Control file and Rman

Hello,
I have 2 disctinct servers.
oracle 10gr2 in each one with the same linux red hat 4 version.
the second server is just to TEST if the backup create with the first one, works fine.
So the install in each server is exactlly the same...
same files, same path etc.
Scenario:
1 from srv one I execute a full backup with RMAN
2 I copy the file in server 2
3 I move a datafile in order to create an error
4 I test : restore database in server 2...
I get the followin error:
RMAN-03002: failure of restore command at 02/24/2008 21:15:37
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 8 found to restore
and this command return no result:
RMAN> list backupset;
RMAN>
the file created with server 1 have been copied in the declared path into server 2...
I have execute a crosscheck backup too
RMAN> crosscheck backup;
using channel ORA_DISK_1
RMAN>
Must I copy the controle file too? in this case will I have an inconsistent error?
Thanks to help
Cheers

You must have
controlfile autobackup on
(If you don't change the format it will be in $ORACLE_HOME/dbs, and the format will be c-<database id>-<yyyymmdd>_<piece>.ctl).
You must copy that file, as it has information about your most recent backup, the backup you just made.
Hth
Sybrand Bakker
Senior Oracle DBA

Similar Messages

Control File and SPFILE Autobackup command struck

O.S Version:
Linux Version "Red Hat Enterprise Linux Server release 6.2 (Santiago)
Linux version 2.6.32-220.13.1.el6.x86_64 ([email protected]) (gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC) ) #1 SMP Thu Mar 29 11:46:40 EDT 2012
2.6.18-308.16.1.el5 x86_64
Tape Archiver : HP Data Protector
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
Problem :
In one of our environment, OEM grid 11g scheduled Level 0 backup struck at the Control File and SPFILE Autobackup.
RMAN Script:
run {
2> backup format '<%d_%s:%t:%p:%f>.df' incremental level 0 cumulative database;
3> sql 'alter system archive log current';
4> backup format '<%d_%s:%t:%p>.al' archivelog all not backed up;
5> }
RMAN Configuration
RMAN> show all;
RMAN configuration parameters for database with db_unique_name TestDB are:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 45 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO 'SBT_TAPE';
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE 'SBT_TAPE' TO 'TestDB_%F';
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'TestDB_%F';
CONFIGURE DEVICE TYPE 'SBT_TAPE' PARALLELISM 4 BACKUP TYPE TO BACKUPSET;
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE 'SBT_TAPE' TO 1;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1;
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE 'SBT_TAPE' TO 1;
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1;
CONFIGURE CHANNEL DEVICE TYPE 'SBT_TAPE' PARMS 'SBT_LIBRARY=/opt/omni/lib/libob2oracle8_64bit.so,ENV=(OB2BARTYPE=Oracle8,OB2APPNAME=TestDB,OB2BARLIST=Siv_ORA_TESTSrvr1_TestDB_DB,OB2BARHOSTNAME=TESTSrvr1)';
CONFIGURE MAXSETSIZE TO UNLIMITED;
CONFIGURE ENCRYPTION FOR DATABASE OFF;
CONFIGURE ENCRYPTION ALGORITHM 'AES128';
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+DG_TestDB_UAT_DATA_01/TestDB/TEMPFILE/snapcf_TestDB.f';
RMAN Log:
1.    Backup started at 07-SEP-2013 07:09:46
     Finished backup at 07-SEP-2013 07:16:38
Wherein the Control file backup started at 07-SEP-2013 07:16:38 failed at 09/07/2013 12:44:38. It kept struck for 5 Hours.
Starting backup at 07-SEP-2013 07:09:46
allocated channel: ORA_SBT_TAPE_1
channel ORA_SBT_TAPE_1: SID=250 instance=TestDB device type=SBT_TAPE
channel ORA_SBT_TAPE_1: Data Protector A.06.20/370
allocated channel: ORA_SBT_TAPE_2
Finished backup at 07-SEP-2013 07:16:38
Starting Control File and SPFILE Autobackup at 07-SEP-2013 07:16:38
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of Control File and SPFILE Autobackup command on ORA_SBT_TAPE_1 channel at 09/07/2013 12:44:38
ORA-19506: failed to create sequential file, name="TestDB_c-2078060264-20130907-ff", parms=""
ORA-27028: skgfqcre: sbtbackup returned error
ORA-19511: Error received from media manager layer, error text:
   Vendor specific error: Cannot find requested element ERR(-2)
ORACLE error from recovery catalog database: ORA-03113: end-of-file on communication channel
Process ID: 2045
Session ID: 89 Serial number: 36509
RMAN> delete noprompt archivelog all backed up 1 times to sbt;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of delete command at 09/07/2013 13:00:07
RMAN-06004: ORACLE error from recovery catalog database: ORA-03114: not connected to ORACLE
RMAN> **end-of-file**
Why does the RMAN Backup struck at Controlfile , SPFile autobackup?

Hello;
I believe the issue is caused by your media management software. You should contact your media management vendor.
Try the same operation to disk and I bet it works.
Best Regards
mseberg

In 10g can we dump control file and get SCN info.

Hi,
I have a question can any one help me on this.
In 9.2.0.5 we could dump the control file and get the SCN using the command :
alter session set events 'immediate trace name CONTROLF level 10';
In 10.1.0.4.0 the output of the dump has changed and we do not get the SCN. or any of the following information :
DATABASE ENTRY
CHECKPOINT PROGRESS RECORDS
EXTENDED DATABASE ENTRY
REDO THREAD RECORDS
LOG FILE RECORDS
DATA FILE RECORDS
RMAN CONFIGURATION RECORDS
LOG FILE HISTORY RECORDS
OFFLINE RANGE RECORDS
ARCHIVED LOG RECORDS
BACKUP SET RECORDS
BACKUP PIECE RECORDS
BACKUP DATAFILE RECORDS
Can I get similar output in 10g as 9i ?
with regards,
Dilip.

Hi.
What are you trying to achieve here? If you just want the current SCN, you can get it using one of these:
SQL> select current_scn from v$database;
CURRENT_SCN
8058824527
1 row selected.
SQL>or
SQL> select dbms_flashback.get_system_change_number from dual;
GET_SYSTEM_CHANGE_NUMBER
8079317404
1 row selected.
SQL>Cheers
Tim...

I can only backup the datafiles but not the control files and SPFiles

Hello, all,
I am using the Oracle 10g on a linux server which runs redhat 9. I want to backup the whole database to the disk, but not the flash recovery area. It is /rawdata. I will show how I configure the backup part in EM. Is there anything wrong?
1. the ARCHIVELOG is on
2. under Administration, in the All Initialization Parameters, I remove the string value of “log_archive_dest_1”. After that, I go to the SPFile and remove the string value of “log_archive_dest_1”
3. configure backup settings and policies. The Disk Backup Location field is set to /rawdata. Select Image Copy for Disk Backup type. Test Disk backup is successful.
4. go to Policy page. Select “Automatically backup the control file and server parameter file (SPFile) with every backup and database structural change.) input /rawdata into the filed: Autobackup Disk Location
Select “Optimize the whole database backup by skipping unchanged files such as read-only and offline datafiles that have been backed up”
Select “Retain backups that are necessary for a recovery to any time whin the specified number of days (point-in-time recovery)
Accept the default of 31days
5. go to Schedul Backup
6. select customized from the backup Strategy drop-down menu. Select the Whole Database
7. in the Options page, select “Full backup” in the Backup Type section. Select “Online Backup” in the Backup Mode section. Select “back up all archived logs on disk” in the Advanced section.
8. in the Setting page, select “Disk”
9. in the Schedule page, accept the default job name and description. Select Immediately to execute the job immediately.
10. just submit the job.
After several minutes, the job is failed while the Prebackup and Postbackup are succeeded. The log says:
Recovery Manager: Release 10.1.0.2.0 - Production
Copyright (c) 1995, 2004, Oracle. All rights reserved.
RMAN>
connected to target database: ORCL10G (DBID=770753237)
using target database controlfile instead of recovery catalog
RMAN>
Starting backup at 11-OCT-06
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=268 devtype=DISK
channel ORA_DISK_1: starting datafile copy
input datafile fno=00001 name=+DATADG/orcl10g/system01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-SYSTEM_FNO-1_68hvin50 tag=BACKUP_ORCL10G_000_101106111844 recid=108 stamp=603544772
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting datafile copy
input datafile fno=00003 name=+DATADG/orcl10g/sysaux01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-SYSAUX_FNO-3_69hvin6d tag=BACKUP_ORCL10G_000_101106111844 recid=109 stamp=603544813
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
input datafile fno=00005 name=+DATADG/orcl10g/example01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-EXAMPLE_FNO-5_6ahvin7g tag=BACKUP_ORCL10G_000_101106111844 recid=110 stamp=603544829
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:15
channel ORA_DISK_1: starting datafile copy
input datafile fno=00002 name=+DATADG/orcl10g/undotbs01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-UNDOTBS1_FNO-2_6bhvin7v tag=BACKUP_ORCL10G_000_101106111844 recid=111 stamp=603544835
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:08
channel ORA_DISK_1: starting datafile copy
input datafile fno=00004 name=+DATADG/orcl10g/users01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-USERS_FNO-4_6chvin87 tag=BACKUP_ORCL10G_000_101106111844 recid=112 stamp=603544841
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
Finished backup at 11-OCT-06
Starting Control File and SPFILE Autobackup at 11-OCT-06
piece handle=/rawdata/c-770753237-20061011-05 comment=NONE
Finished Control File and SPFILE Autobackup at 11-OCT-06
RMAN>
Starting backup at 11-OCT-06
current log archived
using channel ORA_DISK_1
archived log /rawdata/arch_D-ORCL10G_id-770753237_S-1062_T-1_A-586368151_cqhvf270 not found or out of sync with catalog
trying alternate file for archivelog thread 1, sequence 1062
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 10/11/2006 11:20:54
RMAN-06059: expected archived log not found, lost of archived log compromises recoverability
ORA-19625: error identifying file /rawdata/arch_D-ORCL10G_id-770753237_S-1062_T-1_A-586368151_puhkv41f
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
RMAN>
Recovery Manager complete.
It seems the system tries to find a file “arch_D-ORCL10G_id-770753237_S-1062_T-1_A-586368151_cqhvf270” in /rawdata. I just can not understand.
What should I do? Any advice is highly appreciated!
Qian

the string value in the field of 'log_archive_dest_1" under "All Initialization parameters" is "LOCATION=+DATADG/orcl10g/". The same value was in the field under SPFile.
I reset these values and tried to backup the whole database. The same error appeared. The log says:
Recovery Manager: Release 10.1.0.2.0 - Production
Copyright (c) 1995, 2004, Oracle. All rights reserved.
RMAN>
connected to target database: ORCL10G (DBID=770753237)
using target database controlfile instead of recovery catalog
RMAN>
Starting backup at 11-OCT-06
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=245 devtype=DISK
channel ORA_DISK_1: starting datafile copy
input datafile fno=00001 name=+DATADG/orcl10g/system01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-SYSTEM_FNO-1_6ghvj9rd tag=BACKUP_ORCL10G_000_101106043753 recid=114 stamp=603563922
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting datafile copy
input datafile fno=00003 name=+DATADG/orcl10g/sysaux01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-SYSAUX_FNO-3_6hhvj9sq tag=BACKUP_ORCL10G_000_101106043753 recid=115 stamp=603563963
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:35
channel ORA_DISK_1: starting datafile copy
input datafile fno=00005 name=+DATADG/orcl10g/example01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-EXAMPLE_FNO-5_6ihvj9tu tag=BACKUP_ORCL10G_000_101106043753 recid=116 stamp=603563977
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:15
channel ORA_DISK_1: starting datafile copy
input datafile fno=00002 name=+DATADG/orcl10g/undotbs01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-UNDOTBS1_FNO-2_6jhvj9ud tag=BACKUP_ORCL10G_000_101106043753 recid=117 stamp=603563984
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
channel ORA_DISK_1: starting datafile copy
input datafile fno=00004 name=+DATADG/orcl10g/users01.dbf
output filename=/rawdata/data_D-ORCL10G_I-770753237_TS-USERS_FNO-4_6khvj9uk tag=BACKUP_ORCL10G_000_101106043753 recid=118 stamp=603563990
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
Finished backup at 11-OCT-06
Starting Control File and SPFILE Autobackup at 11-OCT-06
piece handle=/rawdata/c-770753237-20061011-07 comment=NONE
Finished Control File and SPFILE Autobackup at 11-OCT-06
RMAN>
Starting backup at 11-OCT-06
current log archived
using channel ORA_DISK_1
archived log /rawdata/arch_D-ORCL10G_id-770753237_S-1062_T-1_A-586368151_cqhvf270 not found or out of sync with catalog
trying alternate file for archivelog thread 1, sequence 1062
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 10/11/2006 16:40:05
RMAN-06059: expected archived log not found, lost of archived log compromises recoverability
ORA-19625: error identifying file /rawdata/arch_D-ORCL10G_id-770753237_S-1062_T-1_A-586368151_puhkv41f
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
RMAN>
Recovery Manager complete.
Why the system keeps trying to find files under /rawdata? It is the destination, not the source.
Any help is appreciated!
Qian
Message was edited by:
QianChen

Control file and spfile auto backup backup is failing

Hello All,
I am using Oracle RAC 11gR2 with ASM. My database is 2 nodes RAC1 and RAC2.
I am taking RMAN database backups to ASM diskgroup (FRA) and to a Network File System mounted on both RAC1 and RAC2. I have this requirement to take backup also outside ASM.
I have set: CONFIGURE CONTROL FILE AUTOBACKUP ON;
I am runing the RMAN backup job from node 2 (RAC2)
I am facing the below error when taking a backup to the Network File system;
Starting Control File and SPFILE Autobackup at 08-SEP-12
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of Control File and SPFILE Autobackup command on ORA_DISK_1 channel at 09/08/2012 18:20:06
ORA-00245: control file backup failed; target is likely on a local file systemHow could I solve that ?
Regards,

NB wrote:
Is that general configuration ? or i can only do it for the sessions that RMAN to NFS?at rman
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO 'location_of_shared_storage%F';

NEED TO RECOVER A DATABASE USING RMAN with CONTROL FILE AND NO RMAN CATALOG, DISK FAILURE..

Hello All,
The disk failure caused our production data on the disk to be resotred with the backup data available and recovered through RMAN with cotrolfile , and no catalog DB is configured.
I had the restored the spfile and control file then recovered the database,
startup nomount;
RESTORE SPFILE FROM ' path ' ;
Shutdown immediate;
startup nomount
Restore controfile from autobackup;
restore database;
[AT POINT , A MESSAGE PROMPTED LIKE " failur of restored command - some targets not found" (thinking may be few archives are not found, i proceeded to incomeplete recovery of DB) ]
recover database;
Finished reocvery .
Now in the Grid control i see that 60 blocks of a particular datafile are corrupted and needs recovery. Do i need to get the data file resotred again and recover it or any simple way to recover this data file
When i perform the block recovery , it says recovery failed and when i run the data file recovery it succeeds. Please provide you inputs to recover the database as it is production BI database and pretty critical to our client.
Thanks for your valuable time in advance.
Regards,
Ran G.

These is a common problem if the object are created due to NOLOGGIN option. If you check most of the object which are facing block corruption is indexes .
Use the below query to check the objects :
It will map each block from v$database_block_corruption to either a segment or if the block is free.
$ sqlplus / as sysdba
set pagesize 2000
set linesize 250
SELECT e.owner, e.segment_type, e.segment_name, e.partition_name, c.file#
, greatest(e.block_id, c.block#) corr_start_block#
, least(e.block_id+e.blocks-1, c.block#+c.blocks-1) corr_end_block#
, least(e.block_id+e.blocks-1, c.block#+c.blocks-1)
- greatest(e.block_id, c.block#) + 1 blocks_corrupted
, null description
FROM dba_extents e, v$database_block_corruption c
WHERE e.file_id = c.file#
AND e.block_id <= c.block# + c.blocks - 1
AND e.block_id + e.blocks - 1 >= c.block#
UNION
SELECT s.owner, s.segment_type, s.segment_name, s.partition_name, c.file#
, header_block corr_start_block#
, header_block corr_end_block#
, 1 blocks_corrupted
, 'Segment Header' description
FROM dba_segments s, v$database_block_corruption c
WHERE s.header_file = c.file#
AND s.header_block between c.block# and c.block# + c.blocks - 1
UNION
SELECT null owner, null segment_type, null segment_name, null partition_name, c.file#
, greatest(f.block_id, c.block#) corr_start_block#
, least(f.block_id+f.blocks-1, c.block#+c.blocks-1) corr_end_block#
, least(f.block_id+f.blocks-1, c.block#+c.blocks-1)
- greatest(f.block_id, c.block#) + 1 blocks_corrupted
, 'Free Block' description
FROM dba_free_space f, v$database_block_corruption c
WHERE f.file_id = c.file#
AND f.block_id <= c.block# + c.blocks - 1
AND f.block_id + f.blocks - 1 >= c.block#
order by file#, corr_start_block#;
Below oracle support note will help you :
ORA-1578 / ORA-26040 Corrupt blocks by NOLOGGING - Error explanation and solution (Doc ID 794505.1)
The Gains and Pains of Nologging Operations (Doc ID 290161.1)
SQL> select d.NAME as DBF_NAME, t.NAME as TS_NAME, d.UNRECOVERABLE_CHANGE# as NOLOG_CHNG#, to_char(d.UNRECOVERABLE_TIME, 'Dy DD-Mon-YYYY HH24:MI:SS') as NOLOG_TIME from V$DATAFILE d join V$TABLESPACE t on d.TS# = t.TS# order by t.NAME;
Thanks,
gssdba.wordpress.com

No autobackup of control file for rman

This is what I used for a backup of database. I do not have controlfile autobackup set, I back it up using rman commands. Backup is made to a third party media manager.
I tried to restore and it cannot startup mount the database, it can only nomount the database. I am assumming this is because it cannot find the control file.
Is it possible to recover the controlfile if autobackup not on ? I did make a backup current controlfile with the rman script below .. Is it possible to get back the database at all ..
SQL> Connected to an idle instance.
SQL> ORACLE instance started.
Total System Global Area 1286066176 bytes
Fixed Size 2221160 bytes
Variable Size 805309336 bytes
Database Buffers 469762048 bytes
Redo Buffers 8773632 bytes
ORA-00205: error in identifying control file, check alert log for more info
This is the backup script.
rman target xxx/xxx nocatalog << eof
run {
allocate channel t1 type 'sbt_tape' parms
'ENV=(tdpo_optfile=xxxxxxxxxxxx)';
backup as compressed backupset database plus archivelog delete input;
release channel t1;
quit
eof
rman target xxxx/xxxx nocatalog << eof
run {
allocate channel t1 type 'sbt_tape' parms
'ENV=(tdpo_optfile=xxxxxxxxxxxxx)';
backup current controlfile;
release channel t1;
quit
eof
CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default

joecbc wrote:
I did find this in my ORACLE_HOME .. I was able to do the resrore controlfile command as below .. Not certain how the file named control02.ctl got there, maybe from my backup I did yesterday .. anyway the database is restored, thanks.
RMAN> restore controlfile from '$ORACLE_HOME/fast_recovery_area/RMANT/control02.ctl';
Starting restore at 05-OCT-12
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=212 device type=DISK
channel ORA_DISK_1: copied control file copy
output file name=/data99/oradata/RMANT/control01.ctl
output file name=/u11/app/oracle/fast_recovery_area/RMANT/control02.ctl
Finished restore at 05-OCT-12You have mutiplexed controlfile in two different location:
/data99/oradata/RMANT
/u11/app/oracle/fast_recovery_area/RMANT
This controlfile "control02.ctl" was your current controlfile, you have controlfile in two different location "/data99/oradata/RMANT" and "/u11/app/oracle/fast_recovery_area/RMANT"
So, be aware you have lost only this file "/data99/oradata/RMANT/control01.ctl" and the "control02.ctl" file is not a backup of controlfile, but is your current controlfile.
You restored control01.ctl from control02.ctl
Check it using command above
sqlplus / as sysdba
Select name, status from v$controlfile.
or
show parameter controlEdited by: Levi Pereira on Oct 5, 2012 1:05 PM

Problems creating control file in RMAN duplicate database

There is so much detail involved in this operation that I don't know what might be useful, so I'll start simple. I'm attempting to clone a database on the same host using RMAN "duplicate database". I finally got all the setup done, the OS authentication hurdles hurdled, etc. and entered the command:
duplicate target database to COPYCH2M until time "to_date('March 15 2012 12:00:00', 'Mon DD YYYY HH24:MI:SS')";
The first time I got:
ORA-19504: failed to create file "/u01/app/oracle/oradata/COPYCH2M/control01.ctl"
ORA-27040: file create error, unable to create file
Linux-x86_64 Error: 2: No such file or directory
There was nothing in the Oracle instructions about manually creating the directory, but I did so, thinking that might be the problem. And it created the control files! But then I got the following:
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 05/21/2012 15:59:25
RMAN-03015: error occurred in stored script Memory Script
RMAN-06136: ORACLE error from auxiliary database: ORA-00201: control file version 11.2.0.0.0 incompatible with ORACLE version 11.1.0.1.0
ORA-00202: control file: '/u01/app/oracle/oradata/COPYCH2M/control01.ctl'
Sounds straightforward, if frustrating, right? Apparently you can't duplicate a database that's not in the exact same version. But:
1) The backuppiece we got the control file from was from last November.
2) The version of Oracle has not been updated since that time.
How can a file created by this version be incompatible with this version? Where is it even getting 11.1?
Thanks, I'm hoping this is easy but I can post more info if needed.

>
There was nothing in the Oracle instructions about manually creating the directory, but I did so, thinking that might be the problem. And it created the control files! But then I got the following:
>
The database is limited as to what it can create. Since you defined where you wanted the controlfiles to go (pfile/spfile), it's up to you to make sure the directory is valid and exists. :)
>
How can a file created by this version be incompatible with this version? Where is it even getting 11.1?
>
As for your controlfiles, make sure the compatible parameter is set the same on both the source and the target unless you are using the default (11.1.0.1 for you, and you aren't)
Keep going, you'll get there. RMAN duplicate is a great feature.
Good luck.

Archivelog files and Rman backup

Hi all,
Please somebody guide me regarding the following concept.
We have the oracle server version 10.2.0.1.0, working with Windows OS,
I had set the parameter log_archive_dest_1 for locating archivelog files, then I had changed the archivelog files to the flash recovery area(located in another disk) by using the parameters db_recovery_file_dest_size and db_recovery_file_dest.
Now the archivelog files are being located at two different location. At this point, If I take backup for archivelog files with the aid of RMAN, then ,
How will the RMAN take backup from those two different locations?
Thanks&Regards,
Jai.

PROBLEM :
I have archivelogs duplexed - when running RMAN - rman backups up the archivelogs from both duplexed destinations - from the user manual - this should not be the case, any ideas?
Details:
I have archivelogs duplexed
I have the following set in rman :
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 2 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK;
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/backup/rman/WPPMD/control_%F';
CONFIGURE DEVICE TYPE 'SBT_TAPE' PARALLELISM 10 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 '/backup/rman/WPPMD/backup_%d_%T_%U' MAXPIECESIZE 10 G;
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'LOW' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE;
CONFIGURE ARCHIVELOG DELETION POLICY TO BACKED UP 1 TIMES TO DISK;
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/app/oracle/product/11.2.0/dbhome_1/dbs/snapcf_WPPMD.f'; # default
When I run backups via a script :
backup incremental level=$RMAN_LEVEL database plus archivelog;
($RMAN_LEVEL changes between 0 and 1 depending on the day of the week)
It backs both duplex copies of the same archivelog
From the document :
Oracle10g / 11g - Getting Started with Recovery Manager (RMAN) [ID 360416.1]
It says :
Even if your redo logs are being archived to multiple destinations and you use RMAN to back up archived redo logs,
RMAN selects only one copy of the archived redo log file to include in the backup set. (Since logs with the same log sequence number are identical, there is no need to include more than one copy.)
But this is not the case ie
RMAN> list archivelog sequence 2445;
using target database control file instead of recovery catalog
List of Archived Log Copies for database with db_unique_name WPPMD
=====================================================================
Key Thrd Seq S Low Time
4640 1 2445 A 17-DEC-10
Name: /log/recovery_area/WPPMD/archivelog2/1_2445_735315419.dbf
4639 1 2445 A 17-DEC-10
Name: /log/recovery_area/WPPMD/archivelog/2010_12_17/o1_mf_1_2445_6jpx9n7c_.arc
So it still backing up both copies of the archive log.
Any ideas? is this a bug?
Thanks
Luca
Edited by: user4599449 on 17-Dec-2010 07:05
Edited by: user4599449 on 17-Dec-2010 07:06

Which control file does RMAN use?

On March 1, full backup along with control file was taken
On March 3, full backup along with control file was taken
On March 5, there is a media failure (some datafile is corrupt, but control file is intact).
So, RMAN restores March 3 full back up, and applies archived logs. But my question is: which controlfile does it use? The one on march 3? The one on march 5? Or Both?

The first choice is always the actual,current controlfile. Backed up controlfiles are only used, when all current controlfiles are lost.
Werner

From control file to RMAN catalogue

Dear buddies,
Right now my RMAN backup runs using the control file. How could I change it to catalogue?
Please guide me.
Thanks in advance.

If you already created the catalog then register the database in that catalog as
RMAN> register database ;
If you have not created the catalog then create the catalog and register your database below link help you
http://download.oracle.com/docs/cd/B28359_01/backup.111/b28270/rcmcatdb.htm
--neeraj.

Recover from missing files(redo log file/control file) and state of the DB

Hello,
i hv go through the doc. as well. But have some doubts what will happen in each on these situations.
Pls help me to clarify these!
Scenario is like this;
hv 3 redo log files - multiplxed
hv 3 control files - multiplxed
- What will happen if 1 redo log file missing when starting the DB?
- What will happen if 1 redo log file missing when using(performing operations) the DB?
(will it recover automatically/db abort/even redo log lost will the DB run as usual... ?)
-How to recover this lost redo log?
- What will happen if 1 control file missing when starting the DB?
- What will happen if 1 control file missing when using(performing operations) the DB?
(will it recover automatically/db abort/even control file lost will the DB run as usual... ?)
-How to recover this lost redo log?
thanks

- What will happen if 1 redo log file missing when starting the DB?IF you have multiplexed the members you can drop the lost file and will be able to open the DB
What will happen if 1 redo log file missing when using(performing operations) the DB?Again if multiplexed it will drop a warinign in the alert log and contnue to write on othere members
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/recoscen.htm#sthref1385
- What will happen if 1 control file missing when starting the DB?Just remove the entry from the init.ora and start the DB
What will happen if 1 control file missing when using(performing operations) the DB?Will shutdown

Restore control file and openresetlogs

hi
When I restore controlfile from autobackup
and than restore database and recover database;
I can only open the database with openresetlogs option.
why?

1-)
Does all datafiles and control files have scn or
checkpoint scn?
and Does all redolog groups have same scn?
what is SCN?
Any changes i.e DML in a database is assigned a system change number (SCN) ,SCN is assigned for changes that is why its called system change number.Both SCN and changes are written to redo log files.
SQL> select current_scn from v$database
2 /
CURRENT_SCN
     756124
SQL> /
CURRENT_SCN
     756125
SQL> /
CURRENT_SCN
     756136
SQL> /
CURRENT_SCN
     756138
SQL> /
CURRENT_SCN
     756140
SQL> /
CURRENT_SCN
     756394
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount
ORACLE instance started.
Total System Global Area 171966464 bytes
Fixed Size                   787988 bytes
Variable Size             145488364 bytes
Database Buffers           25165824 bytes
Redo Buffers                 524288 bytes
Database mounted.
SQL> select current_scn from v$database
2   /
CURRENT_SCN
          0
SQL> /
CURRENT_SCN
          0
SQL> /
CURRENT_SCN
          0
SQL> /
CURRENT_SCN
          0
SQL> When yours database in mount state no activity either from user ends ,background process or foreground process no scn is going to assigned.
whats the use of SCN why it is inremented?
http://download.oracle.com/docs/cd/B19306_01/server.102/b14220/consist.htm#CNCPT221
2-)
Does checkpoint scn changes every checkpoint(log switch,etc....).not every second.
checkpoint scn changes after every logswitch cause after log switch an event occur for chekpoint ,this event starts writing dirty buffer from database buffer cache to datafile for which redo log file contains data.After flusing alls dirty buffer from database buffer to datafile an SCN is assigned (system change number assigned) this chekpoint is also a change thats why it is also assigned SCN which is checkpoint SCN,CKPT process gives the database a timestamp/SCN by incrementing a number in controlfile header and broadcast that same SCN to alls datafiles.
CKPT can occur for the number of reason one for is log switch when yours redo log filled , you can also manually trigger checkpoint by issuing alter system command or you may set parameters like log_checkpoint_timeout etc.
3-)
What about scn?? Does it the one that I see from
select current_scn from v$database? which changes every one second?
Check first question reply.
Khurram

Archive files and rman backup

Hi Experts,
For testing, I creates a testing DB. after that, I delete some archive file from physical side.
testing DB works well.
However, I tyr to back up thsi testing DB. I got below error message
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=142 devtype=DISK
new RMAN configuration parameters:
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT 'D:\Oraclebackup\CLS\exports\RMAN\%U
new RMAN configuration parameters are successfully stored
released channel: ORA_DISK_1
Starting backup at 15-JAN-09
current log archived
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=142 devtype=DISK
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup plus archivelog command at 01/15/2009 15:18:13
RMAN-06059: expected archived log not found, lost of archived log compromises re
coverability
ORA-19625: error identifying file D:\test\ARC00001_0675529905.001
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
So How to fix this issue?
That means we can not delete any archive log files that we do not need it.
Otherwise there are a problemwhen we try to backup later
JIm

Hi Jim,
change archivelog all crosscheck ;
will do the trick.
You can purge archive files but do it within rman.
Add a line in your rman backup script which makes backup your database and archive files like this.
delete noprompt copy of archivelog all completed before 'SYSDATE-3';
Regards,
Tycho

Creating a control file copy with ASM

Configuration is Oracle 10.2, RAC, and ASM (Automatic Storage Management). I would like to create a second copy of the control file.
If this wasn't ASM, I could just bring down the database, copy the control file using an operating system command, modify the pfile to reference both the original and new copy, and then restart the database.
Since this is ASM, I cannot use an operating system command to copy the control file, and RMAN "BACKUP" (which is the only way I know to make a copy of the control file) will only work if the database is up. When I "restore" the control file using RMAN and change the pfile to reference both control files I get a message like the following when attempting to start the database:
ORA-00214: control file '+ASMGROUP1/db1/controlfile/current.271.566646845'
version 2241 inconsistent with file
'+ASMGROUP1/db1/controlfile/current.268.566661765' version 2236
Soooooo, how do I make and implement a second copy of a control file using ASM.
Thanks

Hi.
This is not testet so presede with caution as it is meant as a discussion ;-)
As I see it there is no logical way to extend the instance by adding a controlfile.
The following procedure might work (has not been tested)
I think you have to make a controlfilebackup with the database closed in normal mode using RMAN.
Further you might be able to edit the pfile with create pfile from spfile and further create spfile from pfile. Extending the controlfile parameter to represent number and names of controlfile needed.
With this done, the database is closed normal with a controlfile copy presented somewhere on the filesystem.
startup mount;
restore controlfile from '<backup controlfile location>'
alter database mount;
alter database open;
Any thoughts about this procedure guys?
Rgds
Kjell Ove

Control file and Rman

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