RMAN and noarchivelog

Hi fellows,
Could someone give me some acceptable explanation as to why I have to take a backup after restoring my
offline backup using RMAN of a
noarchivelog db? The docs only say it is mandatory, but does not mention why. It just puzzles me, because
while using RMAN for even an offline backup of a noarchivelog db seems a good idea, this extra backup
seems completely unnecessary to me.
Thanks for any input,
Csaba

No, this is what Oracle says, that is why I am asking. It is in the OCP preparation book. They recommend using RMAN, but if you restore a cold backup of a noarchivelog db using RMAN, then after restoring you must take another cold backup.
Sounds really stupid, but this is what the book says. I just cannot make head or tail WHY RMAN needs it. If it is a bug, or something left to improve in RMAN or what.
Thanks...
Csaba

Similar Messages

Simple Problems of oracle 8i using Rman and so.................

I am Shan here. I am DBA student for oracle 8i. I have a problem with a backup and recoverys article which is Rman. If you can not help for this then please tell me a contact of that person who can help me. If u can then it is on..
1- I create a user RMAN. I grant him a quota on rman and on rman_temp tablespace; grant him a dba, sysdba, recovery_catalog_owner role. Then I connect it to target. Then I create catalog, then register database then type a command of list (LIST COPY OF DATABASE and LIST BACKUP OF DATABSE) it shows me nothing. ok.
Then I take a whole backup of a database with the command
Run {
Allocate channel c1 type disk;
Backup
Format d:\backup\whole_%d_%s_%p.bak
(Database) ;}
This command shows me allocating channel and then processing backup Then this commend ended successfully. And it shows me files physically of my desire path. Then I query a command of LIST for showing me my backup details (LIST BACKUP OF DATABSE). But it shows me nothing. No details about my backup. But the file is still physically there at my given path.
This is the same story with copy command it physically create a file there but do not show it with LIST COPY OF DATABASE command.
It is not a story of a single Computer I changed it and do the same stuff with the others but the result is same. But I got desire results on one Computer but next day I got another problem with this Computer. I type a command of list backup it shows me the results. It has two backup pieces. I tried to delete them with change command by allocating channel for delete type disk. And then change backupset 605(backup set no) delete;. It shows me that he deleted that file form path but when I query of list backup it show me the same results which it show me before delete. Then I tried to delete second set which is still there I would not allow me to delete that set and give a error that catalog does not have the information about that file but list command show me both pieces. I do manual resync catalog command but no difference on results.
Then I take another whole backup at another place, and query to get its information but list command does not show the results. It shows me the old results. Then I take a backup of a single data file and query but the result is same.
I also tried to delete that copy data file by change command but it says that recovery catalog do not have the information about that file.
2- If we allocate more then one channels for backup on a same drive what will be the behavior of those channels.
Will them not working parallel. And tell me that it is true that channels will work parallel when they are writhing information on different drives (different drive means that two different hard drives physically).
Syntax of all commands is writen,I tallied it by book.<<<<<<<<<<<<<<<<3- What is O stands for in crosscheck command? A stands for available U Stands for Unavailable and O Stands for? In a status column.
4- Please tell me a single command to delete all tables of a user. (Single command..)
We are using ORACLE 8i (8.1.7.0.0) Version for practice.
Give its solution by mail
[email protected]

I have briefly used sql*ldr in linux and yes, it does support exit codes

Backup policy on Grid, using RMAN and Recovery Catalog.

Hello Gurus,
I'm trying to move ahead the new features of Oracle 10g in my company. So I've already created Grid Control and will deploy Agents/Targets during the next week. I also want to switch the backup process from the archaic exp/imp to RMAN with the Recovery Catalog.
My question is such: could anybody suggest the best book or text with solutions and descriptions of backup policy, using the Grid, RMAN and Catalog? What I want to do is to create eventually the powerful and centralized storage of every database in a company and do all daily routine from there. But as long as I'm only in the very beginning I want to gain some knowledge before the bad experience, like crashed recovery catalog and no backups for all databases :-)))
Definitely I'll keep existing imp/exp and hotbackup for a long time. I'm not going to substitute all our backup strategy with one catalog. I just want to understand what will be the best practice in the backup perspective.
And at all, I wonder if you please could give me very brief answer to this question: Let's say I have a huge monster with 5 disks by 500Gb RAD0+1. Is it a bad idea to store all of them in one physical machine before they will tape to backup or it could make sense? For me it sounds a bit scary, but probably if all made with the brain it's not a bad idea?
Please, send me to some valuable and good source (like Tom Kyte or Don Burleson) Unfortunately, I didn't find anything regard the backups itself. Only pretty much general thought.
Thanks a lot in advance.
M.

great!
thanks a lot!
this is definitely valuable info and I'll read right away. but as far as understand they suggest to use Data Guard, Standby and RAC which are the best ways to prevent your environment from crash. But in reality (I mean in my company) nobody is going to move to RAC at this point and I'm not sure, that they will have a chance to do in the next year. they just aren't up to it.
what I'm looking for is probably some tips and hints about backups in more or less big environment, but not as big as Oracle itself :-) unfortunately, i'm the only DBA in my surrounding. i mean, i have no friends or mentors DBAs that could seat with me in a pub and pass theirs knowledge from generation to generation :-)))
but anyway, I'll devote this week-end to this link.
thanks a lot!

RMAN and Point IN time recovery

1. We have a table with bad data.
2. We know that data was entered via the GUI exactly one week ago.
3. I have an RMAN database full back-up that was taken the same day but before the table was screwed.
4. the database in archivelog mode.
5. we will be happy to restore the database in the condition before the change occured
5. when I restore database via RMAN, and do:
recover UNTIL TIME '16-MAR-2005';
Oracle restore bad data, and if I put time or scn I get a message that the database incarnation is wrong!
Is there any other way to do it?
TIA

Thanks Laurent! I was able to restore it only until Mar. 17?
1. RMAN> reset database to incarnation 2;
2. RMAN> restore database until time "timestamp '2005-03-15 00:00:00.00'";
RMAN-03002: failure of recover command at 03/29/2005 19:44:11
RMAN-06555: datafile 1 must be restored from backup created before 15-MAR-05
3. My backup was created on Mar. 16, :
RMAN> restore database until time "timestamp '2005-03-17 00:00:00.00'";
RMAN-03002: failure of restore command at 03/29/2005 19:46:55
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 4 found to restore
RMAN-06023: no backup or copy of datafile 3 found to restore
4. RMAN>Restore database; OK
5. RMAN>Recover database; internal error!
RMAN-03002: failure of recover command at 03/29/2005 20:08:02
ORA-00283: recovery session canceled due to errors
RMAN-11003: failure during parse/execution of SQL statement: alter database reco
ver logfile 'G:\ORACLE\ORA10G\FLASH_RECOVERY_DATA\ORCLSRMA\CONTROLFILE\2005_03_2
3\O1_MF_1_14_14442T9B_.ARC'
ORA-00283: recovery session canceled due to errors
ORA-00600: internal error code, arguments: [3021], [1], [15], [2], [0], [419057]
, [0], [416789]
6. RMAN> recover database until time "timestamp '2005-03-17 00:00:00.00'"; OK
7.RMAN> recover database until time "timestamp '2005-03-17 00:00:00.00'"; OK
8. RMAN> alter database open resetlogs; OK
9. RMAN> list incarnation;
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
1 1 ORCLSRMA 2671268838 PARENT 1 09-MAR-04
2 2 ORCLSRMA 2671268838 PARENT 318842 01-MAR-05
3 3 ORCLSRMA 2671268838 ORPHAN 380529 25-MAR-05
5 5 ORCLSRMA 2671268838 CURRENT 409286 29-MAR-05
4 4 ORCLSRMA 2671268838 ORPHAN 416789 25-MAR-05

RMAN and Datapump Question

Hello,
Database : 11gR2
I was recently provieded an access to a new database, because users are complaining of poor perfromance.
During my monitoring of this database, and using statspack report (because we don't have licensed diagnostics pack), I have seen both RMAN and Datapump processes running together during peak hours. So I asked the DBA responsible of this server, why she's scheduling RMAN and datapump together?!! She replied that she knows nothing about these datapump processes and that could be RMAN who is using (“ Module: Data Pump Worker”) !
This answer was surprising me since in the Oracle documentation, I never read that before! Is it correct that RMAN utility can use Data Pump Workers??!
This is here answer : "I think these “ Module: Data Pump Worker” are run by rman during backup."
Thank you and sorry for this stupid question!
Edited by: 899767 on 26-ago-2011 0:47

RMAN and DATAPUMP are two different utility provided by oracle to take backup
Oracle Backup are divided into two parts: ---
a) Physical Backup: -- These are the copies of physical database files and we can take it by using RMAN utilities provided by Oracle.
b) Logical Backup: -- These contain logical data (for example tables and stored procedures) extracted with Oracle Datapump Utility and stored in a binary file
Refer to this thread it will help
https://forums.oracle.com/forums/thread.jspa?threadID=1133819
And
http://myoracleservice.com/?q=node/38

Expert secrets for using RMAN and Data Pump by kamran agayev and Aman Sharm

Hi ,
Is this book available in INDIA:
Expert secrets for using RMAN and Data Pump by kamran agayev and Aman Sharma
How can i get this book in India.
Thanks,
Alok
Edited by: user12141893 on 6 Apr, 2012 11:25 AM
I tried to buy this book online from rampant's official site but shipping cost was more than cost of book.
Book is not available on Flipkart and Amazon also

Helios,
OP can send a mail to me too :-) .
OP,
We are in talks with the publisher. In India, the book would be by another partner publisher and details of it I shall be updating when would be available. Thanks for the interest in our book.
Aman....
PS: This is a technical forum and is not meant for such topics. Please discuss by communicating with Kamran and me over email personally. Let's keep the forum for the very purpose it is meant for-technical discussions.

Rman and bcv bkp

hi,
I want to find out if rman and bcv bkp both triggered together will it lead to any problem.

hi Natarajan,
this is the portal content management forum. for your database question please use the database forums:
http://forums.oracle.com/forums/index.jsp?cat=18
thanks,
christian

Rman and optimizer run parallel

we have 300GB size database and we have to run RMAN full backup which normally takes 6 to 7 hrs to complete and after RMAN completion we need to run the schema level optimizer to collect the statistics for whole database; We need at least 12 hrs complete these two process. OS – Linux with 32 GB ram and 8 CPU.
What the impact of we run both RMAN and schema optimizer parallel.
Is there any way to reduce the process time. Please suggest me. Thanks.
Edited by: lm**** on Jan 28, 2011 10:11 AM

Hi
If you took backup of indexes and temporary tables in your full backup then instead of that you can create new tablespace and move all those indexes and temp.tables and take backup without indexes and temp.tables.
and create one script of those indexes and temp.tables and keep it with you, because temptables are either session preserve or commit preserve so no need to tack backup of those data. it may be reduce you backup time....
Thanks and Regards,
Viren Patel.

RMAN and BRTolls

Hi,
shall i use RMAN and BRtools for backup on SQL Database?if not what are the backup tools for SQL.
rgds
Rajender.J

Vinay,
RMAN is recmd tool for oracle Databases.
SAP provides the tools BRBACKUP, BRARCHIVE, BRRESTORE, BRRECOVER, BRSPACE, BRCONNECT, and BRTOOLS to manage and protect the data in your Oracle database.
If u r talking about SQL Server better u can go for any third party tolls like netbackup or Veritas for Production DB.
Let me know what exaclty u want to do
Regards
Vinod

RMAN and brtools

Hi,
shall i use RMAN and BRtools for backup on SQL Database?if not what are the backup tools for SQL.

Hello,
the tools will not work in a SQL Server environment as they were developed for the Oracle databases.
You can use the transaction DB13 or the Enterprise Manager / Development Studio (2005) to schedule a backup. It is recommended to use the transaction DB13.
Best regards
Clas

Rman and duplicate database.

Hi,
I have some problems with rman and duplicate a database.
Im trying to duplicate a database on a anoter server than the target, and I have run the command SQL>startup force nomount, on the auxiliary system.
But I don't know what commands to use i rman.
Have backup-files on disk at the same server as the auxiliary system is on.
Any tips and tricks?!
Thanks in advanced,
Micke.

I had the same question a while ago. The location of the files you'll need to restore from are specified in the controlfile. The location referenced in the controlfile will be the location where they were put but RMAN on your "source" server. So for instance, if RMAN drops the backup set in /opt/oracle/dbs/tmp, then your controlfile will point to /opt/oracle/dbs/tmp. (yours probably won't be here, it's just an example). Your controlfile WILL however have to go in the dbs directory, wherever that is.
What worked for me in the past was placing the backup files on the destination server in /home/oracle/backup_<date> and recreating the file structure based on that of the source server (even if it's just empty dirs) and symlink the last level of the tree to the folder where the files reside.
For example:
ln -s /home/oracle/backup_03272008 /opt/oracle/dbs/tmp
I think there's a more efficient way to do this, but this worked for me.

Oracle RMAN and SAP Databases

Hi all,
Am mainly an Oracle DBA and had just recently return to supporting SAP customers after a 4 year absence of supporting non-SAP customers.
Anyway, I have some question on using Oracle RMAN with SAP databases. Backup softwares are Netbackup and Data Protector.
I managed to get the backup working, that is, there is no issues, Oracle RMAN backup using SAP's brarchive and brbackup works alright. My question is about using an Oracle RMAN catalog. I've read thru several SAP documentation and cannot find one where I can use a RMAN catalog.
Reading from
http://help.sap.com/saphelp_nw04/helpdata/en/d1/43d7cab9a04a409cc46876e36762c2/content.htm
Does that mean I cannot use a RMAN catalog? Had anyone managed to use a RMAN catalog to do the RMAN backup?
*Another question I have is, do I need Netbackup and Data Protector if I want to run RMAN backup to disk via brarchive and brbackup? Does backint requires a SBT library to use RMAN? What I mean is, I want to use RMAN but doing backup to disk instead of to tape which means I don't need the tape library installed, will backint know that this is the case and will not look for the tape library?
Any advise or feedback on this will be very much appreciated. Thanks in advance.
Extracts from http://help.sap.com/saphelp_nw04/helpdata/en/d1/43d7cab9a04a409cc46876e36762c2/content.htm are as below:
The Oracle Recovery Manager (RMAN) is an Oracle backup program. You can use it as a command line interface (CLI) or as a graphical user interface (GUI) in the Oracle Enterprise Manager (OEM). We support RMAN with the SAP backup tools BRBACKUP and BRARCHIVE.
RMAN uses the System Backup to Tape (SBT) interface to back up to tape devices. We implement SBT using the SAP backup library. External backup tools can implement this interface as a dynamic link library (DLL).
Integration
By integrating RMAN into BRBACKUP, you can add security and flexibility to important functions in existing backup strategies and tools:
· The recovery catalog is not used. The backup information is stored in the control file. After the backup, the control file is also backed up. In a restore, the control file is restored first, followed by the data files.
· The integration of RMAN into BRBACKUP also guarantees integration into the SAP Structure linkComputing Center Management System (CCMS).
· BRBACKUP tape management functions as previously (that is, as when using the SAP backup library).
· You can still use the BACKINT interface with external tools.
· All previous SAP backup strategies are supported while using RMAN. Nevertheless, RMAN is not supported for standby database backups and split-mirror backups.
· The following components are delivered with the standard Oracle8 installation:
¡ RMAN with the Oracle SBT interface
¡ Backup library and backup tool Networker from Legato
¡ Legatou2019s BACKINT interface implementation (as of Oracle 8.0.5)
The SAP installation also delivers the SAP backup library with BRBACKUP and BRARCHIVE.
Edited by: newbie01.sap on Jun 11, 2010 10:50 AM

Hi,
This question has been answered by Stefan Koehler. Not sure why the thread is not updated by his response. I am hoping to give him the max points actually.
It was a very good response which is as below:
Subject: Re: Oracle RMAN and SAP Databases
Message: Hello,
> Does that mean I cannot use a RMAN catalog? Had anyone managed to use a RMAN catalog to do the RMAN backup?
Correct - if you are using the BR*Tools and RMAN you are not able to use a RMAN catalog with it.
You can do manual catalog syncs, but the BR*Tools are not supporting a catalog database.
>Does backint requires a SBT library to use RMAN?
Check this documentation (Point "RMAN Backups Without Backup Library"): http://help.sap.com/saphelp_nw04/helpdata/en/3f/9d800e1aec11d2b42c00609419997a/content.htm
> Any advise or feedback on this will be very much appreciated.
We are also using RMAN for taking backup of all our oracle database (SAP and non-SAP), but without any BR*Tools.
That is also possible - check sapnote #105047 (Part "50. Recovery Manager (RMAN)").
As you mentioned, that you are a fulltime DBA you should have enough knowledge to use RMAN without BR*Tools.
Regards
Stefan

Interface between RMAN and BACKUP EXEC

Hi,
is it possible to Interface RMAN and BACKUP EXEC ?
I'm looking for some documentations. Many thanks.

Check this Re: Help with tape backup.

What's the difference between RMAN and Datapump?

I'm just wondering about differences between using RMAN and Datapump? If i'm backing up data, moving data, extraction and import times? Thanks.

Hi,
The diference between Data Pump and RMAN is accurately the type of the back up.
The Data Pump to make logic backup and RMAN to make phisycal backup.

RMAN and EMC Timefinder

We are going to use Timefinder to backup our databases. We plan to split the BCVs and then mount them on another host to do the backup. I do not want to start a database on this new host. We will be using OMNIBACK as the tape management system. Is there a way that I can get these backups registered with RMAN?

I guess you should configure this instance in rman as if it was a cold backup, what I'd do is to atach the bcv's in a second host and in this secundary host send the backup to tape with rman, and in the second host you'd do he backup as a cold backup. I'm using networker for the backup of bcv's but without rman, I do the backup only as closed files.
Hope this helps.
Cynthia Pulido
Monterrey, Mexico

RMAN and noarchivelog

Similar Messages

Maybe you are looking for