RMAN COLD Bk in 10g
Hi,
My database running in noarchive log mode. am taking the cold bk in mount state using rman and it wont take the logfile in the part of cold backup. how to get the lost logfile using rman?
Thanks,
KarthicK
you can issue host commands in an rman script.
i.e. host 'cp redolog <destination>
With hot backup copying the redolog would actually be a bad thing since it is a transient file. In your case it should be usable. There may even be an option to include the redologs with a cold backup, I just don't know it.
Another option - multiplex your redologs. That's probably a better option. Just mount a drive from another server.
Similar Messages
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RMAN cold backup without shuting down R12 application services?
Hi,
Due to some reasons I can't shutdown appstier bcz every time I have to regenrate JAR files.I want to take RMAN cold database backup with stopping all services or I want to shutdown only concurrent manager(adcmctl stop) and apps listener(adalnctl.sh stop).Please comment if this is workable.
Thanks
M LatifHi Latif;
Due to some reasons I can't shutdown appstier bcz every time I have to regenrate JAR files.I want to take RMAN cold database backup with stopping all services or I want to shutdown only concurrent manager(adcmctl stop) and apps listener(adalnctl.sh stop).Please comment if this is workable.Why tou are generate Jar files? What is your reason? RMAN=hotbackup means you dont need to shutdown db or apps. For our client we never close appstier while we are taking RMAN backup
Regard
Helios -
Clonning using RMAN Cold Backup?
Hi,
I have a COLD RMAN backup in prod server and now i want to clone test db using this backup through RMAN. I have 2 question regarding this
1) Where do i need to place the prod RMAN COLD backup files in test server?
2) If i ran below command how RMAN will know where did i placed the backup in test server?
In Test Server
RMAN> duplicate target database to test;DB Version is : 10.2.0.4
Thanks in advancethanks. Now it is unable to restore the datafiles from rman backup.Below steps i tried.
[oracle@Test test1]$ rman target /
Recovery Manager: Release 10.2.0.4.0 - Production on Tue Feb 21 08:58:46 2012
Copyright (c) 1982, 2007, Oracle. All rights reserved.
connected to target database (not started)
RMAN> startup nomount pfile='/u01/app/oracle/product/10.2.0/db_1/dbs/initprod2.ora';
Oracle instance started
Total System Global Area 603979776 bytes
Fixed Size 1268896 bytes
Variable Size 163578720 bytes
Database Buffers 436207616 bytes
Redo Buffers 2924544 bytes
RMAN> restore controlfile from '/u01/app/oracle/product/10.2.0/backup/test1/21_RMAN_BACKUP_08n3s02u_1_1.bak';
Starting restore at 21-FEB-12
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:05
output filename=/u01/app/oracle/product/10.2.0/oradata/test1/control01.ctl
output filename=/u01/app/oracle/product/10.2.0/oradata/test1/control02.ctl
output filename=/u01/app/oracle/product/10.2.0/oradata/test1/control03.ctl
Finished restore at 21-FEB-12
RMAN> alter database mount;
database mounted
released channel: ORA_DISK_1
RMAN> catalog start with '/u01/app/oracle/product/10.2.0/backup/test1';
Starting implicit crosscheck backup at 21-FEB-12
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
Crosschecked 3 objects
Finished implicit crosscheck backup at 21-FEB-12
Starting implicit crosscheck copy at 21-FEB-12
using channel ORA_DISK_1
Finished implicit crosscheck copy at 21-FEB-12
searching for all files in the recovery area
cataloging files...
no files cataloged
searching for all files that match the pattern /u01/app/oracle/product/10.2.0/backup/test1
List of Files Unknown to the Database
=====================================
File Name: /u01/app/oracle/product/10.2.0/backup/test1/21_RMAN_BACKUP_07n3rvvq_1_1.bak
File Name: /u01/app/oracle/product/10.2.0/backup/test1/21_RMAN_BACKUP_08n3s02u_1_1.bak
Do you really want to catalog the above files (enter YES or NO)? yes
cataloging files...
cataloging done
List of Cataloged Files
=======================
File Name: /u01/app/oracle/product/10.2.0/backup/test1/21_RMAN_BACKUP_07n3rvvq_1_1.bak
File Name: /u01/app/oracle/product/10.2.0/backup/test1/21_RMAN_BACKUP_08n3s02u_1_1.bak
RMAN>
RMAN> restore database;
Starting restore at 21-FEB-12
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backupset restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
restoring datafile 00001 to /u01/app/oracle/oradata/prod2/system.dbf
restoring datafile 00002 to /u01/app/oracle/oradata/prod2/usr04.dbf
restoring datafile 00003 to /u01/app/oracle/oradata/prod2/undo.dbf
restoring datafile 00004 to /u01/app/oracle/oradata/prod2/sysaux.dbf
restoring datafile 00005 to /u01/app/oracle/oradata/prod2/p1_01.dbf
restoring datafile 00006 to /u01/app/oracle/oradata/prod2/p2_01.dbf
channel ORA_DISK_1: reading from backup piece /u01/app/oracle/product/10.2.0/backup/test1/21_RMAN_BACKUP_07n3rvvq_1_1.bak
ORA-19870: error reading backup piece /u01/app/oracle/product/10.2.0/backup/test1/21_RMAN_BACKUP_07n3rvvq_1_1.bak
ORA-19504: failed to create file "/u01/app/oracle/oradata/prod2/system.dbf"
ORA-27040: file create error, unable to create file
Linux Error: 2: No such file or directory
failover to previous backup
creating datafile fno=1 name=/u01/app/oracle/oradata/prod2/system.dbf
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 02/21/2012 09:01:09
ORA-01180: can not create datafile 1
ORA-01110: data file 1: '/u01/app/oracle/oradata/prod2/system.dbf' -
User managed coldbkp vs rman cold backup
Hi,
I confused about rman cold backup in no catalog mode while restore the backup.please anyone clarify it.
1,I am not confused about user manged cold backup.I took the backup (spfile,control file,redo file,datafile,password file.)Is it right one?
2,In rman cold backup in no catalog mod, we used backup sets for backup,control file is autobackup is enabled.
The backup set format is not OS format.The backup stored at flash recovery area.
Just assume,
I lost all files(spfile,control file,redo file,datafile,password file.)How to recover that.
I am not able to identity spfile & control file in backupset in flash recovery area.
How to identity the spfile,control file during the restoration?
3,Rman takes the copy of online redo file in cold backup?
If it's not,How to recover the database & in user managed backup,copy of online redo log file is must?
4,What is the difference between dbid & sid?when it is used?
5,Can i specifty format for spfile when i take the backup? can i use trace file(control file ) for restoration?
I read the oracle documents, but I am not understand the above things clearly.please anyone rectify it.user3266490 wrote:
Hi,
I confused about rman cold backup in no catalog mode while restore the backup.please anyone clarify it.
1,I am not confused about user manged cold backup.I took the backup (spfile,control file,redo file,datafile,password file.)Is it right one?
Yes,you are right,but first need SHUTDOWN IMMEDIATE;
>
2,In rman cold backup in no catalog mod, we used backup sets for backup,control file is autobackup is enabled.
The backup set format is not OS format.The backup stored at flash recovery area.
If you do not explicitly configured rman then yes it will backup to FRA.
Just assume,
I lost all files(spfile,control file,redo file,datafile,password file.)How to recover that.
First need SET (EXPORT) ORACLE_SID and then
rman target /
startup force nomount;
restore spfile from 'autobackuplocation';
startup force nomount;
restore controlfile from 'autobackuplocation';
catalog start with 'backupandarchiveloglocation';
restore database;
recover database;
alter database open resetlogs;
I am not able to identity spfile & control file in backupset in flash recovery area.
From rman you can execute LIST BACKUP or LIST BACKUP OF CONTROLFILE;
How to identity the spfile,control file during the restoration?
3,Rman takes the copy of online redo file in cold backup?No,RMAN do not backup online logs,due to this do not need.
If it's not,How to recover the database & in user managed backup,copy of online redo log file is must?
If cold backup then you can open database with resetlogs option and online logs will create automatically(if you did not copy this logs)
>
4,What is the difference between dbid & sid?when it is used?
DBID is unique identify database in recovery catalog and using this you can restore controlfile easily.But SID is ORACLE_SID and identify instance.This is environment variable like ORACLE_HOME
5,Can i specifty format for spfile when i take the backup? can i use trace file(control file ) for restoration?
Yes you can identify format manually for spfile. ALTER DATABASE BACKUP CONTROLFILE TO TRACE ... this statement use to getting script for recreating controlfile again.So this is not backup and you can notuse for restoring controlfile.If you do not have a backup of controlfile and all datafilesd available then you can use this statement.
I read the oracle documents, but I am not understand the above things clearly.please anyone rectify it.All these and with all situation clearly explained below doc
http://download.oracle.com/docs/cd/E11882_01/backup.112/e10642/toc.htm -
RMAN Restore using RMAN COLD Backup!!
Hi All,
I Need to restore a database using rman cold backup taken a month back.
Can i use Duplicate database option until time/scn just like we do for hotbackup or is there any other procedure for cloning/refreshing the database using RMAN COLD BACKUP of source.
Thanks & Regards,
PdevThis may be used to clone db
connect target sys/sys@<dba>
connect catalog rman/rman@<dba>
connect auxiliary sys/sys<new>
run {
set newname for datafile 1 to 'e:\oracle\oradata\giri\system01.dbf';
set newname for datafile 2 to 'e:\oracle\oradata\giri\undotbs01.dbf';
set newname for datafile 3 to 'e:\oracle\oradata\giri\users01.dbf';
set newname for datafile 4 to 'e:\oracle\oradata\giri\indx01.dbf';
set newname for datafile 5 to 'e:\oracle\oradata\giri\example01.dbf';
allocate auxiliary channel dupdb1 type disk;
set until sequence 2 thread 1;
duplicate target database to dupdb
logfile
GROUP 1 ('e:\oracle\oradata\giri\redo01.log') SIZE 100k REUSE,
GROUP 2 ('e:\oracle\oradata\giri\redo02.log') SIZE 100k REUSE;
Message was edited by:
Girishh -
Why Resetlogs with Rman Cold Rackup
Hi
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
PL/SQL Release 11.1.0.7.0 - Production
CORE 11.1.0.7.0 Production
TNS for 32-bit Windows: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
I am taking an rman cold backup of my database using :
run
shutdown immediate;
startup mount;
backup full as compressed backupset database tag="FULL_DB_BKP";
alter database open;
}I am restoring it using :
run
restore controlfile from 'T:\flash_recovery_area\TESTDB\AUTOBACKUP\2010_09_20\O1_MF_S_730209956_69G08OPB_.BKP';
alter database mount;
restore database;
alter database open;
}I get the error
ORA-01589: must use RESETLOGS or NORESETLOGS option for database openWhy is that resetlogs required to open the database after cold backup in Rman.The RESETLOGS option is always required after incomplete media recovery or recovery using a backup control file. Resetting the redo log does the following:
Archives the current online redo logs (if they are accessible) and then erases the contents of the online redo logs and resets the log sequence number to 1. For example, if the current online redo logs are sequence 1000 and 1001 when you open RESETLOGS, then the database archives logs 1000 and 1001 and then resets the online logs to sequence 1 and 2.
Creates the online redo log files if they do not currently exist.
Reinitializes the control file metadata about online redo logs and redo threads.
Updates all current datafiles and online redo logs and all subsequent archived redo logs with a new RESETLOGS SCN and time stamp.
Because the database will not apply an archived log to a datafile unless the RESETLOGS SCN and time stamps match, the RESETLOGS prevents you from corrupting datafiles with archived logs that are not from direct parent incarnations of the current incarnation.
answered by Larbi Ejjakireference: what is resetlogs
user9366471
Newbie
Handle: user9366471
Status Level: Newbie
Registered: Mar 22, 2010
Total Posts: 101
Total Questions: 32 (32 unresolved)
why?
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- OTN -
How to I find out if rman backup that was done is Rman Cold backup or Rman
Hi,please help me I have backup set ,that is backupset that have rman data backup and autobackup that have control file,I want to restore this backup but I don't know how the backup was done .please advice me how to check if this was Rman cold backup or rman hot backup.I have pfile that is extracted from database before backup was taken.
Hi Thanks for the update,I checked the v$backup_set on the other database ,but it does not tell me whether ithe backup was Rman cold backup in which database was mounted or Rman hot backup ,now I have to do the restore but I don't know what type of backup do I have please assist.
Edited by: user1022397 on 2010/11/11 4:40 AM -
Difference betwen RMAN,COLD and HOT backup
Hi Experts,
I have faces some interview question .
what is difference between COLD and HOT backup ?
what is difference between RMAN, COLD and HOT backup?You mean the following,
Mark the beginning of the online tablespace backup.
SQL> ALTER TABLESPACE users BEGIN BACKUP;
Back up the online datafiles of the online tablespace with operating system commands. For UNIX:
% cp /oracle/oradata/trgt/users01.dbf /d2/users01_'date "+%m_%d_%y"'.dbf
After backing up the datafiles of the online tablespace, run the SQL statement ALTER TABLESPACE with the END BACKUP option.
SQL> ALTER TABLESPACE users END BACKUP;
Please visit here for more details:
Making User-Managed Backups of Online Read/Write Tablespaces
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/osbackup004.htm#sthref1489
Adith -
We are upgrading our production database in 2 weeks. We will be using datapump to export the source and then import to the new target database. As a final backup before the source export I want an RMAN cold backup to get a consistent point-in-time backup. The database is in archivelog mode. After shutting down and using RMAN to perform the cold backup, I will have to open the database to do the export. So how would RMAN restore the production source database back to the time the database was down if additional archive logs are generated during the export? Would I have to specify a time or SCN or would I have SCN gap issues in the recovery of the source database? This is for the source database that will no longer be used once the import to the target and subsequent ERP upgrades are applied. However, I need to preserve the source for a month or so. I could also continue to take hot RMAN backups after the export is completed, but I need the point-in-time recovery to the exact time of the export. I currently only use online RMAN backups since this is a 24/7 database, but I have a short window to upgrade to the new production database.
Thank you,
Curt Swartzlander
DBA>
Would I have to specify a time or SCN or would I have SCN gap issues in the recovery of the source database? TTo do an incomplete recovery with RMAN requires to specify a date/time or SCN or log sequence because by default RMAN will try to do complete recovery: http://download.oracle.com/docs/cd/B19306_01/backup.102/b14194/rcmsynta065.htm#RCMRF160
Edited by: P. Forstmann on 25 janv. 2010 18:32
Edited by: P. Forstmann on 25 janv. 2010 18:34 -
DB version :10.2.0.4
Do you find anything wrong in the below mentioned RMAN cold backup script? Any enhancements, corrections required?
shutdown immediate;
startup mount;
backup database including current controlfile tag='full_bkp';
startup;
crosscheck backup;
delete noprompt obsolete device type disk;
resync catalog;
}Since you are doing a SHUTDOWN IMMEDIATE and STARTUP MOUNT before the BACKUP, there will be no ArchiveLogs generated while the backup is running --- as the database is not OPEN.
However, the PLUS ARCHIVELOG can include ArchiveLogs that had been generated from the previous STARTUP or ALTER DATABASE OPEN.
(In that case, I would suggest an SQL 'ALTER SYSTEM ARCHIVE LOG CURRENT' before the SHUTDOWN IMMEDIATE).
Is your database running in ARCHIVELOG mode ? If not, then this discussion is moot.
If yes, the next question is, obviously : Why not take a Hot Backup while the database is running (in which case you MUST backup archivelogs !)
Hemant K Chitale -
Create new database using rman cold backup
It oracle 10g database version 10.2.0.4
I took the cold backup of the database using rman ( Database name TEST)
1.RMAN> startup mount;
2.RMAN> backup database include current controlfile;
3.RMAN> alter database open;
I aim to create the new database called DEMO using this backup
Please let know the setps for creating new database
Edited by: prajeevan on Jan 19, 2011 9:09 PMI took the cold backup of the database using rman ( Database name TEST)
1.RMAN> startup mount;
2.RMAN> backup database include current controlfile;
3.RMAN> alter database open;
I aim to create the new database called DEMO using this backup
Please let know the setps for creating new databaseIf it is in archivelog mode you can use duplicate to refresh database DEMO from TEST..
or after cold backup, go to mount ,
create trace file of controlfile becuase you are chaning database name
recreate the controlfile
open database in resetlogs;
check also http://blogs.oracle.com/AlejandroVargas/gems/RMANDUPDBPRACTICE.pdf -
Rman cold backup for oracle rac
Hi experts;
I want to create a cold backup for an oracle 10g rac DB.
It has 2 nodes, it's not in archive log, this will be the next step.
But now, I want to backup before to proceed.
My doubts are:
I need to shutdown the both nodes?
If yes:
I need to startup nomount just in one node?
If there any document with this specifics steps?
Thanks for your help.
AlCold backups are done with the DB completely shut down.
For RAC the data files are used by all nodes in the cluster.
You need to shut down all instances in the RAC.
Then use your OS utilities or RMAN to do the backup.
Here is an 'Ask Tom' topic that discusses this:
http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:851658400346232494 -
RMAN cold backup taking more time than usual
Hi everybody.. please help me resolving below issue..
I have configured the RMAN in one of the production database with separate catalogue database six months earlier. I have sceduled weekly cold backup through RMAN on sunday 6pm. Normally it used to take one hour to complete the cold backup and database goes down soon as the job starts.
But since from then every week the time taken to just initiate the database shutdown continuosly increasing and recently when i checked it is taking 1 hour to initiate the database shutdown. Once the initiation starts it hardly take 1 to 3 min to shutdown.
Database is up and running during that one Hour. I was in the assumption that RMAN takes some time to execute its internal packages.
Please help
Regards,
Arun KumarHi John and Tychos,
Thank you very much for your valuable inputs.
Yesterday there was cold backup and i have monitored the CPU usage. But there was no load on the CPU at that time and CPU usage was 0%
I have tried connecting to RMAN manually and it connects within a second. And also noticed in prstat -a that rman connects as soon as the job starts.
So i think that its taking time at the deleting obsolete backups.
But I have observerd following observation.
Before executing the delete obsolete command as mentioned before
RMAN> REPORT OBSOLETE RECOVERY WINDOW OF 35 DAYS DEVICE TYPE 'SBT_TAPE';
Report of obsolete backups and copies
Type Key Completion Time Filename/Handle
Backup Set 83409 25-JUL-09
Backup Piece 83587 25-JUL-09 arc_SID_20090725_557_1
Backup Set 83410 25-JUL-09
Backup Piece 83588 25-JUL-09 arc_SID_20090725_558_1
Backup Set 83411 25-JUL-09
Backup Piece 83589 25-JUL-09 arc_SID_20090725_559_1
After executing the delete obsolete command
RMAN> REPORT OBSOLETE RECOVERY WINDOW OF 35 DAYS DEVICE TYPE 'SBT_TAPE';
Report of obsolete backups and copies
Type Key Completion Time Filename/Handle
Backup Set 83409 25-JUL-09
Backup Piece 83587 25-JUL-09 arc_SID_20090725_557_1
Backup Set 83410 25-JUL-09
Backup Piece 83588 25-JUL-09 arc_SID_20090725_558_1
Backup Set 83411 25-JUL-09
Backup Piece 83589 25-JUL-09 arc_SID_20090725_559_1
Please advice me on the following.
1. Why its not deleting the obsolete BACKUP SETS?
2. Is it normal that RMAN takes this much deleting obsolete backup sets? How can i minimize the time taking for deleting obsolete files.
Thanks and Regards,
Arun Kumar -
RMAN compression in Oracle 10g R2 Standard
Hi,
We're currently using Oracle 10g R2 Standard Edition on our production databases. I'm revising our backup strategy and I am very interested in RMAN compressed backupsets.
However, can you use the standard compression feature of RMAN in Standard Edition? Or do you need to upgrade to Enterprise Edition? I couldn't find this information in the Oracle documentation.
Please shed some light on this issue. Many thanks in advance.Hi,
I don't think compressing the backupsets is forbidden with a SE license : it is not listed as an unavailable feature. Check note 465465.1 and contact your sales representative if you have similar doubts.
Best regards
Phil -
RMAN configuration (ASM Storage) 10g
hi
i am looking for a RMAN script which can
1. online backup the database to tape for ASM DISKGROUP
2. How can an incremental backup be taken for nologging objects (DWH)
3. can we configure 10g BCT for online tape backup (incremental)
4. how can we refresh the Production ASM database to staging (ASM) like cloning methods
thanks in advanceHi Shakil,
hi
i am looking for a RMAN script which can
1. online backup the database to tape for ASM DISKGROUP
run {
allocate channel t1 type 'SBT_TAPE' parms="ENV=(BLKSIZE=1048576)";
send 'NB_ORA_POLICY=YOUR_POLICY, NB_ORA_SCHED=YOUR_SCHEDULE, NB_ORA_SERV=YOUR_SERVER';
backup
incremental level 0
skip inaccessible
tag online_backup_level0
filesperset 20
format 'full_online_%d_s%s_p%p_t%t' (database)
plus archivelog tag archived_logs
format 'arch_dia_%d_s%s_p%p_t%t'
include current controlfile tag control_file
format 'ct_file_%d_s%s_p%p_t%t';
release channel t1;
resync catalog;
EOF
2. How can an incremental backup be taken for nologging objects (DWH)
Incremental Backup Algorithm
Each data block in a datafile contains a system change number (SCN), which is the SCN at which the most recent change was made to the block. During an incremental backup, RMAN reads the SCN of each data block in the input file and compares it to the checkpoint SCN of the parent incremental backup. (If block change tracking is enabled, RMAN does not read the portions of the file known to have not changed since the parent incremental backup.) If the SCN in the input data block is greater than or equal to the checkpoint SCN of the parent, then RMAN copies the block.
One consequence of this mechanism is that RMAN applies all blocks containing changed data during recovery—even if the change is to an object created with the NOLOGGING option. Hence, making incremental backups is a safeguard against the loss of changes made by NOLOGGING operations.
http://download.oracle.com/docs/cd/B19306_01/backup.102/b14191/rcmconc1.htm#i1011469
3. can we configure 10g BCT for online tape backup (incremental)
Yes you can.
4. how can we refresh the Production ASM database to staging (ASM) like cloning methods
Yes you can.
thanks in advance
Regards,
Rodrigo Mufalani
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