REDOLOG Files Miising

I am user of Oracle 9i Standard version. This is loaded in my production server , which runs in 24*7*365 mode. Suddenly my user started complaining the database geting hanged. When i tries to login to system user through SQL User then it returns with an error " ORA-01033- ORACLE Initialisation or Shutdown in Progess". After restarting the machine we found out that REDOLOG01 file is missing from my oradata directory.
Please advice.

Hey
If your instance is other state then open ,you can connect to database by bypassing listener
in unix
ORACLE_SID=<sid_name>
export ORACLE_SID;
sqlplus " / as sysdba" or
sqlplus "sys/<pwd_sys> as sysdba"
sqlplus " / as sysdba"
.Check status of your instance through lsnrctl status <listener_name>.Plz paste your alert_<SID>.log here.
Hope this will help you.
regards
Tinku
Edited by: Tinku on Oct 3, 2008 11:29 PM

Similar Messages

How to read the contents of redolog files?

Hi,
I would want to read the contents of the redolog files on my database.
Actually, I can't because these files are binary files*. I would want to know if there is a way to read these redolog files , if for example Oracle has tools to learn these redolog files.
Thanks.

In order to read the content of the Redo Log files, you should use Logminer Utility
Please refer to the documentation for more information:
[Using LogMiner to Analyze Redo Log Files|http://download.oracle.com/docs/cd/B19306_01/server.102/b14215/logminer.htm#SUTIL019]
Kamran Agayev A. (10g OCP)
http://kamranagayev.wordpress.com
[Step by Step install Oracle on Linux and Automate the installation using Shell Script |http://kamranagayev.wordpress.com/2009/05/01/step-by-step-installing-oracle-database-10g-release-2-on-linux-centos-and-automate-the-installation-using-linux-shell-script/]

All redolog files lost in oracle 8i

Hi,
i had a disk corruption where i lost all redolog files and my db was down how i can make db up.
workaround:
in os level i manually created the lost redo log files (same path what was earlier):
sql>startup mount;
sql>recover database untill cancel;
sql>alter database open resetlogs;
is it works ?

Hi,
i foolowed what you said .removing the files you manually created,
SQL> startup mount;
ORACLE instance started.
Total System Global Area 488082184 bytes
Fixed Size 731912 bytes
Variable Size 268435456 bytes
Database Buffers 218103808 bytes
Redo Buffers 811008 bytes
Database mounted.
SQL> recover database until cancel;
ORA-00279: change 1578125068 generated at 03/06/2009 06:22:35 needed for thread
1
ORA-00289: suggestion : /oratranslog/archive/1_34930.dbf
ORA-00280: change 1578125068 for thread 1 is in sequence #34930
Specify log: {<RET>=suggested | filename | AUTO | CANCEL}
ORA-00308: cannot open archived log '/oratranslog/archive/1_34930.dbf'
ORA-27037: unable to obtain file status
SVR4 Error: 2: No such file or directory
Additional information: 3
ORA-01547: warning: RECOVER succeeded but OPEN RESETLOGS would get error below
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/oracle1/oradata/voipdb/system01.dbf'
SQL> alter database open resetlogs;
alter database open resetlogs
ERROR at line 1:
ORA-01194: file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/oracle1/oradata/voipdb/system01.dbf'
what shall i do next

Increase redolog file size - Merits and Demerits

Hi
Currently, we are in 9.2.0.7.0 oralce version and having redolog file sizes (Mirrlog and origlog) of 100MB.
Now we are planning to increase the size to 200 MB so that we could reduce the number of archive log files.
Can you please let me know what would be the demerits of bigger size in redolog files?
And also let me know the step by step process how to increase the size of redolog files?
Thank you

> I understand what you are saying but in our situation our backup policy is one time online backup and one time offline backup in a week.....Online backup is on Thu and Offline backup is on Sunday.......
>
> In case of system crash if needed we would need to apply archive log files; If we have lesser number of archive logs; recover database would be faster.......correct me if am wrong.
You are wrong.
Ok, let's see an example:
You took your backup on sunday midnight and your DB needs recovery on wednesday.
Meanwhile you created say, 800 M worth of redolog data per day.
That sums up to (monday, tuesday, wednesday) 3x800 M = 2400 M that need to be recovered.
Going with your current setup (100 M redolog size) the largest archivelog file can be 100 M, makes 24 files to restore and recover.
After changing the redologsize to, say 200 M, you only have 12 files to restore and recover.
But know what? It's still 2400 M of data.
Since you will likely not put every archivelog file to its own tape, but rather change the tape each day (just an assumption) or maybe don't use manually operated tapes at all, the little latency overhead in handling tapes doesn't count in to your overall recovery time.
All in all you still need to feed the same amount of data to the recovery process.
Apart from this:
if you're discussing short recovery times, than you'd never perform just two data backups a week.
You'd make online backups every day - maybe incremental ones.
You' d use the flashback recovery area.
An additional thing often overlooked: in many cases the ultimate performance killer for a restore/recovery scenario is not the technology in use.
It's that when the case is there, the DBA is not sure anymore, what do to.
He wonders:
Where the good backups are.
How to get them back from the 3rd party backup tool.
How to check them.
Where to get a different storage system because the original one is broken.
How to figure out what needs recovery
How the tools work
By ensuring that you always master the theory and the how to of restore and recovery - that's how you make it quick and painless (and dataloss-less).
regards,
Lars

When are Redolog files reset to zero size? Manual reset possible?

As far as I know redolog files contain all stuff which is changed during operation of an Oracle database.
However I wonder if there are events when these files are AUTOMATICALLY reset to zero.
I guess it is when I do a full offline backup.
Is this correct?
Are there any other events when this happens automatically ?
How can I manually reset/initialize Redolog files to an empty state?
Peter

What did you mean empty redo logfile?
if you mean zero size on redolog files....
We can not reset redo log files to empty (zero).
I guess it is when I do a full offline backup.That mean your database offline... no operation, so no redo log generate. but not mean you can make redo log empty anyway...
If you mean redo log file no need for instance recovery.
redo log groups have "INACTIVE" status -> is no longer needed for instance recovery. It may be in use for media recovery. It might or might not be archived.
check from v$log
UNUSED - Online redo log has never been written to. This is the state of a redo log that was just added, or just after a RESETLOGS, when it is not the current redo log.
CURRENT - Current redo log. This implies that the redo log is active. The redo log could be open or closed.
ACTIVE - Log is active but is not the current log. It is needed for crash recovery. It may be in use for block recovery. It may or may not be archived.
CLEARING - Log is being re-created as an empty log after an ALTER DATABASE CLEAR LOGFILE statement. After the log is cleared, the status changes to UNUSED.
CLEARING_CURRENT - Current log is being cleared of a closed thread. The log can stay in this status if there is some failure in the switch such as an I/O error writing the new log header.
INACTIVE - Log is no longer needed for instance recovery. It may be in use for media recovery. It might or might not be archived.;)

Who will update control file when renaming a redolog file

Hi when we rename a redolog file in mount state of database using the following command
ALTER DATABASE
RENAME FILE '/diska/logs/log1a.rdo', '/diska/logs/log2a.rdo'
TO '/diskc/logs/log1c.rdo', '/diskc/logs/log2c.rdo';
how the new location and new name of redo log files will be updated to control file and who will update that inforamtion
thanks in advance.

Where did you get this?
oracle    4774 4733 0 12:04 pts/0    00:00:00 sqlplus   as sysdba
oracle    4797     1 0 12:04 ?        00:00:00 ora_pmon_DB1
oracle    4799     1 0 12:04 ?        00:00:00 ora_vktm_DB1
oracle    4803     1 0 12:04 ?        00:00:00 ora_diag_DB1
oracle    4805     1 0 12:04 ?        00:00:00 ora_dbrm_DB1
oracle    4807     1 0 12:04 ?        00:00:00 ora_psp0_DB1
oracle    4811     1 0 12:04 ?        00:00:00 ora_dia0_DB1
oracle    4813     1 0 12:04 ?        00:00:00 ora_mman_DB1
oracle    4815     1 0 12:04 ?        00:00:00 ora_dbw0_DB1
oracle    4817     1 0 12:04 ?        00:00:00 ora_lgwr_DB1
oracle    4819     1 0 12:04 ?        00:00:00 ora_ckpt_DB1
oracle    4821     1 0 12:05 ?        00:00:00 ora_smon_DB1
oracle    4823     1 0 12:05 ?        00:00:00 ora_reco_DB1
oracle    4825     1 0 12:05 ?        00:00:00 ora_mmon_DB1
oracle    4827     1 0 12:05 ?        00:00:00 ora_mmnl_DB1
oracle    4829     1 0 12:05 ?        00:00:00 ora_d000_DB1
oracle    4831     1 0 12:05 ?        00:00:00 ora_s000_DB1
oracle    4855 4774 0 12:05 ?        00:00:00 oracleDB1 (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
oracle    4858 4729 0 12:05 pts/1    00:00:00 bash
oracle    4875 4858 0 12:05 pts/1    00:00:00 ps -fu oracleA ps output. The db is in mounted state.
Dim

Restore with brtools - need more archive redolog files

Good day
I will make online backup my oracle database with brtools
(Oracle 10g, BRBACKUP 7.00 (39))
brbackup -c -d util_file_online -t online -m all -u /
bdztoexw anf 2009-01-23 15.27.40 ; 2009-01-23 16.47.21 ; 1 ............... 57 56 0 17671 226215105 17676 226268039 ALL
online util_file_online -
7.00 (39)
BR0280I BRBACKUP time stamp: 2009-01-23 16.43.38
BR0232I 57 of 57 files saved by backup utility
BR0230I Backup utility called successfully
BR0280I BRBACKUP time stamp: 2009-01-23 16.43.40
BR0340I Switching to next online redo log file for database instance VPP ...
BR0321I Switch to next online redo log file for database instance VPP successful
BR0117I ARCHIVE LOG LIST after backup for database instance VPP
Parameter Value
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /oracle/VPP/oraarch/VPParch
Archive format %t_%s_%r.dbf
Oldest online log sequence 17673
Next log sequence to archive 17676
Current log sequence 17676 SCN: 226268039
Database block size 8192 Thread: 1
Current system change number 226268041 ResetId: 603135330
After brbackup I'll do "brarchive" in the same script:
brarchive -c -d util_file -sd -u / > $br_out_file
#ARCHIVE.. 17670 /oracle/VPP/oraarch/VPParch1_17670_603135330.dbf ; 2009-01-23 15.10.36 ; 43450368 226202112 1
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............
#COPIED... ........ ... ................. .......... ........ ........... ............
#DELETED.. adztolzu svd 2009-01-23 16.51.11
#ARCHIVE.. 17671 /oracle/VPP/oraarch/VPParch1_17671_603135330.dbf ; 2009-01-23 15.36.12 ; 43430912 226215105 1
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............
#COPIED... ........ ... ................. .......... ........ ........... ............
#DELETED.. adztolzu svd 2009-01-23 16.51.11
#ARCHIVE.. 17672 /oracle/VPP/oraarch/VPParch1_17672_603135330.dbf ; 2009-01-23 15.40.27 ; 43515904 226227928 1
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............
#COPIED... ........ ... ................. .......... ........ ........... ............
#DELETED.. adztolzu svd 2009-01-23 16.51.11
#ARCHIVE.. 17673 /oracle/VPP/oraarch/VPParch1_17673_603135330.dbf ; 2009-01-23 15.41.06 ; 43729408 226238784 1
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............
#COPIED... ........ ... ................. .......... ........ ........... ............
#DELETED.. adztolzu svd 2009-01-23 16.51.11
#ARCHIVE.. 17674 /oracle/VPP/oraarch/VPParch1_17674_603135330.dbf ; 2009-01-23 16.06.06 ; 43450368 226250315 1
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............
#COPIED... ........ ... ................. .......... ........ ........... ............
#DELETED.. adztolzu svd 2009-01-23 16.51.11
#ARCHIVE.. 17675 /oracle/VPP/oraarch/VPParch1_17675_603135330.dbf ; 2009-01-23 16.43.40 ; 13243904 226263012 1
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............
#COPIED... ........ ... ................. .......... ........ ........... ............
#DELETED.. adztolzu svd 2009-01-23 16.51.11
VPP util_file adztolzu svd 2009-01-23 16.47.22 ; 2009-01-23 16.54.47 ; 1 ........... 17670 17675 0 0 ------- 7.00 (39) @0603135330
BR0280I BRARCHIVE time stamp: 2009-01-23 16.51.11
BR0232I 6 of 6 files saved by backup utility
BR0230I Backup utility called successfully
BR0016I 6 offline redo log files processed, total size 220.128 MB
Then I take tape with this data and try restore only from this tape
all datafiles and relevant archive redologs files (17670-17675) restored without errors
but in the end ERROR occurred
ERROR at line 1:
ORA-01195: online backup of file 1 needs more recovery to be consistent
ORA-01110: data file 1: '/oracle/VPP/sapdata1/system_1/system.data1'
ORA-00279: change 226268039 generated at 01/23/2009 16:43:40 needed for thread
1
ORA-00289: suggestion : /oracle/VPP/oraarch/VPParch1_17676_603135330.dbf
ORA-00280: change 226268039 for thread 1 is in sequence #17676
My online backup ended, before switch to redolog 17676
Why I need this file? I think files (17670-17675) should be enough?
Besides, the change 226268039 generated exactly at moment Switching to next online redo.
Can I try open database regardless of this error?
Thank you for your prompt response
Andrey Timofeev
Edited by: Andrey Timofeev on Jul 21, 2009 3:52 PM

Good day, sorry for TAG. Once more time. 
I will make online backup my oracle database with brtools 
(Oracle 10g, BRBACKUP 7.00 (39))
brbackup -c -d util_file_online -t online -m all -u /
<HR>
bdztoexw anf 2009-01-23 15.27.40 2009-01-23 16.47.21 1 ............... 57 56 0 17671 226215105 17676 226268039 ALL 
online util_file_online 
<HR>
 BR0280I BRBACKUP time stamp: 2009-01-23 16.43.38
<HR>
 
BR0232I 57 of 57 files saved by backup utility 
BR0230I Backup utility called successfully
BR0280I BRBACKUP time stamp: 2009-01-23 16.43.40 
BR0340I Switching to next online redo log file for database instance VPP ... 
BR0321I Switch to next online redo log file for database instance VPP successful
BR0117I ARCHIVE LOG LIST after backup for database instance VPP
Parameter Value
Database log mode Archive Mode 
Automatic archival Enabled 
Archive destination /oracle/VPP/oraarch/VPParch 
Archive format %t_%s_%r.dbf 
Oldest online log sequence 17673 
Next log sequence to archive 17676 
Current log sequence 17676 SCN: 226268039 
Database block size 8192 Thread: 1 
Current system change number 226268041 ResetId: 603135330
<HR>
 
After brbackup I'll do "brarchive" in the same script:
brarchive -c -d util_file -sd -u / > $br_out_file
<HR>
#ARCHIVE.. 17670 /oracle/VPP/oraarch/VPParch1_17670_603135330.dbf 2009-01-23 15.10.36 43450368 226202112 1 
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............ 
#COPIED... ........ ... ................. .......... ........ ........... ............ 
#DELETED.. adztolzu svd 2009-01-23 16.51.11 
# 
#ARCHIVE.. 17671 /oracle/VPP/oraarch/VPParch1_17671_603135330.dbf 2009-01-23 15.36.12 43430912 226215105 1 
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............ 
#COPIED... ........ ... ................. .......... ........ ........... ............ 
#DELETED.. adztolzu svd 2009-01-23 16.51.11 
# 
#ARCHIVE.. 17672 /oracle/VPP/oraarch/VPParch1_17672_603135330.dbf 2009-01-23 15.40.27 43515904 226227928 1 
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............ 
#COPIED... ........ ... ................. .......... ........ ........... ............ 
#DELETED.. adztolzu svd 2009-01-23 16.51.11 
# 
#ARCHIVE.. 17673 /oracle/VPP/oraarch/VPParch1_17673_603135330.dbf 2009-01-23 15.41.06 43729408 226238784 1 
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............ 
#COPIED... ........ ... ................. .......... ........ ........... ............ 
#DELETED.. adztolzu svd 2009-01-23 16.51.11 
# 
#ARCHIVE.. 17674 /oracle/VPP/oraarch/VPParch1_17674_603135330.dbf 2009-01-23 16.06.06 43450368 226250315 1 
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............ 
#COPIED... ........ ... ................. .......... ........ ........... ............ 
#DELETED.. adztolzu svd 2009-01-23 16.51.11 
# 
#ARCHIVE.. 17675 /oracle/VPP/oraarch/VPParch1_17675_603135330.dbf 2009-01-23 16.43.40 13243904 226263012 1 
#SAVED.... adztolzu svd *VXF1232718526 2009-01-23 16.51.11 ........... ............ 
#COPIED... ........ ... ................. .......... ........ ........... ............ 
#DELETED.. adztolzu svd 2009-01-23 16.51.11 
# 
VPP util_file adztolzu svd 2009-01-23 16.47.22 2009-01-23 16.54.47 1 ........... 17670 17675 0 0 
<HR>
#
<HR>
BR0280I BRARCHIVE time stamp: 2009-01-23 16.51.11 
BR0232I 6 of 6 files saved by backup utility 
BR0230I Backup utility called successfully 
BR0016I 6 offline redo log files processed, total size 220.128 MB
<HR>
Then I take tape with this data and try restore only from this tape 
all datafiles and relevant archive redologs files (17670-17675) restored without errors 
but in the end ERROR occurred
<HR>
 
ERROR at line 1: 
ORA-01195: online backup of file 1 needs more recovery to be consistent 
ORA-01110: data file 1: '/oracle/VPP/sapdata1/system_1/system.data1'
ORA-00279: change 226268039 generated at 01/23/2009 16:43:40 needed for thread 
1 
ORA-00289: suggestion : /oracle/VPP/oraarch/VPParch1_17676_603135330.dbf 
ORA-00280: change 226268039 for thread 1 is in sequence #17676
<HR>
 
My online backup ended, before swith to redolog 17676 
Why I need this file? I think files (17670-17675) should be enough?
Besides, the cange 226268039 generated exactly at moment Switching to next online redo. 
Can I try open database regardless of this error?
 
Thank you for your prompt response 
Andrey Timofeev
Edited by: Andrey Timofeev on Jul 21, 2009 4:53 PM
Edited by: Andrey Timofeev on Jul 21, 2009 4:54 PM

Size of an online redolog file member

How to reduce the size of an online redolog file member

You can add a new logfile, then switch logfile, then drop the old one.
You cannot have different members sizes in the same group.
Regards
Laurent Schneider
OCM-DBA

How to get endtime of a redolog file

How to get endtime of a redolog file..
i get start time from the following statement..but the high time shows as
01-JAN-1988 00:00:00
select TO_CHAR(LOW_TIME,'DD-MON-YYYY HH24:MI:SS'),TO_CHAR(HIGH_TIME,'DD-MON-YYYY HH24:MI:SS') from v$logmnr_logs;
where do i get the correct end time

i need the high time of the current redo log..using the folowing query i get
select min(to_char(first_time, 'DD-MON-YY HH24:MI')),
max(to_char(first_time, 'DD-MON-YY HH24:MI')),MEMBERS from v$log
group by members;
MIN(TO_CHAR(FIR MAX(TO_CHAR(FIR MEMBERS
28-NOV-07 09:33 28-NOV-07 12:19 1
it returns the max and min low time among all redo logfiles
what I need is the high time of current log file.
using the next query i get
select min(TO_CHAR(LOW_TIME,'DD-MON-YYYY HH24:MI:SS')),max(TO_CHAR(LOW_TIME,'DD-MON-YYYY HH24:MI:SS')) from v$logmnr_logs;
28-NOV-2007 12:19:09 28-NOV-2007 12:19:09
since i add only current log file to log mining session, v$logmnr_logs would only have information about that file(one row only). so will get same time here for min and max. What i need here is high_time of the current redo log file.
Any idea?

Question on recovery of redolog file

hii,
how to open database,
when block corruption error in redolog file.
there are two archive redo log groups.
and database in non archive mode.
thank's in advance

I think this is a very difficult situation. You cannot proceed in opening your database as your redo log is corrupt (current I guess :( ). Your database is no noarchivelog mode, which makes it more diffidcult.
When you say you have two archive log groups, do you mean redo log groups?
Are those groups multiplexed?
In this case you can still recover from this error by dropping the corrupt redo log file and using the valid surviving redo log member.
If you have only two redo log groups, not multiplexed members an no archivelog mode, then I suggest you to dump the contents of your redo log file and detect up to which point you still can find a valid SCN, so can execute an incomplete recover until that scn.
Procedure to dump the contents of your redo log file is:
alter system dump logfile '/xxxx';
This will create a text file with the contents from your redo log file, once you have it you can check up to whic valid SCN you can get. Next perform an incompete recover until that found SCN.
~ Madrid.

How can i drop the redolog File

hello ,
I was installing oracle 10g on windows using DBCA. The problem is that i made three group of redolog size 1M. When DBCA was creating the database i got an error msg that "Size of redo log is less "But i ignored that error.
Ater that the database was created and i got a warning open the datbase using resetlogs.
The datbase is created but in Redolog file was not there(Physical files).
now i mounted the database. At that time the 3rd Redolog grp was active so i dropped the 1st n 2nd grp and created with 8MB.
but to drop 3rd grp i want swicth the logfile but without opening the datbase it is not possible.
and with the current size of 3rd redolog grp(Becoz of size) it is not possible to open the database.
So plz tell me how can i
1) How can i switch the logfile grp
2) drop the 3rd redolog group
thanx in advance
Ashish

Well, you can recreate ctlfile :
SQL> startup mount
ORACLE instance started.
Total System Global Area 135339876 bytes
Fixed Size                   454500 bytes
Variable Size             109051904 bytes
Database Buffers           25165824 bytes
Redo Buffers                 667648 bytes
Database mounted.
SQL> alter database backup controlfile to trace;
Database altered.
SQL> shutdown immediate
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.In the file generated, take the step #2, and change the size of redolog files. And run it :
SQL> CREATE CONTROLFILE REUSE DATABASE "DEMO9I" RESETLOGS NOARCHIVELOG
2 -- SET STANDBY TO MAXIMIZE PERFORMANCE
3      MAXLOGFILES 50
4      MAXLOGMEMBERS 5
5      MAXDATAFILES 100
6      MAXINSTANCES 1
7      MAXLOGHISTORY 226
8 LOGFILE
9    GROUP 1 'E:\ORACLE\ORADATA\DEMO9I\REDO01.LOG' SIZE 110M, --I changed it, it was 100M
10    GROUP 2 'E:\ORACLE\ORADATA\DEMO9I\REDO02.LOG' SIZE 110M,--I changed it, it was 100M
11    GROUP 3 'E:\ORACLE\ORADATA\DEMO9I\REDO03.LOG' SIZE 110M--I changed it, it was 100M
12 -- STANDBY LOGFILE
13 DATAFILE
14    'E:\ORACLE\ORADATA\DEMO9I\SYSTEM01.DBF',
15    'E:\ORACLE\ORADATA\DEMO9I\UNDOTBS01.DBF',
16    'E:\ORACLE\ORADATA\DEMO9I\CWMLITE01.DBF',
17    'E:\ORACLE\ORADATA\DEMO9I\DRSYS01.DBF',
18    'E:\ORACLE\ORADATA\DEMO9I\EXAMPLE01.DBF',
19    'E:\ORACLE\ORADATA\DEMO9I\INDX01.DBF',
20    'E:\ORACLE\ORADATA\DEMO9I\ODM01.DBF',
21    'E:\ORACLE\ORADATA\DEMO9I\TOOLS01.DBF',
22    'E:\ORACLE\ORADATA\DEMO9I\USERS01.DBF',
23    'E:\ORACLE\ORADATA\DEMO9I\XDB01.DBF',
24    'E:\ORACLE\ORADATA\DEMO9I\TBS_TST_01.DBF'
25 CHARACTER SET AL32UTF8
26 ;
Control file created.
SQL> ALTER DATABASE OPEN RESETLOGS;
Database altered.
SQL> ALTER TABLESPACE TEMP ADD TEMPFILE 'E:\ORACLE\ORADATA\DEMO9I\TEMP01.DBF' REUSE;
Tablespace altered.
SQL> HTH,
Nicolas.

Resize online redolog files, make RMAN obsolute backups as usable

Dear Guru's,
I have following doubts, please clarify me on the same. thanks in advance
1. why can not we resize online redolog files instead of re-creating the same with large size and remove the older onces.
2. How can we make RMAN obsolute backups as usable ?
Thanks.

vasuoracledba wrote:
Hi Aman,
Thanks for replay...
Regarding RMAN, plz look into below issue.
I configured RMAN backup recovery window of 15 days. after 15 days the backupsets which were older then 15 days are obsolute. now i have to restore the backup of 15 days older(obsolute backupsets) backupsets to the database. but when i do restore it defaulty takes latest backupsets other then obsolute onces.
how do i restore older(obsolute backupsets) backupsets to the database?
If i used the CHANGE cmd, how to do that.
RMAN> change backupset tag weekly_backup_20052013_02:45 _______________
do i make latest backupsets unavaliable to restore the older once....
RMAN> change backupset tag weekly_backup_20062013_02:00;
Thanks in advance...........
Obsolete backups are always usable, until you delete them with DELETE OBSOLETE.
If you want to restore from a backup other than the latest, use an until clause:
run {set until time = 'sysdate - 15';
restore database;}

Offline redolog file are delete in Oracle 11

Hi
We recently upgrade our Oracle release from Oracle 10.2.0.2 to Oracle Database 11g Release 2.
I was running the process to table compression with BRSPACE 7.20 using the command:
brspace -u / -p /oracle/LUK/112_64/dbs/reorgEXCL.tab -f tbreorg -a reorg -o SAPR3 -s PSAPLUK -t allsel -n PSAPLUKCOMP -c ctab u2013SCT
The process finish ok but I have a problem with Offline redolog, it are generated succesfully but it are delete after a short time, it disappear from the filesystem, I donot understand this behavior, the delete of archive log is not a deliberate configuration.
If I execute the archive log backup I allways obtain a lot of warnings with redolog file not found:
Offline redolog file '/oracle/XXX/saparch/XXXarch1_11155_666372933.dbf' not found
After compression process the Offline redologs files are being delete too.
I need to know the reason for this behavior, may be a wrong parameter in our database?
It is a normal situation with Oracle 11?
What happen with the Database and backup/restore strategy without offline redologs?
Next week I need to upgrade the oracle release in our productive system, in this system the archive and database backup are very important and I need to solve this issue or fix it.
Please help me to solve this problem.
Thanks in advanced,
OMM

Hi,
Offline redolog file '/oracle/XXX/saparch/XXXarch1_11155_666372933.dbf' not found
Such messages are only seen if some one has deleted/moved the complained offline redo log files form the Archive Log destination.
Please ensure that if someone has moved/deleted the offline redo log files or not ? It may be done to accommodate space in Archive log destination, as the reorganization/compression activities will generate more archive logs.
Also try to perform the same activity again and monitor the archive log destination directory. As i think, such "Offline redo log file deletion after Table Compressions activity done by BRSAPCE " behavior is not possible at all.
What happen with the Database and backup/restore strategy without offline redologs?
Offline Redo log files must require in Database media Recovery process. Without it only Point-in-time recovery is possible.
Regards,
Bhavik G. Shroff

DB, Control, Redolog files location while Creating DB with DBCA

I am creating DB with DBCA, and want to control locations of these files like
/u04/oradata/dbname/filename,
so can i put this in front of all in the section of file direcotry ?
2nd how i can check redolog file destination of existing DB with query/view?
Controlfiles
{ORACLE_BASE}\oradata\{DB_NAME}\
{ORACLE_BASE}\oradata\{DB_NAME}\
{ORACLE_BASE}\oradata\{DB_NAME}\
DB files
Filename File Directory
CWMLITE01.DBF {ORACLE_BASE}\oradata\{DB_NAME}\
SYSTEM01.DBF {ORACLE_BASE}\oradata\{DB_NAME}\
UNDOTBS01.DBF {ORACLE_BASE}\oradata\{DB_NAME}\
Redo Log Groups
REDO01.LOG {ORACLE_BASE}\oradata\{DB_NAME}\
REDO02.LOG {ORACLE_BASE}\oradata\{DB_NAME}\
REDO03.LOG {ORACLE_BASE}\oradata\{DB_NAME}\

to access newly created db through sqlplus , i have
to update, /etc/oratab?Not necessarily. If you want to use e.g. scripts that reference oratab or if you want dbca to "see" the db, then yes. It depends.
and then export oraclehome,
base, path, sid and access it or do have to adjustYes you need to set up your environment based on the instance and its Oracle Home. See the Install Guide (post install) and/or Administrator's Guide.
my listener will automatically register this new db?No, well, not really. The instance (pmon) will automatically register with the listener.

How can I add Redolog files in standby

Hi,
I am about to create standby database in standard edition of Oracle9i through RMAN I can't find any entry regarding Redologs in DUPLICATE command can I add redolog after creating standby database or standby database doesn't need redologs, plz let me clear.
Thanks in advance.
Khawar

Hi,
you can add redolog files for variety of purposes,and this is not mendetory for creating stdby databases.
anyway you can use these commands which are give below.
ALTER DATABASE ADD STANDBY LOGFILE
('/oracle/dbs/log1c.rdo','/oracle/dbs/log2c.rdo') SIZE 500K;
You can also specify a number that identifies the group using the GROUP option:
ALTER DATABASE ADD STANDBY LOGFILE GROUP 10
('/oracle/dbs/log1c.rdo','/oracle/dbs/log2c.rdo') SIZE 500K;
thnks.

REDOLOG Files Miising

Similar Messages

Maybe you are looking for