commit ;
select * from emp1 ;
it shows me one row successfully.
Now i have login the sys as sysdba
sqlplus> alter system switch logfile ;
after this i have drop the table .
Now to recover the table i have restored database on same vm.
rman>restore database ;
rman> recover database ;
rman> alter database open ;
on sqlplus i have issued
sqlplus> select * from scott.emp1 ;
table or view does not exist.
any help how to recover the deleted table from rman backup

Hi,
Check this test case
SQL> create table TEST2 as select * from emp;
Table created.
SQL> select count(*) from TEST2;
COUNT(*)
15
SQL> select TO_CHAR(SYSDATE,'DD-MON-YYYY HH24:MI:SS') from dual;
TO_CHAR(SYSDATE,'DD-
10-SEP-2013 10:57:05
SQL> alter system switch logfile;
System altered.
SQL> drop table TEST2 purge;
Table dropped.
SQL> shu immediate
[oracle@vnode MYSHELL]$ rman target /
Recovery Manager: Release 11.2.0.2.0 - Production on Tue Sep 10 10:58:39 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: DDTEST (DBID=1667776968, not open)
RMAN> run{
set until time "to_date('2013 Sep 10 10:57','yyyy mon dd hh24:mi')";
restore database;
recover database;
alter database open resetlogs;
}2> 3> 4> 5> 6>
media recovery complete, elapsed time: 00:00:02
Finished recover at 10-SEP-13
database opened
RMAN> exit
SQL> set lin 200 pages 100
SQL> select count(*) from test2;
COUNT(*)
15
HTH

How to estimate recovery time from rman backup

how to estimate recovery time from rman backup?
The database is of size 800GB.
the approximate time to backup is 8- 10 hours.

"Recovery time" is : RESTORE DATABASE time + RECOVER DATABASE time.
RESTORE can be done
a. in parallel with multiple channels if your backup was created as multiple backupsets
b. using incremental backups
c. whether the backups are on
i. disk
ii. tape
Alternatively, if you have a Recovery Area with an Incrementally Update backup of the database, you can SWITCH DATABASE almost immediately
RECOVER depends on
a. how many archivelogs (in terms of size, not necessarily number) need to be applied
-- this depends on
i. transaction volume
ii. the "freshness" of the backups (how recent the backups are)
b. whether required archivelogs are available on disk (which can be the case if the database backup itself is a very recent backup and archivelogs since then haven't been deleted {whether they have been backed up or not}) OR whether they need to be restored from
i. disk backup
ii. tape backup

How can I extract photos from my backup (5000+ photos) for free?

How can I extract photos from my backup (5000+ photos) for free?

eyal123 wrote:
How can I extract photos from my backup (5000+ photos) for free?
You cannot.
Why are you opposed to paying for some software to help do what you want?
You can restore the backup to your iPhone then sync the photos to your computer.

Extract the single archivelogfile from RMAN backup

Hi,
Can anyone tell me how to extract the single archivelogfile from RMAN which taken on primary database.
This archivelogfile is required for recovering the standby database.
Oracle version is 10.2.0
Thanks in advacne.......

user1813632 wrote:
Hi,
Can anyone tell me how to extract the single archivelogfile from RMAN which taken on primary database.
This archivelogfile is required for recovering the standby database.
Oracle version is 10.2.0
Thanks in advacne.......Why you do not want searching in google or referring documentation?
If you have backup of archivelogs then you can restore archivelogs(one or more) using below command
rman>restore archivelog from sequence 20 until sequence 21

Step By step guide to recover lost datafiles from RMAN

Hi All
I am new to RMAN recovery.
I tried searching internet but I cannot find the detail steps for "How to restore datafile using RMAN when we have backup on tape and How to then apply archive logs" .
Can anyone please explain the steps .
I will really appreciate that.
Thanks

Thanks All I really appreciate your help :)
So as far as I understand here is my scenario and here are the steps I will follow please correct me if I am wrong.
I have last night backup of all datafiles and archivelog files on tape.
I lost one of datafile in morning.
Here are the steps I will perform to recover datafile
Restore the backup(including archive files) from tape to OS directory.
Mount the database
RMAN> run{
restore datafile 6;
RMAN > recover datafile 6;
RMAN> alter database open;
The RMAN will apply all the archivelog file and datafile will be available again.
I also have some additional question:
1) do I have to take datafile offline?
2) are these steps same for tablespace restore ? Do i have to take tablespace offline?
3) How will I confirm if all the archivelogs were applied to data file and data is upto date?
Thanks

Unable to restore and recover my Database from RMAN Backup

Dear All,
Iam practicing RMAN in Windows environment.
My configurations are
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION ON; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'F:\Backup\%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO 'E:\ORACLE\DATABASE\SNCFORCL.ORA';
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT 'F:\Backup\%U.bak';
Then i took the RMAN backup, now iam shutdown my DB and removed one logfile..
then i tried to startup the DB but it is saying
ORA-00313: open failed for members of log group 3 of thread 1
ORA-00312: online log 3 thread 1: 'E:\ORADATA\ORCL\REDO03.LOG'
So i tried to restore the Database with my rman backup
RMAN> restore database;
But i am unable to restore my logfile in the Datafiles location where as all other datafiles are restored but redo logfiles are not restored.
So, i am unable to recover my DB
Please tell me whether i am doing any mistake, what is the solution for my problem.
Thanks in advance
Mahi

All you restored was your datafiles.
Now issue recover database and that will apply the archive logs.
This is in the oracle documentation.
"You must restore backups of these archived logs for recovery to proceed. You can restore either to the default or nondefault location. If you do not have backups, then you must performing incomplete recovery up to an SCN before the first missing redo log and open RESETLOGS."
http://download.oracle.com/docs/cd/B28359_01/backup.111/b28270/osrecvry.htm
In this case after issuing restore database in RMAN, then issue this.
"Recover database"
It will then be an incomplete recovery. They should have been multiplexed. Did you restore your controlfile with this backup? You may have to issue an "Alter database open resetlogs;"

Standby database from RMAN backup

I have been assigned to create a standby database from our RMAN backups in a different machine, as this is my first attempt at recovering, I am struggling a bit. I would appreciate if someone can throw any light on what dumb mistakeI am doing here. I ahve absolutely no control over the back up script which is done by my vendor, but can do anything in the reocvery portion. I did try going through the documentaiton and other help available for the last 2 days.
Database : Oracle 10G R2
OS : Windows Server 2003
My backup script is
configure channel device type disk format 'J:\RMAN\RMAN_df_%U' maxpiecesize 2048M;
SQL "ALTER SYSTEM SWITCH LOGFILE";
SQL "ALTER SYSTEM SWITCH LOGFILE";
backup database;
SQL "ALTER SYSTEM SWITCH LOGFILE";
SQL "ALTER SYSTEM SWITCH LOGFILE";
backup current controlfile for standby FORMAT='J:\RMAN\RMAN_sc_%U';
For recovery of a standby database,
I have copied the the back up pieces and the archive logs to the standby server where I have just created an instance with the same name as production db.
set ORACLE_SID=NGINPROD
set dbid 820336652
STARTUP NOMOUNT
RESTORE STANDBY CONTROLFILE FROM 'I:\TEMP\RMAN_Backup\RMAN\RMAN_SC_2UMIUJM1_1_1';
CATALOG BACKUPPIECE 'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2RMIUIE4_1_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2RMIUIE4_2_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2RMIUIE4_3_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2RMIUIE4_4_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2RMIUIE4_5_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2RMIUIE4_6_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2RMIUIE4_7_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2SMIUJ88_1_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2SMIUJ88_2_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2SMIUJ88_3_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2SMIUJ88_4_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_DF_2TMIUJLN_1_1',
'I:\TEMP\RMAN_Backup\RMAN\RMAN_SC_2UMIUJM1_1_1';
RESTORE DATABASE;
Till this step I do not encounter any issues, but when i try to recover the database I am hit with the below error.
RMAN> recover database;
Starting recover at 16-AUG-11
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
starting media recovery
unable to find archive log
archive log thread=1 sequence=253340
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 08/16/2011 09:31:57
RMAN-06054: media recovery requesting unknown log: thread 1 seq 253340 lowscn 4696173517
------------------------------------------------------------------------------------------------------------------------------------------------

Here's the standard dcoumentation on the procedure :
http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/rcmbackp.htm#i636377
Appendix "F Creating a Standby Database with Recovery Manager" of the "Oracle® Data Guard Concepts and Administration" guide.
I don't see ArchiveLog backups being done by the vendor's script. How do you backup the ArchiveLogs ?
In your post you state that you have copied the ArchiveLogs. Are they copied to the same log_archive_dest location ? RMAN needs to be "aware" of them. You can use the "CATALOG" command in RMAN to register them into the controlfile.
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14194/rcmsynta011.htm#sthref230
A Standby Database uses a Standby Controlfile which is created from the Primary (with the "ALTER DATABASE CREATE STANDBY CONTROLFILE AS 'locaion';" command) and then copied over to the Standby server.
Hemant K Chitale

Problem in recovery from RMAN backup in case of disk failure

Hi
I have Oracle 9.2.0.1.0 on Windows. Full Hot RMAN backup of database is scheduled on daily basis. I am taking backup on disks. And then i do manually copy them on tapes. If any disk failure occurs than can i recover database completely in this scenario. If tried restoing that backup on different machine as given below
set ORACLE_SID=<name>
rman target sys/<pwd>@ORACLE_SID nocatalog
startup nomount
restore spfile
create pfile from spfile
startup nomount pfile
alter database mount
restore database
Everything worked fine till above steps. Now i will execute last step.
recover database
Here it gives error:-RMAN-06054: media recovery requesting unknown log: thread 1 scn 264750
Still i typed
alter database open resetlogs
Now i can open my database, But is it recovered completely? Or there is loss of some data? Why it is giving this error?
Thanks in advance. Waiting for reply.

I can understand the confusion with this whole concept.
What I meant by all archivelogs is all the archivelogs that were backed up with the backup itself. Again, it is essential to ensure that you archive the current redo log AFTER the backup is performed and then back those archivelogs too. Good thing is, RMAN will take care of this for you if you backup the archivelogs with the BACKUP DATABASE command and/or backup the archivelogs AFTER you run the BACKUP DATABASE command.
Once you've mounted the controlfile and CATALOG the archivelogs, you can go into SQL*Plus and issue the following query:
select SEQUENCE#, FIRST_CHANGE#, NEXT_CHANGE# from v$archived_log
order by FIRST_TIME;This will tell you what archivelog is the latest. Logs generated during the backup may also provide the necessary information. Performing Disaster Recovery should help to understand the full process.
The ONLINELOG directory in FRA is only populated if you've configured your redo logs to be stored there. However, you are on 9i...right? If so 9i doesn't utilize a FRA.
HTH
Edited by: ebrian on Oct 3, 2008 1:08 PM

Recovery from RMAN backup.

Hi ,
i have rman level 0 backup on sunday, and level 1 backup monday to friday.
if i want to recover from these backups until friday , which archivelogs will be required?
To be more specific i require archivelogs of only friday or all archivelogs from sunday through friday?
Thanks
Rajkumar

user615800 wrote:
Hi ,
i have rman level 0 backup on sunday, and level 1 backup monday to friday.
if i want to recover from these backups until friday , which archivelogs will be required?
To be more specific i require archivelogs of only friday or all archivelogs from sunday through friday?
Thanks
RajkumarOnly require fridays archivelogs

Extract datafile from rman backup

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