Restoring Oracle Backup
Jul 12, 2011
My boss gave me a 1GB Oracle .dmp file, and I told him that I could handle it easily (ie, install Oracle on a machine, import the .dmp file, and export / move it onto a MS SQL server).
Oracle has turned out to be far more difficult to learn than I originally thought, however. Even after a week of reading search results and watching YouTube videos, I still feel completely in the dark.
Restoring an Oracle backup? (Once the backup is restored, that should be it - I have an ETL tool (Scribe Insight) for reading an Oracle database and moving it to SQL. I can use GoToMeeting for screen sharing.)
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Aug 7, 2012
I've read a lot about the different types of backup available with Oracle (hot and cold backup). However, I was thinking of a different way of performing this task. I'm currently using Windows Server 2008 R2 and Oracle 11g Standard Edition. I'd like to schedule an entire backup of my server via the utility "Windows Server Backup" (available for free).That way, I could recover my entire server with all the programs and files in case the latter crashes.I'm wondering if this solution could be used as a way of backing up (and recovering) the Oracle database. Should I still set up a regular hot backup with the Archivelog mode enabled in case some operations/transactions were being done at the time of the crash (for the data integrity)?
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Jul 11, 2012
I want to ask if I restore a control file from backup of say day2 and I recover till day1 using RMAN script, then what will be the state of my database? I mean day2 control file may be having SCN-Day2, and I am instructing RMAN to recover till past point in time that is SCN-Day1.
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Mar 8, 2013
Every Sunday in the month - Full Backup
RMAN > BACKUP DATABASE;
Rest of the days - Incremental Level 1 Backup.
RMAN> BACKUP INCREMENTAL LEVEL 1 DATABASE
Day of Month Backup Taken Backup Contents
1st Full Backup All files as of the 1st - Sunday
2nd Incremental #1 Files updates between the 1st and 2nd - Monday
3rd Incremental #2 Files updates between the 2nd and 3rd - Tuesday
4th Incremental #3 Files updates between the 3rd and 4th - Wednesday
5th Incremental #4 Files updates between the 4th and 5th - Thrusday
6th Incremental #6 Files updates between the 5th and 6th - Friday
7th Incremental #7 Files updates between the 6th and 7th - Saturday
8th Full Backup #8 Files updates from 1st,2nd to 7th - Sunday
9th Incremental #9 Files updates between the 8th and 9th _ Monday
10th Incremental #10Files updates between the 9th and 10th - Tuesday
11th Incremental #11 Files updates between the 10th and 11th - Wednesday
12th Incremental #12 Files updates between the 11th and 12th - Thrusday
13th Incremental #13 Files updates between the 12th and 13th - Friday
14th Incremental #14 Files updates between the 13th and 14th - Saturday
15th Full Backup CRASHES - NOT COMPLETED - Sunday
I would need to restore now from #8 ( full backup ) and #9 to #14 ( incremental backup )
Tell me the "restore command" to achieve the output?
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Dec 8, 2011
Just inherited an 8i DB that is being backed up with then common techniques used prior to RMAN. The tablespace is placed in backup mode, an OS copy of the file is taken, the tablespace is returned online, and the process is repeated until all files captured in an usable state.
It is running in archive log mode on a Linux OS and daily backups are initiated through crontab as well as jobs to purge the redo logs after backup. Backup storage recently filled - working since 2004. Not bad!
I have documented procedures for using these files with an operational 8i DB. Will I be able to restore these files directly into an 11g environment? What is the implication of 8i having DBA managed "RBS" (roll back segments) vs. 11g?
I am thinking I will have to build both versions.
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Aug 6, 2012
I just duplicate my PRODUCTION database to TEST database (11.2.0.1 both) on windows 7.
I just create a backup from PRODUCTION:
RMAN> backup full database format ='C:Usersmy_usermiBBDDflash_recovery_are aTESTdatabase_%U';and controlfile backup:
RMAN> backup current controlfile format='C:Usersmy_usermiBBDDflash_recover y_areaTESTCONTROL_FILE_%U';now i'm trying to restore this backup into TEST with this script:
RMAN
CONNECT TARGET /
STARTUP NOMOUNT;
SET DBID 486238190; #DBID of TEST database
RUN
[Code]....
but i'm having a similar error when i tried to duplicate both databases ( post -->Error duplicate databases fallo de la recuperaci¾n del medio fÝsico
canal liberado: c1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: fallo del comando recover en 08/06/2012 11:53:06
ORA-00283: recovery session canceled due to errors
RMAN-11003: fallo al analizar/ejecutar la sentencia SQL: alter database recover
if needed start until cancel using backup controlfile
ORA-00283: recovery session canceled due to errors
ORA-01110: data file 1: 'C:USERSmy_userMIBBDDORADATAPRODUCTIONSYSTEM01. D BF'
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1: 'C:USERSmy_userMIBBDDORADATAPRODUCTIONSYSTEM01.D BF'
Controlfile was restored correctly. what am I doing wrong?
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Mar 31, 2011
i am trying to restore database using rman backup on same machine using command
RMAN> run {
2> set until sequence 23;
3> restore database;
4> recover database;
5> }
but it will give me error.
RMAN-00571: =======================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===========
RMAN-00571: =======================================================
RMAN-03002: failure of restore command at 03/31/2011 19:18:11
[code]....
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May 10, 2011
I have a live server on which Oracle 10g Database is running. We take full RMAN Backups everyday. Now we want to restore the RMAN Backup file from the Live server to another machine (which is going to be a test system). I want to restore the latest RMAN backup on the test machine (which is not on network).
When I copy the RMAN backup set in the flash recovery area of the test machine and then use "list backup", the backup set is not listed. I also tried "crosscheck backup" and then "list backup" but still the backup set does not appear. how can I register the backup set from live server into test machine and then restore it.
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Nov 7, 2013
How we can use RMAN backup to restore oracle database when the RMAN backup pushed to tape already and being a OLD backup ( before retention policy date).Just to elaborate a more.. Say my retention policy is 3 days. I want to restore from a old backup like 30 days old.So surely the requesting backup is behind retention date and has been pushed to tape.
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Aug 3, 2011
Im trying to restore my spfile and (later controlfile) to a new location:
RMAN> connect catalog rman11cv/pwd@metarep
Connected...
RMAN> connect target
ansluten till msldatabasen: DATABASE (DBID=510270843)
RMAN> run
2> {
3> allocate channel ch1 type 'sbt_tape'
4> PARMS="BLKSIZE=262144,ENV=(CV_mmsApiVsn=2,CV_channelPar=ch1)"
5> TRACE 0;
6> Restore spfile to pfile 'y:
estorepfile.ora';
7> }
tilldelad kanal: ch1
kanal ch1: sid=537 devtype=SBT_TAPE
kanal ch1: CommVault Systems for Oracle: Version 9.0.0(BUILD84)
Starting restore at 2011-08-03
frigjord kanal: ch1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: restore-command failed at 08/03/2011 11:39:26
ORA-27191: sbtinfo2 returned an error
The spfile and control file exists.
RMAN>list backup of spfile
BS-nyckel Typ N Storlek Enhetstyp Tidsσtgσng Slutf÷randetid
------- ---- -- ---------- ----------- ------------ --------------
736698 Full 256.00K SBT_TAPE 00:00:04 2011-08-02
BP-nyckel: 736705 Status: AVAILABLE Komprimerad: NO Tagg: TAG2011080
2T181240
Handtag: dkmj0i8p_1_1 Media: V_73870
SPFILE har inkluderats: Σndringstid: 2011-08-02
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Sep 4, 2013
I have an issue with restoring a RMAN backup that i have with me to a new database instance. What i have with me are: 1. Backup of SPFile.
(O1_MF_NCNNF_CTLFILE_BU_92DVGYO2_.BKP)2. Backup of Control file (O1_MF_NNSNF_SPFILE_BU_92DVGW9H_.BKP)3. Full database backup (O1_MF_NNSNF_FULLPROD_BU_92DVGW9H_.BKP)
I have received these files from a customer environment and I need to restore these to a new database instance in a local machine. I have given a attempt as follows (in Oracle 10g): 1, Created a new database instance (Test75) using Oracle Database Configuration Assistant2. SET ORACLE_SID = Test753. Connected to this instance using RMAN4. Tried to restore the SPFILE from the received BKP file.I am getting errors and cannot proceed. I am not sure whether I am executing the correct steps.
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Oct 9, 2012
I have One Production and one logical standby database . Due to tape problem we are unable to take backups of primary . And due to business , we cannot take back up on disk in hot period(Bank database ) .
If i take logical standby database backup(level 0 ) using RMAN , then will i be able to restore it on production dtbs (In case Production down) ? . Logical standby is in sync with primary .
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Apr 29, 2011
[URL]......
The oracle documents mentions this file
$ORACLE_HOME/.patch_storage/<patch-id_timestamp>/restore.sh
But what I find in that directory is
$ORACLE_HOME/.patch_storage/<patch-id_timestamp>/rolback.sh
Where is the restore.sh file that the document is talking about.
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Jun 27, 2012
I was trying to delete the database in the test server. When i was deleting listener was already stopped, i continued deleting using dbca, it shown me some alert that datafiles cant be deleted because system could't find database, since listner was stopped so only service was deleted(the one showing in the windows administrator toolsservicesOracleServiceTEST).
All the datafile parameter files are still there. How can i delete the datafiles and parameter files belongs to that database or how to create the deleted service, so that i will start the listener and do the complete deleting of the database.
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Sep 27, 2012
My standby got corrupted and I need to restore from Primary database. As it is already setup , no need to configure listener and tnsnames.
At Primary site
==========
1. After shutting down the primary database.
2. copying all .dbf and log files. (need to query v$datafile and v$logfile)
3. Copying archive logs. (not sure about this step)
4. Again restart, create control file for standby database.
5. Restart primary database.
Standby
=====
1. After changing the location of control file on standby parameter file (initSTANDBYDB.ora)
2. Startup nomount pfile='/pfile/location'
3. Mount the standby database.
4. Putting database in MRM mode.
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May 2, 2011
I have facing problem while taking backup on Windows 7 client of Oracle 11g R2 database. I have installed oracle 11gR2 for windows on windows 7 machine. I have created a directory like below in database.
On Database Server
SQL> create directory win_expdp_dir as 'd:expimp';
Directory created.
SQL> grant read, write on directory win_expdp_dir to lab;
Grant succeeded.
On Windows 7 machine (client machine)
D:appproduct11.2.0client_1BIN>expdp lab/lab@wbdata.wbh-db11g DIRECTORY=win_expdp_dir DUMPFILE=lab.dmp LOGFILE=lab.log
Export: Release 11.2.0.1.0 - Production on Mon May 2 12:51:44 2011
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORA-39002: invalid operation
ORA-39070: Unable to open the log file.
I have give all sharing rights on d:expimp directory. My main question is why i'm getting this error. Is there any thing missing in setup. how to take export on windows 7 client.
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Nov 11, 2011
I set 'maxopenfiles 4' when allocating channel to sbt in my products env, I got 2 backup pieces in one backup set because that tablespace has 7 datafiles. Other configuration is kept as default, such as no maxsize, no MAXPIECESIZE, and etc setting.
I read document from Oracle. It says:"By default a backup set contains one backup piece. To restrict the size of each backup piece, specify the MAXPIECESIZE option of the CONFIGURE CHANNEL or ALLOCATE CHANNEL commands. " And also, maxopenfiles configure does not force another backup piece generated. So, why do I get another backup piece?
BTW, I tried this on another testing environment. I only get one backup piece even there are more than 2 times maxopnefiles datafiles.
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Aug 29, 2010
I want to use rman to restore all my control files, I just did a level 0 incremental backup and ran the following script.
rman <<EOF
connect target sys/sys@GOLD_AUX
connect catalog rman/rman@GOLD_CAT
RUN
{
STARTUP FORCE NOMOUNT;
RESTORE CONTROLFILE;
ALTER DATABASE MOUNT;
ALTER DATABASE OPEN RESETLOGS;
}
EOF
My control files seem to be put back in the correct spot and suggest a way I can restore only my control files and have everything in sync with my datafiles.
end of out from rman script
====================
channel ORA_DISK_1: restore complete, elapsed time: 00:00:04
output filename=/oracle/data/aux/control01.ctl
output filename=/oracle/data/aux/control02.ctl
output filename=/oracle/data/aux/control03.ctl
Finished restore at 29-AUG-10
[code]...
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Jan 17, 2013
SO....: Win 7 64bits
DB....: Oracle 11.2.0.3 EE 64 bits
In my notebook, i have 2 instances (orateste and ora11). They are all for testing purpose. I don't know what happened but, a problem in a partition of my SO made the Oracle software unavailable. I cannot start instance orateste. Even the windows service related to the instance have disappeared from services.msc. What i want to do is to restore only one tablespace from instance orateste to ora11. I have a full rman database backup from D-1.
1) Restore the entire database (orateste - 11.2.0.1) to ora11(11.2.0.3)?
2) Is there a way to restore only one tablespace, between instances and versions?
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Jul 31, 2012
I have the RMAN full database backup of oracle 10g (10.2.0.3) on Sun Solaris OS which i want to restore on oracle 11g (11.2.0.3) on Linux OS. The backup pieces was transferred to oracle 11g server manually in binary mode.
-rwxrwxr-x 1 mepc dba 36356096 Jul 16 14:49 snapcf_MEPC.f
-rwxrwxr-x 1 mepc dba 166028800 Jul 16 15:29 MEPC_full_backup_MEPC_nnnbkn9f_1_1
-rwxrwxr-x 1 mepc dba 169567744 Jul 16 15:29 MEPC_full_backup_MEPC_nmnbkn9f_1_1
-rwxrwxr-x 1 mepc dba 164813824 Jul 16 15:39 MEPC_full_backup_MEPC_nonbkn9f_1_1
-rwxrwxr-x 1 mepc dba 144025600 Jul 16 16:06 MEPC_full_backup_MEPC_nqnbkn9f_1_1
-rwxrwxr-x 1 mepc dba 168576512 Jul 16 16:09 MEPC_full_backup_MEPC_npnbkn9f_1_1
-rwxrwxr-x 1 mepc dba 168649216 Jul 16 17:33 MEPC_full_backup_MEPC_o5nbkpvv_1_1
[code]....
the backup is taken in above format. I know the ORACLE_SID and dbid of the database from which the backup has been taken. whenever i tried the following command
mepc@tcstctmatson:/mepc_backup/May22fullbkp$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Tue Jul 31 12:14:54 2012
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: MEPC (DBID=1595278680)
RMAN> shutdown;
using target database control file instead of recovery catalog
database closed
database dismounted
Oracle instance shut down
RMAN> startup nomount;
connected to target database (not started) Oracle instance started
Total System Global Area 1071333376 bytes
Fixed Size 1349732 bytes
Variable Size 620758940 bytes
Database Buffers 444596224 bytes
Redo Buffers 4628480 bytes
[code]....
the file is not corrupted as i checked the checksum on both the servers and it is same.how can i restore the RMAN oracle 10g backup in Oracle 11g.
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Nov 7, 2011
When you create a backup in SQL Server, whether the backup is on disk or on tape, SQL Server writes the letters TAPE to the first four bytes of the backup. Does Oracle write any specify value to the front of every backup, and if so, what are the first four bytes?
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May 23, 2012
what is %N determines in Oracle RMAN HOT Backup. In some documentation it says it gives you backup with respect to tablespace. Is it a version specific ..bcos when tried in above version it failed....
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May 24, 2012
I have a scenario like while taking the hot backup i forgot put end backup mode,at the same time one of user u1 updating some lacks of recordsinto the T1 table.at some time he wants rollback.and my redolog file size is very less.is it possible to rollback? if yes how?
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Jun 20, 2013
I'm testing out various RMAN restore/recovery scenarios for 10g R1. Took a full level-0 backup of one of our larger databases (16 tb) and I'm trying to restore the whole thing on another server. While the backup was running (for about a day & a half), a few datafiles were added. The backup completed fine, including "backup current controlfile;". Now my restore is failing with "RMAN-06023: no backup or copy of datafile xxxx found to restore", with reference to the 4 files that were added while the backup was in progress.
I guess if the datafiles were added after the backup had finished, we'd be fine because they'd be created during recovery with our archive logs (we have all of those).
I found some suggestions for first doing a "restore controlfile;" -- did that and it worked fine -- then mounting the database and creating the datafiles manually. I added that to my RMAN restore script and tried it, like so:
run {
allocate channel d4 type disk format '/BK01/dbX/stream1/df_%t_s%s_s%p' ;
sql "alter database create datafile ''/uXX/oradata/dbX/datafile_58.dbf''";
restore database ;
}
The datafiles were created successfully, and the restore began .. but then it failed with this:
creating datafile fno=4216 name=/uXX/oradata/dbX/datafile_58.dbf
...
RMAN-03002: failure of restore command at 06/20/2013 17:27:28
ORA-01119: error in creating database file '/uXX/oradata/dbX/datafile_58.dbf
ORA-27038: created file already exists
So RMAN seems to be telling me that if these 4 datafiles don't exist in the backupset, then RMAN won't automatically create them. But if I manually create them first, then RMAN will try to restore them and complain that they already exist. And for that matter, I would have expected that RMAN would be smart enough to detect that those 4 files were added while the backup was active, and just include them in the backup. Maybe there's something I needed to do to tell RMAN to do that?
This is just a test, so of course I can redo the backup from scratch and try again, but we have some pretty large databases which cannot be shut down for cold backups, so it's entirely possible this scenario could show up in a real disaster recovery. RMAN does such a good job of managing things.
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Feb 28, 2013
We are running 11.2.0.3.2.
In my catalog for the "source" database (rman target db), I have the backupsets for a full database backup ended at Feb. 7, 03:43:37. These are online backups. So, there are archived redo logs being generated while it runs and the following archived redo logs finished at Feb. 7, 04:00:24.
We duplicate databases all the time. So, this is not a new concept for us. The one thing that has changed is that we now back up to disk (using the flashback recovery area) and then later on, initiate a backup to tape. Prior to this go-live, we did all of our backups directly to tape. The catalog does not seem confused. It knows it needs to go to tape because it's beyond the retention for disk backups. The only problem is that it is going to the backup prior to the backupset I want, only for a couple of files.
In the past, when all went directly to tape, we would do a set until time 'Feb. 7, 03:43:37' and it would automatically restore the backupset that finished then and apply archived redo logs as necessary to make a consistent copy. Now, if I use the same model, it's going to a backup set from the prior date for 3 particular files. If I change the time to when the archived redo logs ended their backup, 04:00, it still goes back to the day before, but only for 2 files.
I can list a backup of each specific file and see that the file is in the backupset for which I expect RMAN to pull. How can I figure out a date/time to go back to if not using the method of reviewing the catalog entries and timestamps?
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Oct 18, 2012
understanding rman scn based Backup Algorithm .. In SCN based backup do rman generate backup from archivelogs ???
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Jan 24, 2011
I have 2 seperate rman backup one backup is of only datafile ,spfile and controlfile which i am able to restore and recover without any problem say bkp1 taken at 10 am
other set of backup is of only archive log files of same day but later time than datafile backup say bkp2 taken at 8pm...if i restore and recover bkp1 and try to restore bkp2 it gives error datafile exist (possibly due to fact both backup have control file)
if i just restore bkp1 and try to restore bkp2 so that i can do one recover at time
it gives error datafile permission issue (possibly due to fact both backup have control file)
I want to restore database upto 8pm time how can i use both bkp1 and bkp2 to do it(restore datafiles and apply all archive logs on it)
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Dec 24, 2012
One of my databases which is running on exadata x2-2 , has been restored to non-exadata machine in order to test few things. I had a sub-partition table in the exadata , compressed for query high. test machine (NOT EXADATA) , after uncompressing this subpartiton tables i am getting the following err message :
ORA-64307: hybrid columnar compression is not supported for tablespaces on this storage type I have executed the following commands :
alter table crm.cm_ncd modify partition P01_CM_NCD nocompress;
alter table crm.cm_ncd modify partition P02_CM_NCD nocompress;
alter table crm.cm_ncd modify partition P03_CM_NCD nocompress;
[code]...
ERROR at line 1:
ORA-12801: error signaled in parallel query server P005
ORA-64307: hybrid columnar compression is not supported for tablespaces on this storage type If all the partitions are uncompressed why i am getting this error message ?
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Sep 24, 2009
I am currently reading some articles/documents to backup and restore Oracle databases. I found that Oracle databases can be backed either up by RMAN('Recovery Manager' tool supplied by oracle) or doing a "Hot Backup" (bring the database to backup mode and then copying the Physical datafile by issuing operating system "copy" command). The above methods do not meet my needs. I want to backup Orcale databases via my own application and I use C++. Hence, I am searching for an API that can be used with C++ to backup the Oracle databases.
Is there any API to backup the Oracle database that we can integrate with our own application program? [Like , To backup SQL Server Database , we can use VDI(virtual Device Interface) API to backup the SQL server database]
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Jul 18, 2011
way to backup Oracle Apps R12 in Linux.
for Oracle DB tier I use RMAN.
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