RMAN online backup with dbconsole.

I want to run an online (hot) backup of a 10g enterprise edition database using dbconsole. There is no option for this on the web page that I can see. I thought I could trick the software by selecting 'whole backup' and then edit the RMAN script and enter the command 'backup database plus archivelog'. That command was documented as the way to run an onlne backup in the Oracle Press book 'Oracle Database 10g, RMAN Backup & Recovery'.
But there was a message stating that the database would be brought down during the backup, obviously ignoring the command mentioned above.
1. Can I perform a hot backup with dbconsole?
2. If so, how?

You can also review the following;
OBE
Performing Backups and Recovering Your Database
Performing Backups
http://www.oracle.com/technology/obe/10gr2_db_single/ha/rman/rman_otn.htm#t1
Adith

Similar Messages

Ebs r12 cloning using rman online backup

dear all,
how are you guys? i have ebs r12 on multi node and i want to clone db tier and apps tier using rman online backup,can anybody provide me the detail steps of cloning ebs(db tier and appstier ) using rman online backup and directory structure on source and target database is also different.your help highly appreciated thanks in advance.
regards.

Hi,
You cannot use RMAN to clone the Apps tier of the EBS and you may use RMAN only on the DB tier. For a complete backup, as mentioned by Hemant K Chitale, you will have to use the rapid clone utility.
To perform a rapid clone using RMAN there are plenty of step by step instructions in google which may guide in addition to support.oracle.com, Let me google that for you
Thanks &
Best Regards,

Restoring whole db Online backup with redologs backup

Dear all,
I am planning to restore a whole DB online + redo logs backup, i have few doubts . please confirm..
On Step 8, Restore and apply archivelog files ...
First sequence number (first_seq) .. (eg) 7276
Last sequence number (last_seq) .. (eg) 7278
we probably only have to mention the last_seq.... Now question is , is this the last archive created when the backup finished...(ie 7278) and in the backup log, it was mentioned that the Next archivelog is 7279...
another question , when we are restoring this backup next day , can we apply archives created after 7278 to achive DB point in time..
Thanks & regards
Adnan

Hi
U have to recover the databse using the archive files after the backup was taken.
The archive files should be copied from the source system to the target but make sure that u rename those archive files as acceptable to the target system ie log_archive_format parameter of the target system. ie sid should be there in the name of the archive files.
One more thing if u wish to keep the target DB in sync with the source DB then u would need to apply all the archive files generated after the online backup was taken.
Make sure to open the database in resetlogs mode
In short the steps wud be as follows.
1. Issue the following in ur source system
alter database backup controlfile to trace ; .
2.Modify the .trc file as below created under usertrace directory which generally shud be /oracle/SID/saptrace/usertrace
a. CREATE CONTROLFILE SET DATABASE "Target_SID" NORESETLOGS ARCHIVELOG
b.The directory structures of the redo log and datafiles as per the directory structure available in ur target system.
c.Remove all other lines from the file ur file should end with like character set ...;
d. Save the file as something.sql and copy it to the target system.
3. Restore the online backup on the target system ...don't need to restore the redo log files.
Also copy the archive file from the source system to the target system and rename them as per target system.
4. In the target system connect as sysdba
SQL> startup nomount
SQL> @something.sql
It wud say control file created and the DB will be mounted .
5. Now issue the command
Recover database using backup controlfile;
Apply the archives when done issue the following
alter database open resetlogs;
Regards
Kausik

RMAN merge backup with compression

Hi All,
Os : solaris 10
db: 10.2.0.4
as of now as per our backup strategy we are taking RMAN levle 0 weekly and daily incremental backup as compressed.
we are planning to take RMAN merge backup like below
For full backup on sunday
backup incremental level 0 AS COPY tag 'DEMO_MERGE_DB' database ;rest of the days
BACKUP INCREMENTAL LEVEL 1 FOR RECOVER OF COPY WITH TAG 'DEMO_MERGE_DB' DATABASE;My question is , while taking as merge is there any option to compress the backup.
i have gone through but dint see any info regarding this.
Please help...
Thanks in Advance
Mvk

merge backup , updated backup and image copy are these things are same or any difference inbetween..Image copy of backup copy of the data file
merge backup means that you take incremental backup of data and merge it with the image backup copy of the datafile so that backup copy is updated all the time and in case of recovery, you don't need to apply all archives since backup copy because his copy is already up to date till the time of last merge backup.
Now your image copy backup is an updated backup because it is keep on updated with the incremental backups using merge backup strategy.
Salman

I formatted my harddrive, did not backup my mozilla (on accident), but I was wondering if there might be an online backup with your database?

I was hoping there might be some information that's sent to an online database, because I had literally forgot to backup that specific file, and now I'm hoping to find out if there is anyway to recovery what I lost in the formatting of my harddrive.

This is rather hard to follow, and figuring out just what went wrong and when won't really help much, as all you want to do now is be sure you've got everything.
If I understand it correctly, you now have all the right data, much copied via the Finder. If so, check for permissions problems that can occur if you do this, especially in a multi-user environment. If there are many problems, you might do better by using the normal TM interface to select and restore the files & folders.
If all you're now missing are separate Applications folders for each user, use the TM interface to restore them, also.
Note that you probably won't see the backups you want via +Enter Time Machine.+ TM keeps the backups for each Mac separate, and normally only shows the ones for the Mac it's running on, even if there are other Macs' backups on its disk/partition.
To see these "other" backups, you need the (badly named) +Browse Other Time Machine Disks+ option. It's available by holding down the Option key while selecting the TM icon in your Menubar, or by control-clicking (right-clicking) the TM icon in your Dock.
You'll see a selection screen showing all the disks/partitions that have TM backups on them. Select the one you want, and you'll be taken to the normal TM "Star Wars" interface, where you should see all the backups on that disk/partition. You can restore from such backups to an alternate location, by selecting the desired items, clicking the "gear" icon in the TM Finder window's toolbar, and selecting the +Restore <item> to ...+ option.
Also note that when you start doing TM backups from the new Mac, the old ones will be "stranded" -- TM won't delete the oldest ones when it needs room for backups of your new Mac. It will delete the oldest backups from the NEW Mac instead. So your best bet may be, once you're sure you've got everything, to erase your TM disk with Disk Utility and let TM start fresh with the new Mac.

Online backup with redolog failed on newly installed SAP server

Dear All,
Pls check the below log which was taken newly installed SAP server .
BR0051I BRBACKUP 7.00 (24)
BR0055I Start of database backup: beflcufp.and 2011-03-14 15.32.17
BR0484I BRBACKUP log file: D:\oracle\IBQ\sapbackup\beflcufp.and
BR0252W Function remove() failed for 'D:\oracle\IBQ\102\database\sap.ora' at location BrInitOraCreate-1
BR0253W errno 13: Permission denied
BR0252W Function remove() failed for 'D:\oracle\IBQ\102\database\sap.ora' at location BrInitOraCopy-7
BR0253W errno 13: Permission denied
BR0166I Parameter 'control_files' not found in file D:\oracle\IBQ\102\database\initIBQ.ora - default assumed
BR0274W File 'D:\oracle\IBQ\102\database\CTL1IBQ.ORA' not found
BR0280I BRBACKUP time stamp: 2011-03-14 15.32.20
BR0319I Control file copy created: D:\oracle\IBQ\sapbackup\CNTRLIBQ.DBF 12664832
BR0063I 17 of 17 files processed - 26652.203 MB of 26652.203 MB done
BR0204I Percentage done: 100.00%, estimated end time: 15:56
BR0001I **************************************************
BR0280I BRBACKUP time stamp: 2011-03-14 15.56.42
BR0340I Switching to next online redo log file for database instance IBQ ...
BR0321I Switch to next online redo log file for database instance IBQ successful
BR0117I ARCHIVE LOG LIST after backup for database instance IBQ
Parameter                      Value
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            D:\oracle\IBQ\oraarch\IBQarch
Archive format                 ARC%S_%R.%T
Oldest online log sequence     308
Next log sequence to archive   311
Current log sequence           311              SCN: 2870470
Database block size            8192             Thread: 1
Current system change number   2870472          ResetId: 745348120
BR0017E Offline redo log file 'D:\oracle\IBQ\102\RDBMS\ARC00310_0745348120.001' not found
BR0056I End of database backup: beflcufp.and 2011-03-14 15.56.43
BR0280I BRBACKUP time stamp: 2011-03-14 15.56.43
BR0054I BRBACKUP terminated with errors
BR0280I BRBACKUP time stamp: 2011-03-14 15.56.43
BR0291I BRARCHIVE will be started with options '-U -jid ALLOG20110314153206 -d disk -c force -p initIBQ.sap -cds'
BR0280I BRBACKUP time stamp: 2011-03-14 15.56.44
BR0292I Execution of BRARCHIVE finished with return code 3
Regards

Dear all,
Backup got failed pls check below logs (Note : Kernal also upgraded and ORACLE_SID
ORACLE_HOME also set .
BR0063I 17 of 17 files processed - 26652.203 of 26652.203 MB done
BR0204I Percentage done: 100.00%, estimated end time: 15:27
BR0001I **************************************************
BR0280I BRBACKUP time stamp: 2011-03-16 15.27.46
BR0340I Switching to next online redo log file for database instance IBQ ...
BR0321I Switch to next online redo log file for database instance IBQ successful
BR0117I ARCHIVE LOG LIST after backup for database instance IBQ
Parameter                      Value
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            D:\oracle\IBQ\oraarch\IBQarch
Archive format                 ARC%S_%R.%T
Oldest online log sequence     312
Next log sequence to archive   315
Current log sequence           315              SCN: 2952702
Database block size            8192             Thread: 1
Current system change number   2952704          ResetId: 745348120
BR0018I Waiting for the next offline redo log file...
BR0202I Saving space_log
BR0203I to D:\oracle\IBQ\sapbackup\IBQ ...
BR0202I Saving D:\oracle\IBQ\sapbackup\beflmnyz.and
BR0203I to D:\oracle\IBQ\sapbackup\IBQ ...
BR0202I Saving D:\oracle\IBQ\sapbackup\backIBQ.log
BR0203I to D:\oracle\IBQ\sapbackup\IBQ ...
BR0056I End of database backup: beflmnyz.and 2011-03-16 15.27.54
BR0280I BRBACKUP time stamp: 2011-03-16 15.27.55
BR0053I BRBACKUP completed successfully with warnings
BR0280I BRBACKUP time stamp: 2011-03-16 15.27.55
BR0053I BRBACKUP completed successfully with warnings
BR0280I BRBACKUP time stamp: 2011-03-16 15.27.55
BR0291I BRARCHIVE will be started with options '-U -jid ALLOG20110316151050 -c force -p initIBQ.sap -cds'
BR0280I BRBACKUP time stamp: 2011-03-16 15.27.57
BR0292I Execution of BRARCHIVE finished with return code 3
BRArchive is not done ,
Kindly advise.

Less redo generates at the time of online backup using RMAN

Hi,
can someone eleborate that why less redo generates at the time of RMAN online backup in comparison of manual hotbackup.
Thanks

A manual hot backup (aka "OS backup" or "scripted backup") cannot handle fractured blocks. This happens when a backup command is copying out blocks from a datafile at the same time as DBWR is updating blocks. The Oracle Block Size (8KB) is generally a multiple of the OS Block size (512Bytes to 4KB or 8KB, depending on the filesystem / raw device and how the OS command copies blocks out). It is possible for DBWR to write 8KB and the OS backup utility to be concurrently reading the same Oracle block as, say, two different 4KB reads. The first half of the Oracle block may be read by one OS call and the second half by another OS call -- the two halves would be inconsistent with each other if Oracle were writing the database block at the same time.
(Therefore a restore of such a backup would give you an inconsistent -- i.e. fractured -- block, which would be logically corrupt).
In order to handle such issues, after a BEGING BACKUP is issued, for every first change to a database block, the whole block is written to the redo stream, not just the change vectors. (If the same database block is subsequently modified while in BACKUP mode, it is only the change vectors that have to be written to the redo stream). Once the END BACKUP is issued, the redo stream does not need to capture whole database blocks.
If such a backup is restored, it still has fractured blocks. However, when applying the ArchiveLogs generated during the Backup, each such fractured block is "automagically repaired" because a whole image is restored from the ArchiveLog. (Subsequent changes are replayed as changes through the change vectors).
Hemant K Chitale
http://hemantoracledba.blogspot.com

How RMAN do online backup?

When doing RMAN online backup, all datafiles are not in backup mode( not like user managed backup). How oracle did that? multifiles backup at same time without redo and undo.
Thanks.

From Article Note:76736.1 RMAN FAQ: Recovery Manager -- Frequently Asked
To understand why RMAN does not require extra logging or backup mode,
you must first understand why those features are required for non-RMAN
online backups.
A non-RMAN online backup consists of a non-Oracle tool, such as cp or
dd, backing up a datafile at the same time that DBWR is updating the
file. We can't prevent the tool from reading a particular block at the
exact same time that DBWR is updating that block. When that happens,
the non-Oracle tool might read a block in a half-updated state, so that
the block which is copied to the backup media might only have been
updated in its first half, while the second half contains older data.
This is called a "fractured block". If this backup needs to be restored
later, and that block needs to be recovered, recovery will fail because
that block is not usable.
The 'alter tablespace begin backup' command is our solution for the
fractured block problem. When a tablespace is in backup mode, and a
change is made to a data block, instead of logging just the changed
bytes to the redo log, we also log a copy of the entire block image
before the change, so that we can reconstruct this block if media
recovery finds that this block was fractured. That block image logging
is what causes extra redo to be generated while files are in backup
mode.
The reason that RMAN does not require extra logging is that it
guarantees that it will never back up a fractured block. We can make
that guarantee because we know the format of Oracle data blocks, and we
verify that each block that we read is complete before we copy it to the
backup. If we read a fractured block, we read the block again to obtain
a complete block before backing it up. non-Oracle tools are not able to
do the same thing because they do not know how to verify the contents of
an Oracle data block.
Backup mode has another effect, which is to 'freeze' the checkpoint in
the header of the file until the file is removed from backup mode.
We do this because we cannot guarantee that the third-party backup
tool will copy the file header prior to copying the data blocks.
RMAN does not need to freeze the file header checkpoint because we
know the order in which we will read the blocks, which enables us to
capture a known good checkpoint for the file.

Online Backup of tablespace

Hello,
I have a Oracle 9i database which is running in Archivelogmode mode and I perform online backups with RMAN. I use the command:
backup tablespace <tablespace_name>;
My documentation now says that I would have to put the specific tablespace into backup mode first. I understand that applies with user-managed (with O/S command) backups of the datafiles but why for online backups too ? My documentation says that if I do not do the step the backup is faulty.
But I tried it ... it works. I performed the online backup...deleted the datafile...and could restore it without no problem.
So is the documentation wrong ?
Thanks Marcus

Putting a tablespace into backup mode is required for
**user managed** online backups. It is not required
for RMAN backups.
Hope this helps.
Kailash.

Required to take backup with out TSM in PROD server.

Dear all,
I required to take backup with out using TSM .
we have got error in TSM . so that i am getting error .
Prod server backup is working automated through TSM .
now i need to take Online backup with out using TSM like DEV and QA (Manual backup) .
For DEV and QA server backup is manual . i am simply moved the tape to tape library and fired the online backup as well same QA also .
Now my query is reqiured to take backup with out the help of TSM in PROD server . Is it possible ?
2 profiles are configured for Online backup and offline backup .
pls check the below profiles .
initSIDdaily.sap -
> Online backup .
initSIDweekly.sap -
> Offline backup
is there any parameter i need to change ?
Kindly advise

Dear all ,
I have initialised the Tape IRPB01 , after i have try to tkae backup , i got below error .
BR0051I BRBACKUP 7.00 (48)
BR0055I Start of database backup: bedqreyq.ant 2010-07-12 13.19.44
BR0484I BRBACKUP log file: /oracle/IRP/sapbackup/bedqreyq.ant
BR0477I Oracle pfile /oracle/IRP/102_64/dbs/initIRP.ora created from spfile /ora
cle/IRP/102_64/dbs/spfileIRP.ora
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.45
BR0319I Control file copy created: /oracle/IRP/sapbackup/cntrlIRP.dbf 15122432
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.46
BR0057I Backup of database: IRP
BR0058I BRBACKUP action ID: bedqreyq
BR0059I BRBACKUP function ID: ant
BR0110I Backup mode: ALL
BR0077I Database file for backup: /oracle/IRP/sapbackup/cntrlIRP.dbf
BR0061I 42 files found for backup, total size 158434.742 MB
BR0143I Backup type: online
BR0112I Files will not be compressed
BR0130I Backup device type: tape
BR0102I Following backup device will be used: /dev/rmt0.1
BR0103I Following backup volume will be used: IRPB01
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.46
BR0256I Enter 'c[ont]' to continue, 's[top]' to cancel BRBACKUP:
c
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.52
BR0257I Your reply: 'c'
BR0259I Program execution will be continued...
BR0208I Volume with name IRPB01 required in device /dev/rmt0.1
BR0210I Please mount BRBACKUP volume, if you have not already done so
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.52
BR0256I Enter 'c[ont]' to continue, 's[top]' to cancel BRBACKUP:
c
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.55
BR0257I Your reply: 'c'
BR0259I Program execution will be continued...
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.55
BR0226I Rewinding tape volume in device /dev/rmt0 ...
BR0351I Restoring /oracle/IRP/sapbackup/.tape.hdr0
BR0355I from /dev/rmt0.1 ...
BR0241I Checking label on volume in device /dev/rmt0.1
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.55
BR0226I Rewinding tape volume in device /dev/rmt0 ...
BR0202I Saving /oracle/IRP/sapbackup/.tape.hdr0
BR0203I to /dev/rmt0.1 ...
BR0209I Volume in device /dev/rmt0.1 has name IRPB01
BR0202I Saving init_ora
BR0203I to /dev/rmt0.1 ...
BR0202I Saving /oracle/IRP/102_64/dbs/initIRPdaily.sap
BR0203I to /dev/rmt0.1 ...
BR0280I BRBACKUP time stamp: 2010-07-12 13.19.59
BR0198I Profiles saved successfully
BR0280I BRBACKUP time stamp: 2010-07-12 13.20.00
BR0315I 'Alter tablespace PSAPSR3 begin backup' successful
BR0202I Saving /oracle/IRP/sapdata1/sr3_1/sr3.data1
BR0203I to /dev/rmt0.1 ...
BR0278E Command output of 'LANG=C dd obs=64k bs=64k if=/oracle/IRP/sapdata1/sr3_
1/sr3.data1 of=/dev/rmt0.1':
dd: /oracle/IRP/sapdata1/sr3_1/sr3.data1: Invalid argument
BR0280I BRBACKUP time stamp: 2010-07-12 13.20.00
BR0279E Return code from 'LANG=C dd obs=64k bs=64k if=/oracle/IRP/sapdata1/sr3_1
/sr3.data1 of=/dev/rmt0.1': 2
BR0222E Copying /oracle/IRP/sapdata1/sr3_1/sr3.data1 to/from /dev/rmt0.1 failed
due to previous errors
BR0280I BRBACKUP time stamp: 2010-07-12 13.20.02
BR0317I 'Alter tablespace PSAPSR3 end backup' successful
BR0056I End of database backup: bedqreyq.ant 2010-07-12 13.20.00
BR0280I BRBACKUP time stamp: 2010-07-12 13.20.02
BR0054I BRBACKUP terminated with errors
BR0292I Execution of BRBACKUP finished with return code 5
BR0668I Warnings or errors occurred - you can continue to ignore them or go back
to repeat the last action
BR0280I BRTOOLS time stamp: 2010-07-12 13.20.02
BR0670I Enter 'c[ont]' to continue, 'b[ack]' to go back, 's[top]' to abort:
Kindly Advise

DB Check and Online Backup failed

Hi!
I would like to execute DB check, DB online backup and other db relevant actions.
Unfortunately when I schedule and execute DB check from tcode DB13 I get the following error:
BR0801I BRCONNECT 7.00 (38)
BR0805I Start of BRCONNECT processing: ceafbnrz.chk 2009-03-25 10.53.35
BR0484I BRCONNECT log file: F:oracleSC3sapcheckceafbnrz.chk
BR0280I BRCONNECT time stamp: 2009-03-25 10.53.36
BR0301E SQL error -1012 at location db_connect-5, SQL statement:
'SELECT NAME FROM V$DATABASE WHERE ROWNUM = 1'
ORA-01012: not logged on
BR0310E Connect to database instance SC3 failed
BR0280I BRCONNECT time stamp: 2009-03-25 10.53.36
BR0301E SQL error -1012 at location db_connect-5, SQL statement:
'SELECT NAME FROM V$DATABASE WHERE ROWNUM = 1'
ORA-01012: not logged on
BR0310E Connect to database instance SC3 failed
BR0806I End of BRCONNECT processing: ceafbnrz.chk 2009-03-25 10.53.36
BR0280I BRCONNECT time stamp: 2009-03-25 10.53.36
BR0804I BRCONNECT terminated with errors
When I try to execute online backup with BRARCHIVE I get the following error:
BR0051I BRBACKUP 7.00 (38)
BR0055I Start of database backup: beafcicl.and 2009-03-25 14.43.27
BR0484I BRBACKUP log file: F:oracleSC3sapbackup eafcicl.and
BR0071E BRBACKUP currently running or was killed
BR0072I Please delete file F:oracleSC3sapbackup.lock.brb if BRBACKUP was killed
BR0073E Setting of BRBACKUP lock failed
BR0056I End of database backup: beafcicl.and 2009-03-25 14.43.27
BR0280I BRBACKUP time stamp: 2009-03-25 14.43.28
BR0054I BRBACKUP terminated with errors
Can some one tell me how to solve this problem?
Thank you very much!
regards
Jürgen

> The content of the file alert<sid>.log
> Wed Mar 25 17:13:46 2009
> Errors in file f:\oracle\sc3\saptrace\usertrace\sc3_ora_1488.trc:
> ORA-07445: exception encountered: core dump [ACCESS_VIOLATION] [_opiosq076] [PC:0x10565AC] [ADDR:0x46] [UNABLE_TO_READ] []+
This doesn't look good
Are you running the latest patchset and interim patch? Some ORA-07445 were fixed with the patches.
Markus

User hot and Rman hot backup

During user mode hot backup lots of redo gets generated as the entire block is written when any changes are made to a block which is in hot backup mode.But during Rman hot backup less redo are generated why is this so and whatz the logic invloved? and how oracle recovers the file that has been backed up through Rman.
Could you please explain me regarding this in detail it will be really helpful.
kumaresh

From Article Note:76736.1 RMAN FAQ: Recovery Manager -- Frequently Asked
To understand why RMAN does not require extra logging or backup mode,
you must first understand why those features are required for non-RMAN
online backups.
A non-RMAN online backup consists of a non-Oracle tool, such as cp or
dd, backing up a datafile at the same time that DBWR is updating the
file. We can't prevent the tool from reading a particular block at the
exact same time that DBWR is updating that block. When that happens,
the non-Oracle tool might read a block in a half-updated state, so that
the block which is copied to the backup media might only have been
updated in its first half, while the second half contains older data.
This is called a "fractured block". If this backup needs to be restored
later, and that block needs to be recovered, recovery will fail because
that block is not usable.
The 'alter tablespace begin backup' command is our solution for the
fractured block problem. When a tablespace is in backup mode, and a
change is made to a data block, instead of logging just the changed
bytes to the redo log, we also log a copy of the entire block image
before the change, so that we can reconstruct this block if media
recovery finds that this block was fractured. That block image logging
is what causes extra redo to be generated while files are in backup
mode.
The reason that RMAN does not require extra logging is that it
guarantees that it will never back up a fractured block. We can make
that guarantee because we know the format of Oracle data blocks, and we
verify that each block that we read is complete before we copy it to the
backup. If we read a fractured block, we read the block again to obtain
a complete block before backing it up. non-Oracle tools are not able to
do the same thing because they do not know how to verify the contents of
an Oracle data block.
Backup mode has another effect, which is to 'freeze' the checkpoint in
the header of the file until the file is removed from backup mode.
We do this because we cannot guarantee that the third-party backup
tool will copy the file header prior to copying the data blocks.
RMAN does not need to freeze the file header checkpoint because we
know the order in which we will read the blocks, which enables us to
capture a known good checkpoint for the file.

Online Backups Rman

HI,
I have setup an oracle database running one of our inhouse applications on a Linux Red Hat 4 Enterprise OS. Project go live
is a few days away and I don't have time to teach myself Oracle backups at this stage. I was hoping a few experts could
help me out with the following.
1. What configuration settings do I make to Oracle database and RMAN to prepare for online backups? How do I check
that the settings have already been done?
2. what commands do I then run to trigger off a online backup and what script type do you use so it can be scheduled?
3. How do you schedule the online backup?
My plan its to do an online backup to a folder on another partiton and then use rsync to sync the backup over to another
server which has tape backup.
I also though of running a script to shutdown the databse, then use rsync to copy the databse to a new location and then
startup the database again. Anyone ever use this backup type?
Many Thanks!
Raikal.

Hi 581156,
You can use RMAN to do your online backups, please can you tell us your RDBMS version,OS and if the DB is on archive mode or not? I need this to send you the right links to help you on this process.
Please take a look on this link:
http://www.orafaq.com/wiki/Oracle_database_Backup_and_Recovery_FAQ
Also if you need more information, please refer to:
http://tahiti.oracle.com/
Cheers,
Francisco Munoz Alvarez

RMAN Backup with ASM and Standby in place

Hi All,
We are planning to upgrade our database from 10.2.0.2 to 10.2.0.3. We have ASM as storage on primary and phisical standby is in place.
I want to make a cut of point for backup, i.e if I restore till that poit on primary standby should continue to work. I need not create standby.
We are using rman for backup and primary db uses asm for data,archive and redolog storage.
I have a online complete db backup at 12:00PM. At say 6:00pm i take primary down and apply all archives on standby and cancel recovery on standby along with taking it down. On primary i mount db and take controlfile backup and all archive log backup using rman.
Now i continue with upgrade and many more changes on primary. I will not touch standby. We decide to revertback at 10pm on primary. If I wan to return back to 6:00pm state on primary and standby.
I believe I will restore controlfile backup taken at 6:00pm with db in mount phase. Restore dbfiles from online backup and recover using archives.
My question is do i need to open with resetlogs? Then I will lose my standby which was up to date at 6:00pm. Can I not backup redofiles at 6:00pm with db in mount phase and i restore them then i need not open with reset logs and my stnadby will continue from that point.
Please guide me..Is there way to backup redologs when db is in mount phase and using asm for storage using rman.

There are quite a bunch of steps involved and you need to do some documentation reading.
Do you plan to create the test database on the same machine or different RAC system?
Which version of Oracle are you using? What OS?
There is plenty of information on the web if you search for "duplicate database RAC ASM". Did you try?

RMAN vs Online backup

what would be the main advantages to use RMAN vs Online backup?
On both backup/recovery stand point, RMAN is a lot more reliable and less user error/easy to recover/ faster backup and revocery time?
I am using online backup but want to switch to RMAN..

RMAN is the oracle suggested way of doing backups. RMAN automates a lot of the things that you need to handle if doing a backup the "old fashioned way". Things like the spfile, etc are automatically done w/ the backup.
Another advantage is that RMAN only backs up blocks that are used, so if you have a datafile that is 2G, but only 100M of it is used it will only have to backup 100M, where with a manual backup you would need to backup the entire file.
Is one way better than another? It is hard for me to say, once you become familiar with RMAN, you'll wonder why you didn't learn it earlier.
My 2 cents anyway.

RMAN online backup with dbconsole.

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