Rman scenario
Hai all,
Am planning to use the following commands for my complete DB Backup .. Can I rely on this alone ?
CROSSCHECK ARCHIVELOG ALL;
CROSSCHECK BACKUP;
Report obsolete;
Delete noprompt obsolete device type disk;
Delete noprompt expired backup;
backup check logical database plus archivelog delete input;
LIST backup BY File;
restore database validate;
Any ideas ?
Kai
Hi,
Can I rely on this alone?
that depends.
backing up a database with RMAN is Oracles recommended approach. However backing up a database is easy.
Restoring a database is much more interesting. I would recommend trying this backup approach and then try restoring it on a test database.
regards
Alan
Similar Messages
-
Hi,
I am testing some recovery(using RMAN) Scenarios, if i lost my dbid then how i can find it. I am using nocatalog.
Regards,actually i have all backup files of rman nothing more... so now i am at recovery, i cant start database, as i have to set its dbid first... then i can face nomount, mount, resetlogs and open mode. so i wouldn't be able to query v$ views.
-
Recover tablespace is failing and not able to open database
Hello All,
I am using Oracle RAC 11g R2 on Linux. My database is running in NOARHIVELOG mode.
I am testing some RMAN scenarios.
After doing a the below scenario: I think the problem that I used switch log file!!!
RMAN> backup tablespace 'USERS' TAG 'TestBkp_FRA';
RMAN> backup backupset 10 format '/testasm/backup%U' delete input; -- here 10 is the backup set generated in the previous command
RMAN> BACKUP INCREMENTAL LEVEL 1 tablespace users;
alter system switch logfile;-- many times i am not able to recover my users tablespace because of the below :
archived log for thread 1 with sequence 19 is already on disk as file +DATA/orcl/onlinelog/group_1.261.772044543
archived log for thread 1 with sequence 20 is already on disk as file +DATA/orcl/onlinelog/group_2.262.772044547
archived log for thread 2 with sequence 4 is already on disk as file +DATA/orcl/onlinelog/group_4.266.772044919
RMAN-08187: WARNING: media recovery until SCN 1101381 complete
Finished recover at 27-MAR-2012 17:21:36and I am unable to open my database:
RMAN> alter database open;
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of alter db command at 03/27/2012 17:26:18
ORA-01113: file 4 needs media recovery
ORA-01110: data file 4: '+DATA/orcl/datafile/users.259.772044111'below is a list of my backups
RMAN> list backup;
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
9 Full 1.45M DISK 00:00:02 27-MAR-2012 12:06:47
BP Key: 11 Status: AVAILABLE Compressed: NO Tag: TESTBKP
Piece Name: /testasm/backup0an6tvil_1_2
List of Datafiles in backup set 9
File LV Type Ckp SCN Ckp Time Name
4 Full 1092418 27-MAR-2012 11:40:06 +DATA/orcl/datafile/users.259.772044111
BS Key Type LV Size Device Type Elapsed Time Completion Time
10 Full 1.45M DISK 00:00:04 27-MAR-2012 15:58:54
BP Key: 13 Status: AVAILABLE Compressed: NO Tag: TESTBKP_FRA
Piece Name: /testasm/backup0bn6ud5q_1_2
List of Datafiles in backup set 10
File LV Type Ckp SCN Ckp Time Name
4 Full 1100603 27-MAR-2012 15:53:40 +DATA/orcl/datafile/users.259.772044111
BS Key Type LV Size Device Type Elapsed Time Completion Time
11 Incr 0 1.45M DISK 00:00:05 27-MAR-2012 16:16:59
BP Key: 14 Status: AVAILABLE Compressed: NO Tag: TAG20120327T161652
Piece Name: +FRA/orcl/backupset/2012_03_27/nnndn0_tag20120327t161652_0.261.779041015
List of Datafiles in backup set 11
File LV Type Ckp SCN Ckp Time Name
4 0 Incr 1101381 27-MAR-2012 16:13:11 +DATA/orcl/datafile/users.259.772044111
BS Key Type LV Size Device Type Elapsed Time Completion Time
12 Full 1.45M DISK 00:00:02 27-MAR-2012 17:00:26
BP Key: 15 Status: AVAILABLE Compressed: NO Tag: TAG20120327T170023
Piece Name: +FRA/orcl/backupset/2012_03_27/nnndf0_tag20120327t170023_0.260.779043625
List of Datafiles in backup set 12
File LV Type Ckp SCN Ckp Time Name
4 Full 1101381 27-MAR-2012 16:13:11 +DATA/orcl/datafile/users.259.772044111My database is running in NOARCHIVELOG mode I have no Full database backup.
How can I start my database. Please help!!NB wrote:
What do you mean ?
Now I am not able to open my database. it is mounted.
What steps should i do ?If you try to backup database in NOARCHIVELOG mode, you will get below errors
RMAN> backup database;
Starting backup at 27-MAR-12
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=130 device type=DISK
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 03/27/2012 20:30:26
ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode
RMAN>
RMAN> backup tablespace users;
Starting backup at 27-MAR-12
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 03/27/2012 20:30:58
ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode
RMAN>Can you tell me how you took backup? have you taken backup from MOUNT status when its in noarchivelog mode?
If there is inconsistency of SCN, you cant recover it.
Please describe how you took backup & why you want to perform recovery in noarchivelog mode? -
Hi
Plz provide me the various rman scenarios complete and incomplete recovery link
Regards
LuckyInformation on how to backup and restore using rman is in the Oracle manuals. You can find them at tahiti.oracle.com
You can also search this forum, and search the internet with google. -
hellow,
I am working on a rman recovery scenario as follows:
---I have a full backup on sunday
---My database in archivelog mode
---now I lost one of table on Monday 7:20PM
---then I lost another table on same day at 7:40PM
---I came to know about this(both table drop incident) at 7:45PM same day
---Now I have to recover both the tables
---I have catalog database configured
please tell me step by step, how the recovery should be done?
And I also want to know where I can find such scenarios on which I can work any book or web resource?This is an abstract of http://download.oracle.com/docs/cd/B19306_01/backup.102/b14192/flashptr006.htm#sthref651
DBPITR within the current incarnation is performed using the current control file. When performing DBPITR, you can avoid errors by using the SET UNTIL command to set the target time at the beginning of the process, rather than specifying the UNTIL clause on the RESTORE and RECOVER commands individually. This ensures that the datafiles restored from backup will have timestamps early enough to be used in the subsequent RECOVER operation.
The steps required for DBPITR are as follows:
Connect RMAN to the target database and, if applicable, the recovery catalog database. Bring the database to a MOUNT state:
SHUTDOWN IMMEDIATE;
STARTUP MOUNT;
Perform the following operations within a RUN block:
Use SET UNTIL to specify the target time, restore point, SCN, or log sequence number for DBPITR. If specifying a time, then use the date format specified in the NLS_LANG and NLS_DATE_FORMAT environment variables.
If automatic channels are not configured, then manually allocate disk and tape channels as needed.
Restore and recover the database.
The following example performs DBPITR on the target database until SCN 1000:
RUN
SET UNTIL SCN 1000;
# Alternatives:
# SET UNTIL TIME 'Nov 15 2004 09:00:00';
# SET UNTIL SEQUENCE 9923;
RESTORE DATABASE;
RECOVER DATABASE;
Note:
You can also use time expressions, restore points, or log sequence numbers to specify the SET UNTIL time:
SET UNTIL TIME 'Nov 15 2004 09:00:00';
SET UNTIL SEQUENCE 9923;
SET UNTIL RESTORE POINT before_update;
If the operation completes without errors, then your DBPITR has succeeded. You can open the database read-only and perform queries as needed to ensure that the effects of the logical corruption have been reversed. If not, you may have chosen the wrong target SCN. In such a case, investigate the unwanted change further and determine a new target SCN, then repeat the DBPITR process.
7.6.4.1 Using a Time Expression for Database Point-in-Time Recovery
You can use a time expression instead of the SCN in the SET UNTIL statement, as shown in the preceding example. However, note that if you use SET UNTIL TIME to specify the target time for point-in-time recovery, some times that you can specify may not be in the current incarnation. The database may have been in an ancestor incarnation, or even in a sibling incarnation, at the target time. If your target time is not in the current incarnation, then see "Point-in-Time Recovery to an Ancestor Incarnation" for more information on DBPITR to ancestor incarnations, and Oracle Database Backup and Recovery Advanced User's Guide for more information on DBPITR to incarnations that are not ancestors of the current incarnation.
7.6.5 Options After Database Point-in-Time Recovery
After a successful DBPITR, your choices are:
Export one or more objects from your database using an Oracle export utility such as Data Pump Export. You can then recover the database to the current point in time and re-import the exported objects, as a way to return these objects to their state prior to the unwanted change without abandoning all other changes.
Open your database for read-write, abandoning all changes after the target SCN. In such a case, you must open the database with the RESETLOGS option, as shown here:
RMAN> ALTER DATABASE OPEN RESETLOGS;
The current online redo logs are archived, the log sequence number is reset to 1, and the online redo logs are given a new time stamp and SCN. Identifying redo log files with a new log sequence number and incarnation eliminates the possibility of corrupting datafiles by the application of obsolete archived redo logs.
The OPEN RESETLOGS operation will fail if a datafile is off-line, unless the datafile went offline normally or is read-only. You can bring files in read-only or offline normal tablespaces online after the RESETLOGS because they do not need any redo.
Sybrand Bakker
Senior Oracle DBA -
I am not using catalog. control file record set to 31days but retain only 1 full backup in disk.
took a backup on 23-may which got deleted from disk as of 28-may. all archive logs taken on 23-may got deleted from disk as well.
Goal : I want to restore validate for 23-may.
I restored the files from tape (both image copies and archive logs).
rman doesn't recognize the archive logs. What is needed to make rman recognize the files restored from tape.
ThanksThanks for all your replies. At first I want to validate the backups taken on 23-may and make sure they are recoverable.
rman shows 27-may , 28-may backup as recoverable and archivelogs dated on 27-may and 28-may
RMAN> list backup recoverable;
using target database control file instead of recovery catalog
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
18 Full 7.08M DISK 00:00:01 27-MAY-08
BP Key: 18 Status: AVAILABLE Compressed: NO Tag: TAG20080527T175134
Piece Name: /orabackup/boepcm/rman/online/c-3049278399-20080527-01
Control File Included: Ckp SCN: 462524 Ckp time: 27-MAY-08
SPFILE Included: Modification time: 26-MAY-08
BS Key Type LV Size Device Type Elapsed Time Completion Time
19 Full 7.08M DISK 00:00:01 28-MAY-08
BP Key: 19 Status: AVAILABLE Compressed: NO Tag: TAG20080528T175117
Piece Name: /orabackup/boepcm/rman/online/c-3049278399-20080528-00
Control File Included: Ckp SCN: 501491 Ckp time: 28-MAY-08
SPFILE Included: Modification time: 28-MAY-08
BS Key Type LV Size Device Type Elapsed Time Completion Time
20 Full 7.08M DISK 00:00:00 28-MAY-08
BP Key: 20 Status: AVAILABLE Compressed: NO Tag: TAG20080528T175136
Piece Name: /orabackup/boepcm/rman/online/c-3049278399-20080528-01
Control File Included: Ckp SCN: 501519 Ckp time: 28-MAY-08
SPFILE Included: Modification time: 28-MAY-08
RMAN> list archivelog all;
List of Archived Log Copies
Key Thrd Seq S Low Time Name
61 1 51 A 27-MAY-08 /orabackup/boepcm/rman/online/arch_D-BOEPCM_id-3049278399_S-51_T-1_A-655222143_2tjhh9d1
62 1 52 A 27-MAY-08 /orabackup/boepcm/rman/online/arch_D-BOEPCM_id-3049278399_S-52_T-1_A-655222143_2ujhh9d3
58 1 53 A 27-MAY-08 /orabackup/boepcm/rman/online/arch_D-BOEPCM_id-3049278399_S-53_T-1_A-655222143_2qjhh9co
59 1 54 A 27-MAY-08 /orabackup/boepcm/rman/online/arch_D-BOEPCM_id-3049278399_S-54_T-1_A-655222143_2rjhh9ct
60 1 55 A 28-MAY-08 /orabackup/boepcm/rman/online/arch_D-BOEPCM_id-3049278399_S-55_T-1_A-655222143_2sjhh9cv
63 1 56 A 28-MAY-08 /orabackup/boepcm/rman/online/arch_D-BOEPCM_id-3049278399_S-56_T-1_A-655222143_2vjhh9d6
64 1 57 A 28-MAY-08 /var/opt/oracle/oradata/boepcm/arch/arch_1_57_655222143.arc
65 1 58 A 28-MAY-08 /var/opt/oracle/oradata/boepcm/arch/arch_1_58_655222143.arc
Recovery Manager complete.
$
here are the files that has be restored from tape that belongs to may 23. It has datafiles, arch files, control file and spfile. how do I make these files rman aware of it and then validate it
$ ll
total 3259250
-rw-r----- 1 oracle dba 17454080 May 23 10:34 arch_D-BOEPCM_id-3049278399_S-30_T-1_A-655222143_0bjh17b8
-rw-r----- 1 oracle dba 17184768 May 23 10:34 arch_D-BOEPCM_id-3049278399_S-31_T-1_A-655222143_0cjh17ba
-rw-r----- 1 oracle dba 11603968 May 23 10:34 arch_D-BOEPCM_id-3049278399_S-32_T-1_A-655222143_0djh17bf
-rw-r----- 1 oracle dba 2048 May 23 10:34 arch_D-BOEPCM_id-3049278399_S-33_T-1_A-655222143_0ejh17bh
-rw-r----- 1 oracle dba 7143424 May 23 10:34 c-3049278399-20080522-04
-rw-r----- 1 oracle dba 7143424 May 23 10:34 c-3049278399-20080522-05
-rw-r----- 1 oracle dba 7143424 May 23 10:34 c-3049278399-20080522-06
-rw-r----- 1 oracle dba 7143424 May 23 10:34 c-3049278399-20080523-00
-rw-r----- 1 oracle dba 209723392 May 23 10:34 data_D-BOEPCM_I-3049278399_TS-BOE_DATA_FNO-4_08jh17a3
-rw-r----- 1 oracle dba 209723392 May 23 10:35 data_D-BOEPCM_I-3049278399_TS-BOE_DATA_FNO-4_0ijh395r
-rw-r----- 1 oracle dba 125837312 May 23 10:35 data_D-BOEPCM_I-3049278399_TS-SYSAUX_FNO-3_09jh17ai
-rw-r----- 1 oracle dba 125837312 May 23 10:35 data_D-BOEPCM_I-3049278399_TS-SYSAUX_FNO-3_0jjh396k
-rw-r----- 1 oracle dba 251666432 May 23 10:35 data_D-BOEPCM_I-3049278399_TS-SYSTEM_FNO-1_06jh178q
-rw-r----- 1 oracle dba 251666432 May 23 10:35 data_D-BOEPCM_I-3049278399_TS-SYSTEM_FNO-1_0gjh3948
-rw-r----- 1 oracle dba 209723392 May 23 10:35 data_D-BOEPCM_I-3049278399_TS-UNDO_TS_FNO-2_07jh179k
-rw-r----- 1 oracle dba 209723392 May 23 10:35 data_D-BOEPCM_I-3049278399_TS-UNDO_TS_FNO-2_0hjh3952
-rw-r--r-- 1 oracle dba 499 May 23 10:35 rman_hb_boepcm052220081525.log
- -
Hi!
The problem occur when trying to restore original database on another test server
Original server - Windows 2008 x64bit, Oracle Database *10.2.0.5* w/o patch,ASM configured.
Database - Archivelog mode. RMAN performs weekly database incremental level 0 backup, daily level 1 backup.
Contorl file backup occurs immediately after incremental level 0/1 database backup
The backup incremental level 0 RMAN copy restoing on:
Server - Windows 2008 x32bit, Oracle Database *10.2.0.5* w/o patch, ASM configured
input Data "on hands":
- Incremental level 0 database backup (Chkpt SCN 2978611044)
- Control file backup (controlfile_change# 2988231505 , checkpoint change# 2987947892)
- There is no oracle datafiles on test server, only instance started with appropriate parameters (SPFILE);
0) start instance
1) Restoring control file from backup (appropriate dbid has been set)
2) mount database
3) Crosscheck backup,archivelog..
4) delete expired backup,archivelog..
5) catalog backuppiece with incremental level 0 backup
6) "list backup" command display contents of backuppiece with all datafiles (Chkpt SCN 2978611044)
BS Key Type LV Size Device Type Elapsed Time Completion Time
589 Incr 0 35.59G DISK 02:13:31 07-MAR-11
BP Key: 597 Status: AVAILABLE Compressed: YES Tag: INCREMENTAL LEVEL 0 BACKUP
Piece Name: C:\BACKUP\DB0_EMCOR_1814183562_20110311_589_1_IDM6JCIS.BKP
List of Datafiles in backup set 589
File LV Type Ckp SCN Ckp Time Name
1 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/system.262.732897467
2 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/undotbs1.271.732882203
3 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/sysaux.260.732896913
4 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/undotbs2.272.732882195
5 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.274.732882177
6 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.278.732882143
7 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.261.732897211
8 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.277.732882151
9 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.276.732882159
10 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.275.732882169
11 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.269.732888789
12 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.268.732890649
13 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.267.732891909
14 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.258.732895369
15 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.259.732895663
16 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.266.732892429
17 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/usertbsp.264.732897773
18 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.265.732893801
19 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.270.732887581
20 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/system.263.732897753
21 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.273.732882187
22 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.257.732894149
23 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.295.734795693
24 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_tab.297.736591245
25 0 Incr 2978611044 07-MAR-11 +DATA/emcor/datafile/emcos_ind.298.736593189
7) restore database validate
RMAN-03002: failure of restore command at 03/16/2011 15:35:42
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 25 found to restore
RMAN-06023: no backup or copy of datafile 1 found to restore
8) list incarnation of database
List of Database Incarnations
DB Key Inc Key DB Name DB ID STATUS Reset SCN Reset Time
1 1 EMCOR 1814183562 PARENT 1577251660 06-OCT-10
2 2 EMCOR 1814183562 CURRENT 1578030113 09-OCT-10
3 3 EMCOR 1814183562 ORPHAN 1578047894 20-OCT-10
So, the DBPITR not possible.
I've tried to restore on windows 2008 x64 - result is the same.According to the SCNs your backups (controlfile,datafiles) belong to orphaned incarnation 3, NOT current incarnation 2. But you run the restore process in incarnation 2.
There was obviously a point in time recovery with resetlogs to 09-OCT-10 (Reset_SCN 1578030113), but you want to restore to SCN 2978611044.
Try
reset database to incarnation 3;
Werner -
Interesting scenario, is there a need to reset logs periodically?
10.2.0.2 Ent Ed -- Rman 10.2.0.2 -- aix 5.3
Is there a possible need to perform a reset logs periodically? This question initially came to me at the worst of times, during a recovery of a fairly important database.
If / when you have to perform an spfile or controlfile restore without a recovery catalog, if your log sequence is above 255 and your last backup was more than a day ago, is it possible your latest autobackup wont be found? In our scenario we had a day old controlfile snapshot that we used, but I'm not sure if we would have been able to recover had it not been there. From reading the 10g Recovery Manager Reference manual:
"FROM AUTOBACKUP
[autoBackupOptionList]
Restores a control file autobackup. You can only specify this option on the RESTORE CONTROLFILE and RESTORE SPFILE commands. When restoring either type of file in NOCATALOG mode, the FROM AUTOBACKUP clause is required.
RMAN begins the search on the current day or on the day specified with the SET UNTIL. If no autobackup is found in the current or SET UNTIL day, RMAN checks the previous day starting with sequence 256 (or the sequence specified by MAXSEQ) until it reaches 0. The search continues up to MAXDAYS days (default of 7, maximum of 366) from the current or SET UNTIL day. If no autobackup is found within MAXDAYS days, then RMAN signals an error and the command stops. "
The doc doesn't mention it but if you haven't ever tried setting MAXSEQ > 256, you'll get an error if you do. 256 is the upper bound for the MAXSEQ parameter. This is a snippet from my test of that:
<code>
oracle_sandbox1> rman target /
Recovery Manager: Release 10.2.0.2.0 - Production on Fri Nov 21 09:16:36 2008
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: WEBDEV (DBID=1965364971)
RMAN> show all;
using target database control file instead of recovery catalog
RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 5;
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO 'SBT_TAPE';
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE SBT_TAPE TO '%F'; # default
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE DEVICE TYPE SBT_TAPE PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE SBT_TAPE TO 1; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE SBT_TAPE TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/app/oracle/product/10.2/dbs/snapcf_webdev.f'; # default
RMAN> run {
2> allocate channel t1 type 'SBT_TAPE';
3> restore spfile to pfile '/app/oracle/product/10.2/dbs/webdev_pfile.tst' from autobackup maxseq=300;
4> }
allocated channel: t1
channel t1: sid=256 devtype=SBT_TAPE
channel t1: Veritas NetBackup for Oracle - Release 6.5 (2007111606)
Starting restore at 21-NOV-08
released channel: t1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 11/21/2008 09:23:46
RMAN-06494: MAXSEQ = 300 is out of range (0-255)
RMAN>
</code>The "sequence" here is not the Log Sequence Number that is assigned when LGWR switches from one Redo Log to another, and the previous one is archived out as an Archivelog (if running in ARCHIVELOG mode).
The "sequence" here is the sequence of the controlfile autobackup that was created. In AUTOBACKUP mode every change to the database structure (eg adding a new datafile) causes an Autobackup. Similarly, every Database Backup causes an Autobackup. Since multiple such autobackups can occur within a single day, Oracle assigns a SEQUENCE to differentiate beteween the backups created on the same day. It is this sequence that is limited to 255 .
Hemant K Chitale
http://hemantoracledba.blogspot.com -
How to confiuge RMAN offline and online back-up at a pre-determined time.
Hallo!I am an Oracle newbie currently studying the Oracle 10g Database Administration Certification.Still very new to Enterprise Manager.
My query is that can you configure an offline database back-up such that you can set up an offline backup at a pre-determined time?
I am assumng a real-office scenario where a DBA would like to have an offline back-up at night e.g. at 1 am when they are no users in the office.If the DBA can set the system such that everday at 1 am ,the instance shuts down,back-up is done e.g a backup set that can be stored on tape,then after backup the instance re-starts itself.All this should be automated such that by the time staff report in the morning ,the instance is up and running and users can work seamlessely
How can I automate this entire process using RMAN and/or Enterprise Manager or a sript to achieve this?Also,I would like to know if you can automate the same for online back-up such that it can backup while instance is still running and users are accessing the DB.
Please help me on this and I shall be infinitely grateful.Thanks in advance.Hi,
On UNIX server, you can use shell script and sql scripts that can do this job for you. Once the scripts are tested succesfully, you can put them in the crontab.
Crontab entry should reflect the time, day, week, month details as you thought to schedule it.
This link may help you. http://www.dbasupport.com/oracle/scripts/Backup_Recovery/RMAN_Backup/
Regards,
vasu -
Creating a new controlfile with datafiles in RMAN backup
Hi,
i am using oracle 10g (10.2.0.1) in RHEL5 server. i am trying to restore a RMAN backup from one server to another new server with new db name. i have taken out the spfile from RMAN autobackup and created pfile from it and edited the pfile with new dbname and directory structure and started the db in nomount with the new pfile. Now i have restored the controfile from the RMAN autobackup tried to put the database in mount state. But it failed due to the below error
RMAN-03002: failure of alter db command at 11/05/2012 21:44:56
ORA-01103: database name 'ORADB' in control file is not 'DEVDB'
Hence i shutdown the database and started the db in nomount with new pfile and tried to create the controlfile with the new db name,but it failed as it is looking for the datafiles.
ORA-01503: CREATE CONTROLFILE failed
ORA-01565: error in identifying file
'/u01/app/oracle/oradata/DEVDB/datafile/o1_mf_system_80jq0kfw_.dbf'
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
All my datafiles reside in my RMAN backup. How to get the datafiles from RMAN backup in the above scenario??
Regards,
007Hello;
The location and filename and DBIS will be different, but you need something like this :
$ORACLE_HOME/bin/rman << EOF
CONNECT TARGET /
STARTUP NOMOUNT;
SET DBID 3754763357; #DBID of PROD database
RUN
ALLOCATE CHANNEL c1 DEVICE TYPE disk format '/u01/oradata/backups';
RESTORE CONTROLFILE FROM '/u01/oradata/backups/sb_t790762003_s85_p1';
ALTER DATABASE MOUNT;
SET NEWNAME FOR DATAFILE 1 TO '/u01/app/oracle/oradata/CLONE/system01.dbf';
SET NEWNAME FOR TEMPFILE 1 TO '/u01/app/oracle/oradata/CLONE/temp01.dbf';
RESTORE DATABASE;
SWITCH DATAFILE ALL;
RECOVER DATABASE;
release channel c1;
ALTER DATABASE OPEN RESETLOGS; So you need "SET NEWNAME" for all your files
Full Example
http://www.visi.com/~mseberg/rman/restore_database_without_catalog.html
Best Regards
mseberg -
Hello,
I have 2 disctinct servers.
oracle 10gr2 in each one with the same linux red hat 4 version.
the second server is just to TEST if the backup create with the first one, works fine.
So the install in each server is exactlly the same...
same files, same path etc.
Scenario:
1 from srv one I execute a full backup with RMAN
2 I copy the file in server 2
3 I move a datafile in order to create an error
4 I test : restore database in server 2...
I get the followin error:
RMAN-03002: failure of restore command at 02/24/2008 21:15:37
RMAN-06026: some targets not found - aborting restore
RMAN-06023: no backup or copy of datafile 8 found to restore
and this command return no result:
RMAN> list backupset;
RMAN>
the file created with server 1 have been copied in the declared path into server 2...
I have execute a crosscheck backup too
RMAN> crosscheck backup;
using channel ORA_DISK_1
RMAN>
Must I copy the controle file too? in this case will I have an inconsistent error?
Thanks to help
CheersYou must have
controlfile autobackup on
(If you don't change the format it will be in $ORACLE_HOME/dbs, and the format will be c-<database id>-<yyyymmdd>_<piece>.ctl).
You must copy that file, as it has information about your most recent backup, the backup you just made.
Hth
Sybrand Bakker
Senior Oracle DBA -
Problem in recover physical standby database(Data Guard) by rman
Hello to all
I have created a physical standby database ,I want make backup of it by rman and when I lose it's datafile I can restore it ,making backup and restore is fine but in recovery I encounter some problem
scenarios is follow
1- In rman I create a backup of standby database by this command:
backup database plus archivelog delete all input;
2- I run this comman in rman for recover standby database
run{
2> set until scn 1392701;
3> restore database;
4> recover database;
5> }
(1392701 is extracted from this query "SELECT MAX(NEXT_CHANGE#)+1 UNTIL_SCN FROM V$LOG_HISTORY LH,
V$DATABASE DB WHERE LH.RESETLOGS_CHANGE#=DB.RESETLOGS_CHANGE# AND LH.RESETLOGS_TIME =
DB.RESETLOGS_TIME;" "http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/rman.htm")
but RMAN result is like this:
executing command: SET until clause
Starting restore at 13-DEC-08
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/sari/system01.dbf
restoring datafile 00002 to /u01/app/oracle/oradata/sari/undotbs01.dbf
restoring datafile 00003 to /u01/app/oracle/oradata/sari/sysaux01.dbf
restoring datafile 00004 to /u01/app/oracle/oradata/sari/users01.dbf
restoring datafile 00005 to /u01/app/oracle/oradata/sari/example01.dbf
restoring datafile 00006 to /u01/app/oracle/oradata/sari/users02.dbf
channel ORA_DISK_1: reading from backup piece /home/oracle/backup/0ek24dt4_1_1
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/backup/0ek24dt4_1_1
tag=TAG20081213T042506
channel ORA_DISK_1: restore complete, elapsed time: 00:01:07
Finished restore at 13-DEC-08
Starting recover at 13-DEC-08
using channel ORA_DISK_1
starting media recovery
archive log thread 1 sequence 116 is already on disk as file /u01/app/oracle/oradata/archive/1_116_666786084.arc
archive log thread 1 sequence 117 is already on disk as file /u01/app/oracle/oradata/archive/1_117_666786084.arc
archive log filename=/u01/app/oracle/oradata/archive/1_116_666786084.arc thread=1 sequence=116
archive log filename=/u01/app/oracle/oradata/archive/1_117_666786084.arc thread=1 sequence=117
unable to find archive log
archive log thread=1 sequence=118
RMAN-03002: failure of recover command at 12/13/2008 05:14:13
RMAN-06054: media recovery requesting unknown log: thread 1
seq 118 lowscn 1392700
3- then I decline 1392701 to 1392700 and i run this command
run{
2> set until scn 1392700;
3> restore database ;
4> recover database;
5> }
executing command: SET until clause
Starting restore at 13-DEC-08
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/sari/system01.dbf
restoring datafile 00002 to /u01/app/oracle/oradata/sari/undotbs01.dbf
restoring datafile 00003 to /u01/app/oracle/oradata/sari/sysaux01.dbf
restoring datafile 00004 to /u01/app/oracle/oradata/sari/users01.dbf
restoring datafile 00005 to /u01/app/oracle/oradata/sari/example01.dbf
restoring datafile 00006 to /u01/app/oracle/oradata/sari/users02.dbf
channel ORA_DISK_1: reading from backup piece /home/oracle/backup/0ek24dt4_1_1
channel ORA_DISK_1: restored backup piece 1
piece handle=/home/oracle/backup/0ek24dt4_1_1 tag=TAG20081213T042506
channel ORA_DISK_1: restore complete, elapsed time: 00:01:08
Finished restore at 13-DEC-08
Starting recover at 13-DEC-08
using channel ORA_DISK_1
starting media recovery
archive log thread 1 sequence 116 is already on disk as
file /u01/app/oracle/oradata/archive/1_116_666786084.arc
archive log thread 1 sequence 117 is already on disk as
file /u01/app/oracle/oradata/archive/1_117_666786084.arc
archive log filename=/u01/app/oracle/oradata/archive/1_116_666786084.arc thread=1
sequence=116archive log
filename=/u01/app/oracle/oradata/archive/1_117_666786084.arc
thread=1 sequence=117Oracle Error:
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: '/u01/app/oracle/oradata/sari/system01.dbf'
media recovery complete, elapsed time: 00:00:10
Finished recover at 13-DEC-08
4- if I run
run{
restore database;
recover database;
I will recieve that error of step 2 (RMAN-06054: media recovery requesting unknown log: thread 1
seq 118 lowscn 1392700)
5- if I just restore the database and I don't perform recovery by rman and I restart redo apply all thing seem fine
but in opening database I'll recieve ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/u01/app/oracle/oradata/sari/system01.dbf' error)
do you know what is problem
thanks
Edited by: ARKH on Dec 12, 2008 11:06 PMhi
I myself have found the solution , when I recover the standby database
it do recovery but at the end of recovery it raise the error(RMAN-06054: media recovery requesting unknown log: thread 1
seq 118 lowscn 1392700) but if I begain redo apply before open the database
and I wait till all redo apply process start and communication between the
standby database and the primary database start, then I can
open the standby database and no error will raise
but if befor restarting redo apply I open the database I'll recieve the
ORA-01152: file 1 was not restored from a sufficiently old backup
ORA-01110: data file 1: '/u01/app/oracle/oradata/sari/system01.dbf' error
thanks -
RMAN recovery from tape and disk?
Hey Guys,
Here is my scenario: -
I have Oracle 10g and I am using RMAN to backup to disk and then I use Networker to backup on tapes from disk (retention is set to 30 days on tapes). On RMAN - my retention policy is set to recovery window of 5 days after which it deletes the obsolete backup from disk and updates the control file.
My Questions:
1. If I have to recover any datafile or tablespace 20 days ago how can I restore it on Production. Since I am also backing up control files on tapes but my current control file will not have 20 days old information. Is there any way that I can restore my old backup?
2.How can I test my tape backup which is older than 5 days. In other words how can I restore my database from tape on another server/
Please suggest.If you need to restore the whole database to a point in time that is 20 days old, you "only" need:
1. to identify the right control file backup
2. restore this control file backup with Networker
3. start the instance in mount mode
4. list required datafiles and archived redo logs backup sets listed in this control file with LIST BACKUP
5. restore these backup sets with Networker
6. restore and recover database with RMAN with the right SET UNTIL clause.
If you need to restore only 1 tablespace, that's Tablespace Point In Time Recovery (TSPITR) and is another story.
I don't think you can only restore 1 datafile that is 20 days old and leave other datafiles up-to-date (unless there is only 1 datafile in the tablespace and in this case this is TSPITR). -
Problem in recovery from RMAN backup in case of disk failure
Hi
I have Oracle 9.2.0.1.0 on Windows. Full Hot RMAN backup of database is scheduled on daily basis. I am taking backup on disks. And then i do manually copy them on tapes. If any disk failure occurs than can i recover database completely in this scenario. If tried restoing that backup on different machine as given below
set ORACLE_SID=<name>
rman target sys/<pwd>@ORACLE_SID nocatalog
startup nomount
restore spfile
create pfile from spfile
startup nomount pfile
alter database mount
restore database
Everything worked fine till above steps. Now i will execute last step.
recover database
Here it gives error:-RMAN-06054: media recovery requesting unknown log: thread 1 scn 264750
Still i typed
alter database open resetlogs
Now i can open my database, But is it recovered completely? Or there is loss of some data? Why it is giving this error?
Thanks in advance. Waiting for reply.I can understand the confusion with this whole concept.
What I meant by all archivelogs is all the archivelogs that were backed up with the backup itself. Again, it is essential to ensure that you archive the current redo log AFTER the backup is performed and then back those archivelogs too. Good thing is, RMAN will take care of this for you if you backup the archivelogs with the BACKUP DATABASE command and/or backup the archivelogs AFTER you run the BACKUP DATABASE command.
Once you've mounted the controlfile and CATALOG the archivelogs, you can go into SQL*Plus and issue the following query:
select SEQUENCE#, FIRST_CHANGE#, NEXT_CHANGE# from v$archived_log
order by FIRST_TIME;This will tell you what archivelog is the latest. Logs generated during the backup may also provide the necessary information. Performing Disaster Recovery should help to understand the full process.
The ONLINELOG directory in FRA is only populated if you've configured your redo logs to be stored there. However, you are on 9i...right? If so 9i doesn't utilize a FRA.
HTH
Edited by: ebrian on Oct 3, 2008 1:08 PM -
Hi Guys,
I'm having 15 days of backup in RMAN Catalog and my initial RMAN config is as per below:
CONFIGURE RETENTION POLICY TO REDUNDANCY 10;
Since I only want to keep the backup for latest 10 days, so I have changed the config to:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 10 DAYS;
But after the change, when I ran report obsolete; , I'm not seeing any obsolete backups. Suppose in this case, I should be able to see the obsolete backups for first 5 days. This cause me unable to delete the obsolete backups and my server is running out of space.
Highly appreciate your input in this matter.
Thanks,
NesanFrom my observation (for RECOVERY WINDOW):
Level 0 backup won't get obsoletes until all the level 1 backups get obsolete.
Wrong perception
Setting RMAN recovery window to 2 days make any backup older than 2 days become obsolete is a myth.
See below the scenario which make you understand what need to consider when you are setting RMAN recovery window.
For Non Incremental Level backup
================================
Assume no backup exist before 13th of Oct
Assume recovery window is 2
POR = Point of recoverability
date backup type status POR (Current date-recovery window)
13-OCT-2009 Full backup No obsolete found 13-OCT-2009-2 = 11-OCT-2009
15-OCT-2009 Full backup No obsolete found 15-OCT-2009-2 = 13-OCT-2009
16-OCT-2009 Full backup No obsolete found 16-OCT-2009-2 = 14-OCT-2009See above table data on 16-OCT-2009 , POR is 14-OCT-2009 and you dont have any backup on 14th of oct within yours backup schedule, in this case 13th Oct backup will enable you POR of 14th Oct , 13th Oct backup will not be marked obsoleted
What would be happen on 17th of october
date backup type status POR (Current date-recovery window=POR)
13-OCT-2009 Full backup No obsolete found 13-OCT-2009-2 = 11-OCT-2009
15-OCT-2009 Full backup No obsolete found 15-OCT-2009-2 = 13-OCT-2009
16-OCT-2009 Full backup No obsolete found 16-OCT-2009-2 = 14-OCT-2009
17-OCT-2009 No backup 13th Oct Full backup 17-OCT-2009-2 = 15-OCT-2009
will be marked
obsoletedSee above table data on 17-OCT-2009 , POR is 15-OCT-2009 you have backup on 15th of oct within yours backup schedule, in this case 13th Oct backup will not be needed for the point of recoverability for 15th of Oct ,15th Oct backup already exist for the POR,15th Oct backup will provide you POR and hence 13th Oct backup will be marked obsoleted.
For Incremental Level backup
================================
Assume no backup exist before 13th of Oct
Assume recovery window is 2
POR = Point of recoverability
date backup type status POR (Current date-recovery window)
13-OCT-2009 L0 No obsolete found 13-OCT-2009-2 = 11-OCT-2009
14-OCT-2009 L1 No obsolete found 14-OCT-2009-2 = 12-OCT-2009
15-OCT-2009 L1 No obsolete found 15-OCT-2009-2 = 13-OCT-2009
16-OCT-2009 L1 No obsolete found 16-OCT-2009-2 = 14-OCT-2009See above table data on 16-OCT-2009 , POR is 14-OCT-2009 you have backup on 14th of oct within yours backup schedule but this backup is L1 not L0 , in this case 13th Oct backup will be needed for the point of recoverability for 14th of Oct ,13th Oct backup will not be marked obsoleted.
date backup type status POR (Current date-recovery window)
13-OCT-2009 L0 No obsolete found 13-OCT-2009-2 = 11-OCT-2009
14-OCT-2009 L1 No obsolete found 14-OCT-2009-2 = 12-OCT-2009
15-OCT-2009 L1 No obsolete found 15-OCT-2009-2 = 13-OCT-2009
16-OCT-2009 L1 No obsolete found 16-OCT-2009-2 = 14-OCT-2009
17-OCT-2009 L1 No obsolete found 17-OCT-2009-2 = 15-OCT-2009See above table data on 17-OCT-2009 , POR is 15-OCT-2009 you have backup on 15th of oct within yours backup schedule but this backup is L1 not L0 ,in this case 13th Oct backup will be needed for the point of recoverability for 15th of Oct ,13th Oct backup will not me marked obsoleted yet.
date backup type status POR (Current date-recovery window)
13-OCT-2009 L0 No obsolete found 13-OCT-2009-2 = 11-OCT-2009
14-OCT-2009 L1 No obsolete found 14-OCT-2009-2 = 12-OCT-2009
15-OCT-2009 L1 No obsolete found 15-OCT-2009-2 = 13-OCT-2009
16-OCT-2009 L1 No obsolete found 16-OCT-2009-2 = 14-OCT-2009
17-OCT-2009 L1 No obsolete found 17-OCT-2009-2 = 15-OCT-2009
18-OCT-2009 L1 No obsolete found 18-OCT-2009-2 = 16-OCT-2009
19-OCT-2009 L1 No obsolete found 19-OCT-2009-2 = 17-OCT-2009
20-OCT-2009 L0 No obsolete found 20-OCT-2009-2 = 18-OCT-2009
21-OCT-2009 No backup No obsolete found 21-OCT-2009-2 = 19-OCT-2009
22-OCT-2009 No backup obsolete found 22-OCT-2009-2 = 20-OCT-2009
13th L0 and its alls
L1 See above table data on 22-OCT-2009 , POR is 20-OCT-2009 you have L0 backup on 20th of oct within yours backup schedule and this backup is L0 not L1 ,in this case 20th Oct backup will be needed for the point of recoverability for 20th of Oct ,before 20th L0 backup 13th L0 backup will marked obsoleted and hence alls its incremental level backup will be marked as obsoleted.
Khurram
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