| Backup And Recovery [message #257279] |
Tue, 07 August 2007 23:50  |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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hi,
can v able to backup of control file wen the database is not open.
&
if any of my archivelog file is corrupted r lost can i able to take backup of tat file.
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| backup [message #257281 is a reply to message #257279] |
Wed, 08 August 2007 00:07  |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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can i able to take backup of control file,
when the database is not open.
and
is it able to restore the archivelog file after backup had been done,when archivelog file is lost or corrupted.
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| Re: backup [message #257293 is a reply to message #257281] |
Wed, 08 August 2007 00:58 |
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Michel Cadot
Messages: 68716
Registered: March 2007
Location: Saint-Maur, France, https...
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Senior Member
Account Moderator |
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| Quote: | can i able to take backup of control file, when the database is not open
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If you mean with "alter database" statement, yes you just need to be in mounted state, open is not mandatory.
| Quote: | is it able to restore the archivelog file after backup had been done,when archivelog file is lost or corrupted
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If you have a backup, yes, from the backup (if it is not corrupted).
If you have not or a corrupted backup, no.
Regards
Michel
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| Re: Backup And Recovery [message #257360 is a reply to message #257279] |
Wed, 08 August 2007 02:57 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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i had taken the backup of controlfile and archivelog file by using the below command.now i lost my control file and archivelog file,can i able to recover from the backup.
if it is what is the command?
RMAN> run { allocate channel t1 type disk;
2> backup current controlfile format '/u01/oracle/archive/controlf_%d_%u_%s';
3> release channel t1;}
RMAN> run { allocate channel t1 type disk;
2> backup archivelog all format '/u01/oracle/archive/archive_%d_%u_%s' delete input;
3> release channel t1;}
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| Re: Backup And Recovery [message #257361 is a reply to message #257357] |
Wed, 08 August 2007 02:59 |
Arju
Messages: 1554
Registered: June 2007
Location: Dhaka,Bangladesh. Mobile:...
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Senior Member |
 
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| ara.oracle wrote on Wed, 08 August 2007 13:53 | just post me the command.
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I even don't know your requirement. It totally depends on you how you will recover.
from autobackup,
Recover controlfile from autobackup;
From tag,
Recover database archivelog tag <tagname>; [Updated on: Wed, 08 August 2007 03:05] by Moderator Report message to a moderator |
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| Re: Backup And Recovery [message #257507 is a reply to message #257279] |
Wed, 08 August 2007 08:56 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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kindly give a solution for this
RMAN> connect target/
connected to target database: DBSIB (DBID=2610068098)
RMAN> run {
2> allocate channel t1 type disk;
3> backup archivelog all format '/orcl/oracle/product/database/flash_recovery_area/DBSIB/archivelog_%d%u%s' delete input;
4> release channel t1;
5> }
using target database control file instead of recovery catalog
allocated channel: t1
channel t1: sid=141 devtype=DISK
Starting backup at 09-JUL-07
current log archived
released channel: t1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 07/09/2007 03:57:09
RMAN-06059: expected archived log not found, lost of archived log compromises recoverability
ORA-19625: error identifying file /orcl/oracle/product/database/flash_recovery_area/DBSIB/archivelog/2007_07_09/o1_mf_1_37_392pn13r_.arc
ORA-27037: unable to obtain file status
Linux Error: 2: No such file or directory
Additional information: 3
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| Re: Backup And Recovery [message #257528 is a reply to message #257520] |
Wed, 08 August 2007 10:02 |
Mohammad Taj
Messages: 2412
Registered: September 2006
Location: Dubai, UAE
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Senior Member |
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Hi,
Backup Retention Policies
RMAN considers backups of datafiles and control files as obsolete, that is, no longer needed for recovery, according to criteria that you specify in the CONFIGURE command. You can then use the REPORT OBSOLETE command to view obsolete files and DELETE OBSOLETE to delete them.
RMAN>report obsolete;
RMAN>delete obsolete;
If you have a flash recovery area configured, however, then the database automatically deletes unnecessary files from the flash recovery area based on its internal disk quota rules. The disk quota rules are distinct from the backup retention policy rules, but the database will never delete files in violation of the retention policy to satisfy the disk quota.
The term obsolete does not mean the same as expired.
RMAN>crosscheck backup;
RMAN> crosscheck archivelog all;
In short, obsolete means "not needed," whereas expired means "not found."
RMAN> delete expired backup;
RMAN> delete expired archivelog all;
The CROSSCHECK command does not delete operating system files or remove repository records. You must use the DELETE command for these operations
[Updated on: Wed, 08 August 2007 10:04] Report message to a moderator |
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| Re: Backup And Recovery [message #257674 is a reply to message #257279] |
Thu, 09 August 2007 00:17 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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when am taking backup of archivelog am getting the backup of archive log as dbf file like below.
please tell me how it is dbf?
[oracle@infra archivelog]$ ls
1_46_627261832.dbf 1_47_627261832.dbf 1_48_627261832.dbf
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| Re: Backup And Recovery [message #257685 is a reply to message #257279] |
Thu, 09 August 2007 00:33 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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this is how i had taken the backup of archive plus datafile.
and am getting archive file as dbf.
SQL> connect sys/sys as sysdba
Connected to an idle instance.
SQL> startup mount
ORACLE instance started.
Total System Global Area 281018368 bytes
Fixed Size 1218968 bytes
Variable Size 113247848 bytes
Database Buffers 163577856 bytes
Redo Buffers 2973696 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
SQL> alter database open;
Database altered.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /orcl/oracle/product/database/flash_recovery_area/DBSIB/archivelog
Oldest online log sequence 44
Next log sequence to archive 46
Current log sequence 46
SQL>
RMAN> run {
2> allocate channel t1 type disk;
3> backup database plus archivelog;
4> release channel t1;
5> }
released channel: ORA_DISK_1
allocated channel: t1
channel t1: sid=141 devtype=DISK
Starting backup at 09-JUL-07
current log archived
channel t1: starting archive log backupset
channel t1: specifying archive log(s) in backup set
input archive log thread=1 sequence=46 recid=66 stamp=627503181
input archive log thread=1 sequence=47 recid=67 stamp=627503285
channel t1: starting piece 1 at 09-JUL-07
channel t1: finished piece 1 at 09-JUL-07
piece handle=/orcl/oracle/product/database/flash_recovery_area/DBSIB/backupset/2007_07_09/o1_mf_annnn_TAG20070709T182805_394d6yv7_.bkp tag=TAG20070709T182805 comment=NONE
channel t1: backup set complete, elapsed time: 00:00:02
Finished backup at 09-JUL-07
Starting backup at 09-JUL-07
channel t1: starting full datafile backupset
channel t1: specifying datafile(s) in backupset
input datafile fno=00001 name=/orcl/oracle/product/oradata/dbsib/system01.dbf
input datafile fno=00003 name=/orcl/oracle/product/oradata/dbsib/sysaux01.dbf
input datafile fno=00002 name=/orcl/oracle/product/oradata/dbsib/undotbs01.dbf
input datafile fno=00004 name=/orcl/oracle/product/oradata/dbsib/users01.dbf
channel t1: starting piece 1 at 09-JUL-07
channel t1: finished piece 1 at 09-JUL-07
piece handle=/orcl/oracle/product/database/flash_recovery_area/DBSIB/backupset/2007_07_09/o1_mf_nnndf_TAG20070709T182808_394d70v1_.bkp tag=TAG20070709T182808 comment=NONE
channel t1: backup set complete, elapsed time: 00:01:15
channel t1: starting full datafile backupset
channel t1: specifying datafile(s) in backupset
including current control file in backupset
including current SPFILE in backupset
channel t1: starting piece 1 at 09-JUL-07
channel t1: finished piece 1 at 09-JUL-07
piece handle=/orcl/oracle/product/database/flash_recovery_area/DBSIB/backupset/2007_07_09/o1_mf_ncsnf_TAG20070709T182808_394d9fvy_.bkp tag=TAG20070709T182808 comment=NONE
channel t1: backup set complete, elapsed time: 00:00:03
Finished backup at 09-JUL-07
Starting backup at 09-JUL-07
current log archived
channel t1: starting archive log backupset
channel t1: specifying archive log(s) in backup set
input archive log thread=1 sequence=48 recid=68 stamp=627503367
channel t1: starting piece 1 at 09-JUL-07
channel t1: finished piece 1 at 09-JUL-07
piece handle=/orcl/oracle/product/database/flash_recovery_area/DBSIB/backupset/2007_07_09/o1_mf_annnn_TAG20070709T182927_394d9k17_.bkp tag=TAG20070709T182927 comment=NONE
channel t1: backup set complete, elapsed time: 00:00:02
Finished backup at 09-JUL-07
released channel: t1
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| Re: Backup And Recovery [message #257703 is a reply to message #257279] |
Thu, 09 August 2007 01:01 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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how to change this value?
SQL> show parameter log_archive_format;
NAME TYPE VALUE
------------------------------------ ----------- ----------------------------
log_archive_format string %t_%s_%r.dbf
thanks
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| Re: Backup And Recovery [message #257706 is a reply to message #257279] |
Thu, 09 August 2007 01:04 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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normally when am taking backup am using this command.
and my backup files are stored in a particular location.
plz tell me can i able to change the location?
if it is just give me the command for tat.
RMAN> run {
2> allocate channel t1 type disk;
3> backup database plus archivelog;
4> release channel t1;
5> }
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| Re: Backup And Recovery [message #257727 is a reply to message #257279] |
Thu, 09 August 2007 01:43 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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i had done what u had said ,but i am facing this error
what to do?
plz need a kind reply
SQL> show parameter log_archive_format;
NAME TYPE VALUE
------------------------------------ ----------- ----------------------------
log_archive_format string %t_%s_%r.dbf
SQL> alter system set log_archive_format = 'format.arc' scope=spfile;
System altered.
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> connect sys/sys as sysdba
Connected to an idle instance.
SQL> startup mount
ORA-19905: log_archive_format must contain %s, %t and %r
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| Re: Backup And Recovery [message #257739 is a reply to message #257279] |
Thu, 09 August 2007 01:57 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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[oracle@infra ~]$ sqlplus /nolog
i cant able to mount into database.
plz need a kind reply
SQL*Plus: Release 10.2.0.1.0 - Production on Mon Jul 9 21:09:08 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect sys/sys as sysdba
Connected to an idle instance.
SQL> startup mount
ORA-19905: log_archive_format must contain %s, %t and %r
SQL> alter system set log_archive_format='format,arc' scope=spfile;
alter system set log_archive_format='format,arc' scope=spfile
*
ERROR at line 1:
ORA-01034: ORACLE not available
SQL>
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| Re: Backup And Recovery [message #257775 is a reply to message #257279] |
Thu, 09 August 2007 02:48 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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RMAN> restore controlfile from autobackup;
i had taken the AUTOBACKUP of controlfile and spfile.
and i wantedly deleted one control file.
then i try to restore my control file by using the below command
but i got the following errors.
plz tell me how to restore my control file
and am not able to mount my database without controlfile
RMAN> restore controlfile from autobackup;
RMAN-06900: WARNING: unable to generate V$RMAN_STATUS or V$RMAN_OUTPUT row
RMAN-06901: WARNING: disabling update of the V$RMAN_STATUS and V$RMAN_OUTPUT rows
ORACLE error from target database:
ORA-03135: connection lost contact
Starting restore at 09-JUL-07
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of restore command at 07/09/2007 22:01:42
ORA-03114: not connected to ORACLE
RMAN>
thanks for reply.
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| Re: Backup And Recovery [message #257793 is a reply to message #257279] |
Thu, 09 August 2007 03:17 |
ara.oracle
Messages: 142
Registered: August 2007
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Senior Member |
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without control file i cant able to mount the database,it is showing the following error.
plz reply
SQL> connect sys/sys as sysdba
Connected.
SQL> startup mount;
ORA-01081: cannot start already-running ORACLE - shut it down first
SQL> startup force mount;
ORACLE instance started.
Total System Global Area 281018368 bytes
Fixed Size 1218968 bytes
Variable Size 113247848 bytes
Database Buffers 163577856 bytes
Redo Buffers 2973696 bytes
ORA-00205: error in identifying control file, check alert log for more info
SQL>
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) 2 Votes
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