RMAN and archivelogs

Hi All,
We are about to implement RMAN instead of brarchive/brbackup. For us the major disadvantage of using RMAN is the way it handles deletion of the archivelogs after backing them up to our TSM storage manager.
When using brarchive a single archivelog is deleted from the archivelog filesystem once it has been backed up to TSM, in this way freeing up space in the archivelog filesystem. When using RMAN the backed up archive logs are only deleted when the complete bunch of "to be backed up archive logs" are actually backed up to TSM. This would mean that if the archive log filesystem fills up (e.g. due to problems with our storage manager or heavy archivelog creation) the space in the filesystem is only freed after the complete RMAN cycle has finished. The database would be hanging untill that time. When using brarchive a single archive log will be deleted once it has been backed up, thereby creating free space in the filesystem immediately and the database to be running normally again.
In order to keep our systems running when the oraarch filesystem is filled up and RMAN is running we can increase the size of the filesystem untill the RMAN cycle has finished and the archivelogs are subsequently deleted. However we are wondering if there is any other way in which we can make sure that the system keeps running. E.g. is it possible to use an 'overflow archivelog filesystem" to which oracle switches once the initial archivelog filesystem fills up? Or any other method?
What's best practice for this?
Thanks.
Regards,
Bart Groot

Hello Bart,
i am sorry, but in your previous post you said that you want to "implement RMAN instead of brarchive/brbackup".
Now you are talking about the init<SID>.sap file again.
If you use native RMAN you have some backup scripts (for full backup, archive log backup, etc.) in which you can specify the FILESPERSET clause. If you still want to use the BR*Tools with RMAN (which uses the init<SID>.sap file) you can specify the FILESPERSET clause globally .. so it is used for archive log files and full backups, etc.
But as i already mentioned that should be no problem, because of in huge environments not all files should be in one backupset.
http://help.sap.com/saphelp_sm32/helpdata/de/82/29e03a00281877e10000000a11402f/content.htm
Regards
Stefan

Similar Messages

10g rman database and archivelogs backup with multipled archlog destination

I would like to use the 10g database and archivelogs backup statetement
backup database plus archivelog;
I would like to restrict the location of the archivelogs backed out as I am multiplexing the
archivelogs
I did not find a LIKE statement and the backup database plus archivelog
Did i miss something
patrick boulay

I meant backup
I just want to restrict rman form backing up the two location using the 'one shot' 10g syntax
I used to backup using two steps
1) datafile
2) archlogs with a LIKE expression to tell Rman where to find the archlogs
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patrick

Backing up database and archivelogs with grid control.

So I was scheduling a job to backup the entire database and archive logs to an ASM diskgroup. Well for some reason.... the backup of both the datafiles and archivelog files keep going to my $ORACLE_HOME/db/dbs directory. I have no clue as I've dropped the job and recreated it and made sure it was going to <diskgroup>. Anyone have any idea what might be happening? I'm using 10.2.0.4 for the database and ASM. My Grid control is also 10.2.0.4.
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Grid Control:
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CONFIGURE DEFAULT DEVICE TYPE TO DISK;
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTRONLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F';
CONFIGURE DEVICE TYPE DISK BACKUP TYPE TO COMPRESSED BACKUPSET PARALLELISM 4;
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CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1;
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '%U';
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Edited by: Luke22 on Feb 2, 2010 12:07 PM

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 archived log

I have 2 identical Database from day 1 (1 Prod and 1 Dev). Prod db runs in archive mode
which produces a number of archived logs after a few hours.
Can I use rman to apply these archived log to the Dev instance to get a copy of the Prod DB? I've copied all *.arc files rom
Prod back to Oracle\oradata\devdb directory
1. rman target internal/<passwd> nocatalog
2. shutdown normal;
3. startup mount pfile=init.ora
4. run {
allocate channel ch1 type disk;
restore archivelog from logseq 11 until logseq 13;
recover database;
I am getting an error saying
RMAN 06050: archivelog thread 1 sequence 11 is already on disk ....
RMAN 06177: restore not done, all files readonly, offline or already restored?
Thanks
null

Hi!
The quick answer is no. But there are several things to know.
1. Production Database in archive mode.
2. Develpment database in no archive mode?
You cannot apply the redo log of (1) to (2) because the SCN (sequence change number) and won't be the same in the both databases. Means more, except if you clone the databases, the control files could be different so remember that redo-logs are binaries, not just a clear-text script.
Other think to know is that in development you can modify, delete apppend data/tables/datafiles/tablespaces.. how can synchronize this with the production? (this situation can be the same production vs development).
If you have a standby database you can do something like you wish, but not identical (tell me and I will explain my little knowledge about it ;)
So you must first know what do you wanna keep in development database, if you just want to have a daily-mirror and can lost production data the best option is to backup production database with RMAN (full, incremental...) in development and use it to replicate another instance every day. Well I have some troubles replicating with RMAN, but people here say it's possible ;)
If you want to keep the same data, you can use an incremental data export (exp utility) and import modified data to development.
A10!
P.S:Sorry for this loooooong text ;)

RMAN backup archivelog all delete input

Hello DBAs,
what does this command will do?
RMAN> backup archivelog all delete input;
DN

I have set cron job for RMAN> backup archivelog all delete input; and its work.
But I got following message in my log file.
Please give ur feed back.
Recovery Manager: Release 10.1.0.4.0 - 64bit Production
Copyright (c) 1995, 2004, Oracle. All rights reserved.
RMAN>
connected to target database: SIDNAME (DBID=XXXXXXXX)
using target database controlfile instead of recovery catalog
RMAN>
Starting backup at 10-FEB-06
current log archived
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=269 devtype=DISK
allocated channel: ORA_DISK_2
channel ORA_DISK_2: sid=268 devtype=DISK
channel ORA_DISK_1: starting compressed archive log backupset
channel ORA_DISK_1: specifying archive log(s) in backup set
input archive log thread=1 sequence=5701 recid=2412 stamp=581958928
input archive log thread=1 sequence=5702 recid=2413 stamp=581961105
input archive log thread=1 sequence=5703 recid=2414 stamp=581964532
input archive log thread=1 sequence=5704 recid=2415 stamp=582025325
input archive log thread=1 sequence=5705 recid=2416 stamp=582029976
input archive log thread=1 sequence=5706 recid=2417 stamp=582031922
channel ORA_DISK_1: starting piece 1 at 10-FEB-06
channel ORA_DISK_2: starting compressed archive log backupset
channel ORA_DISK_2: specifying archive log(s) in backup set
input archive log thread=1 sequence=5707 recid=2418 stamp=582037207
input archive log thread=1 sequence=5708 recid=2419 stamp=582038471
input archive log thread=1 sequence=5709 recid=2420 stamp=582043538
input archive log thread=1 sequence=5710 recid=2421 stamp=582048518
input archive log thread=1 sequence=5711 recid=2422 stamp=582055205
channel ORA_DISK_2: starting piece 1 at 10-FEB-06
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 02/10/2006 18:00:
12
ORA-19502: write error on file "/u02/backup/backup_6ehb2t97_1_1", blockno 6145 (
blocksize=512)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: -1
Additional information: 1048576
channel ORA_DISK_1 disabled, job failed on it will be run on another channel
RMAN-03009: failure of backup command on ORA_DISK_2 channel at 02/10/2006 18:00:
12
ORA-19502: write error on file "/u02/backup/6fhb2t97_1_1", blockno 6145
(blocksize=512)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: -1
Additional information: 1048576
channel ORA_DISK_2 disabled, job failed on it will be run on another channel
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 02/10/2006 18:00:
12
ORA-19502: write error on file "/u02/backup/backup_6ehb2t97_1_1", blockno 6145 (
blocksize=512)
ORA-27063: number of bytes read/written is incorrect
IBM AIX RISC System/6000 Error: 28: No space left on device
Additional information: -1
Additional information: 1048576
RMAN>
Recovery Manager complete.
DN

RMAN and RAC

Hi all,
Just a query with RMAN and backing up RAC databases.
Reading Metalink Note: 243760.1 (RMAN: RAC Backup and Recovery using RMAN) it suggests that, for a 2 node RAC cluster, 2 channels should be set up, with a connection to each instance. For example,
CONFIGURE DEVICE TYPE DISK PARALLELISM 2;
CONFIGURE CHANNEL 1 DEVICE TYPE DISK connect 'SYS/rac@node1';
CONFIGURE CHANNEL 2 DEVICE TYPE DISK connect 'SYS/rac@node2';
On our systems though, which we inherited, the backup script has 4 channels, but all of them connecting to Instance A). For example,
CONFIGURE DEVICE TYPE DISK PARALLELISM 4;
CONFIGURE CHANNEL 1 DEVICE TYPE DISK connect 'SYS/rac@node1';
CONFIGURE CHANNEL 2 DEVICE TYPE DISK connect 'SYS/rac@node1';
CONFIGURE CHANNEL 2 DEVICE TYPE DISK connect 'SYS/rac@node1';
CONFIGURE CHANNEL 2 DEVICE TYPE DISK connect 'SYS/rac@node1';
Now, we have done backup/restoration testing and it all appears to work. I can confirm that both UNDO tablespaces are being backed up, and all archivelogs as well.
I believe the reason why all connections go to the A) node is because the backup storage is locally mounted on the A) node and accessible by the B) node over the private network.
(We use Sun Cluster to mount the backup storage globally between the nodes, with A) being the master/local access and B) having access over the network).
The question is, is there any critical reason why we should connect to each instance, or is it a best practice type thing (e.g. to share the load between nodes) ?
Thanks for you input.

Hi I am trying to register 2 instances in the recovery catalog also. What was the order of operations?
Is this sequesnce correct?
[oracle@vtl-rman ~]$ set ORACLE_SID=fprcprod1
[oracle@vtl-rman ~]$ rman target sys/password@fprcprod1 catalog rman/password@fprccat
Recovery Manager: Release 10.2.0.3.0 - Production on Thu Sep 20 16:32:38 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: FPRCPROD (DBID=1881352426)
connected to recovery catalog database
RMAN> register database;
database registered in recovery catalog
starting full resync of recovery catalog
full resync complete
RMAN> list incarnation;
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
1179 1180 FPRCPROD 1881352426 CURRENT 1 18-SEP-07
RMAN> CONFIGURE DEFAULT DEVICE TYPE TO DISK;
new RMAN configuration parameters:
CONFIGURE DEFAULT DEVICE TYPE TO DISK;
new RMAN configuration parameters are successfully stored
starting full resync of recovery catalog
full resync complete
RMAN> CONFIGURE DEVICE TYPE DISK PARALLELISM 2;
new RMAN configuration parameters:
CONFIGURE DEVICE TYPE DISK PARALLELISM 2 BACKUP TYPE TO BACKUPSET;
new RMAN configuration parameters are successfully stored
starting full resync of recovery catalog
full resync complete
RMAN> CONFIGURE CHANNEL 1 DEVICE TYPE DISK connect 'sys/password@fprcprod1';
new RMAN configuration parameters:
CONFIGURE CHANNEL 1 DEVICE TYPE DISK CONNECT '*';
new RMAN configuration parameters are successfully stored
starting full resync of recovery catalog
full resync complete
RMAN> CONFIGURE CHANNEL 2 DEVICE TYPE DISK connect 'sys/password@fprcprod2';
new RMAN configuration parameters:
CONFIGURE CHANNEL 2 DEVICE TYPE DISK CONNECT '*';
new RMAN configuration parameters are successfully stored
starting full resync of recovery catalog
full resync complete
RMAN> list incarnation;

Synchronize RMAN and TSM

Hi.
Question is little off topic, but maybe someone can help me.
I'm using Oracle 8i on IBM AIX. My database is backed up on TSM server (TDP for Oracle) with RMAN without recovery catalog database(RMAN works on controlfiles of database). During deleting old backups RMAN doesn't wait for confirmation from TSM server, and now some of my backups are out of synchronization with TSM server. I have 8 backup pieces that are on TSM server, but are not in RMAN database.
QUESTION: does anyone of you know the tool or knows how to synchronize RMAN and TSM. There is a tool named "tdposync" which comes with "Tivoli Data Protection for Oracle", but it works only when RMAN uses recovery catalog. I know, that it is possible to write a program that uses TSM API to delete unneeded backups from TSM server, but I'm not very familiar with programming.

Here are the details:
RMAN> run {
2> allocate channel t1 type 'sbt_tape';
3> restore archivelog from logseq 396 until logseq 396 thread 1;
4> release channel t1;
5> }
RMAN-03022: compiling command: allocate
RMAN-03023: executing command: allocate
RMAN-08030: allocated channel: t1
RMAN-08500: channel t1: sid=11 devtype=SBT_TAPE
RMAN-08526: channel t1: MMS Version 2.1.10.0
RMAN-03022: compiling command: restore
RMAN-03022: compiling command: IRESTORE
RMAN-03023: executing command: IRESTORE
RMAN-08017: channel t1: starting archivelog restore to default
destination
RMAN-08022: channel t1: restoring archivelog
RMAN-08510: archivelog thread=1 sequence=396
RMAN-03026: error recovery releasing channel resources
RMAN-08031: released channel: t1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure during compilation of command
RMAN-03013: command type: restore
RMAN-03007: retryable error occurred during execution of command:
IRESTORE
RMAN-07004: unhandled exception during command execution on channel t1
RMAN-10035: exception raised in RPC: ORA-19507: failed to retrieve
sequential fi
le, handle="msjpd1_backup_arch_cecuopqf_1_1", parms=""
ORA-27007: failed to open file
IBM AIX RISC System/6000 Error: 168: System call error number 168.
Additional information: 7011
Additional information: 2
ORA-19511: SBT error = 7011, errno = 168, sbtopen: system error
RMAN-10031: ORA-19624 occurred during call to
DBMS_BACKUP_RESTORE.RESTOREBACKUPP
IECE
null

RMAN and TSM

I'd like to backup archive logs via RMAN and TSM on one node and restore from RMAN/TSM to another node. I always get permission error messages from RMAN. Any idea what's wrong?
Environment:
Oracle 8.1.6
TSM 4.1
TDP for Oracle 2.1.0.10
Any help is greatly appreciated.
Thanks,
Marco

Here are the details:
RMAN> run {
2> allocate channel t1 type 'sbt_tape';
3> restore archivelog from logseq 396 until logseq 396 thread 1;
4> release channel t1;
5> }
RMAN-03022: compiling command: allocate
RMAN-03023: executing command: allocate
RMAN-08030: allocated channel: t1
RMAN-08500: channel t1: sid=11 devtype=SBT_TAPE
RMAN-08526: channel t1: MMS Version 2.1.10.0
RMAN-03022: compiling command: restore
RMAN-03022: compiling command: IRESTORE
RMAN-03023: executing command: IRESTORE
RMAN-08017: channel t1: starting archivelog restore to default
destination
RMAN-08022: channel t1: restoring archivelog
RMAN-08510: archivelog thread=1 sequence=396
RMAN-03026: error recovery releasing channel resources
RMAN-08031: released channel: t1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure during compilation of command
RMAN-03013: command type: restore
RMAN-03007: retryable error occurred during execution of command:
IRESTORE
RMAN-07004: unhandled exception during command execution on channel t1
RMAN-10035: exception raised in RPC: ORA-19507: failed to retrieve
sequential fi
le, handle="msjpd1_backup_arch_cecuopqf_1_1", parms=""
ORA-27007: failed to open file
IBM AIX RISC System/6000 Error: 168: System call error number 168.
Additional information: 7011
Additional information: 2
ORA-19511: SBT error = 7011, errno = 168, sbtopen: system error
RMAN-10031: ORA-19624 occurred during call to
DBMS_BACKUP_RESTORE.RESTOREBACKUPP
IECE
null

Retention Policy to delete both backup sets and archivelogs automatically

I configured the Recovery Window-Based Retention Policy for my database for the window=14 days. I also set up a crontab to do a full backup every Monday. So say in a month, there will be 30 archive logs and 4 full DB backup sets.
Now that I understand if the FRA gets filled up, older archive logs that are not needed for the 14 days recoverable window will be automatically deleted. My questions is what happen to the old backup sets? Will they get deleted automatically too if there is no space left in FRA? Or I need to use "DELETE OBSOLETE" to delete them?
Thanks.

One of the advantages of the FRA is, in case of space pressure obsolete objects (obsolete due to the defined retention policy) are deleted automatically. That's true for backups and archivelogs. The objects are NOT deleted automatically after the retention policy expires, but only when additional space is needed. That does not mean you don't have to care about FRA space consumption. You may have unusual amounts of archivelogs, additional backups and flashback logs (if flashback database is configured), which fill up the FRA.
Werner

Urgent help : Need to recover a database without backup and archivelogs

Hi,
We are in urgent need to recover a database without backup and archivelogs
one datafile seems corrupted
SQL> recover automatic database until cancel using BACKUP CONTROLFILE;
ORA-00279: change 10527325422479 generated at 07/27/2011 03:13:04 needed for
thread 1
ORA-00289: suggestion : /pys/u5/oradata/PYS/PYSarch/arch0001.0000181845.arc
ORA-00280: change 10527325422479 for thread 1 is in sequence #181845
ORA-00278: log file '/pys/u5/oradata/PYS/PYSarch/arch0001.0000181845.arc' no
longer needed for this recovery
ORA-00308: cannot open archived log
'/pys/u5/oradata/PYS/PYSarch/arch0001.0000181845.arc'
ORA-27037: unable to obtain file status
HP-UX Error: 2: No such file or directory
Additional information: 3
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
CANCEL
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/pys/u2/oradata/PYS/pay_system_01.dbf'

N Gasparotto wrote:
bsac14 wrote:
my database is in no archive mode
can you please tell how to restore
yes it is a datafile corruptionYou did not say how you defined that's a datafile corruption. You provide minimum to zero information.
I just need to bring the database up,no need any exact data
I can refresh from prod laterThen drop and recreate database. Basically and since you are not in archive mode, no recover is possible. Period.
Nicolas.Hi,
How did you come to the conclusion that your datafile is corrupted? Can you provide and supported logs?
Regards .....

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 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 archivelogs

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