Going from NOARCHIVELOG to ARCHIVELOG mode

I am running an Oracle 10g Release 2 10.2.0.2 database on AIX.
Can any body tell me the exacts steps for going from noarchivelog mode to
archivelog mode.
Thanks and Regards,
Asim Naveed.

You must
1 - shutdown db
2 - mount db
3 - ALTER DATABASE ARCHIVELOG
4 - open dbDo not forget to backup the database.

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Change database from NoArchivelog to Archivelog

Hi,
I currently using oracle9i(9.2.0.2) under w2k. How can I change database from NoArchivelog node to Archivelog node?
Thanks
Ken

If your using an spfile, then you can do the suggested using ALTER SYSTEM with the SCOPE=spfile; condition otherwise when you restart your instance the changes won't be recognized (if you're using an init.ora file then change it in the init.ora, but don't try to edit the spfile with a text editor, you'll corrupt it)
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Hi Team,
I come across a strange problem in the ORACLE 10G Server.
I am converting database mode from NoArchivelog to Archivelog mode through RMAN in 10G.
Now When I execute these following commands through RMAN prompt it works properly as shown below?
C:\>rman
Recovery Manager: Release 10.2.0.1.0 - Production on Thu Nov 30 18:01:08 2006
Copyright (c) 1982, 2005, Oracle. All rights reserved.
RMAN> connect target /
connected to target database: RAVI (DBID=4025722893, not open)
RMAN> shutdown immediate;
using target database control file instead of recovery catalog
database dismounted
Oracle instance shut down
RMAN> STARTUP MOUNT;
connected to target database (not started)
Oracle instance started
database mounted
Total System Global Area 167772160 bytes
Fixed Size 1247876 bytes
Variable Size 79693180 bytes
Database Buffers 79691776 bytes
Redo Buffers 7139328 bytes
RMAN> SQL 'ALTER DATABASE ARCHIVELOG';
sql statement: ALTER DATABASE ARCHIVELOG
RMAN> ALTER DATABASE OPEN;
database opened
RMAN>
But this same script when i writes in the backup.ora file & pass to Rman prompt it fails,
File backup.ora contains...
run
SHUTDOWN IMMEDIATE;
STARTUP MOUNT;
SQL 'ALTER DATABASE ARCHIVELOG';
ALTER DATABASE OPEN;
passed to RMAN as follows...
C:\OracleCode\BACKUP>"C:\oracle\product\10.2.0\db_1\bin\RMAN.EXE" target /"connect target SYSTEM/sreedhar@RAVI" log="C:\ORACLE~2\LOGS\backup_log.log" append cmdfile="C:\ORACLE~2\BACKUP\backup.ora"
RMAN> 2> 3> 4> 5> 6> 7> 8>
then it fails giving the following errors...
using target database control file instead of recovery catalog
database closed
database dismounted
Oracle instance shut down
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of startup command at 11/30/2006 18:05:59
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
Recovery Manager complete.
The same thing is working in the Oracle 9i but not in the Oracle 10G.
Can Anybody plz help me in this?
Regards,
S.Tiwari
.

export ORACLE_SID=<SID>
rman target /cmdfile="C:\ORACLE~2\BACKUP\backup.ora"
it will connect to the default SID, there's no such thing as a default SID, what do you mean?
But what if there are more that one SID available & I
want to connect to SID other than the default SID.just specify the desired SID prior starting rman.
more over the same string is working with 9i but not
with 10G.maybe due to a bug?
to summarize, you have two options it you would like to start up the instance:
either you specify the SID prior starting rman and use os authentication
or
you register the instance statically and use oracle authentication.
regards,
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Going to noarchivelog mode in 10gR2

Hi,
my database is in 10gR2 on a win XP PC in archive log mode. How can I go to non archivelog mode ?
1-Should I change Archive_log_start to false in E:\oracle\product\10.2.0\admin\bd1\pfile\init.ora ?
then
2-Shutdown immediate, startup mount, alter database noarchivelog, shutdown immediate, startup
Or may be another faster way in 10gR2 ?
Many thanks.

Archive_log_start to false Hey, this is a depricated parameter in version 10g.
Simply, mount the database and switch to noarchivelog mode and open the database.
More importantly, dont forget to have a backup.
Jaffar

Comming out from archivelog mode

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I have a database which is in archive log mode. How can I come back to non archive log mode ?
Many thanks.

Setting log_archive_start = true in init.ora file enables automatic archiving of redo log files.
You will disable automatic archiving if you say.
SQL> ALTER SYSTEM ARCHIVE LOG STOP;
Now you have to archive the redo log manually. If the database is in archivelog mode and automatic archiving is disabled and if log switch happens then LGWR cannot overwrite the redo log file which is not yet archived. I experimented on my test machine and database operation hang up as follows.
Connected to:
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With the Partitioning, OLAP and Oracle Data Mining options
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System altered.
SQL> /
hanged here.
If you say the following then database will not be in archivelog mode. LGWR will overwrite the redolog files and will not wait for archiving as the database is in noarchivelog mode.
SQL> startup mount
SQL> alter database noarchivelog;
Now it depends upon your requirement. Do you want to stop the current archivelog mode temporarily or permanent ?
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Archivelog mode

I'd like to make sure of the following:
when the database works in noarchivelog mode it does not matter what's the value of log_archive_start parameter whether it is true or false .I mean if log_archive_start in this case is set to true it won't archive the full redolog files because the database is in noarchive mode,Am i right?
Thanks in advance.

The parameter archive_log_start controls whether or not the Archiver (arcN) process is started at database startup or not. If you are not in archivelog mode, then it is immaterial. If you are in archive log mode, then if archive_log_start is false, you will have to manually archive redo logs as the fill, otherwise the system will stop after it fills the last archive log.
Unless you are running a read only database, and know that it will never ever be modified (I have two such databases holding data from legacy systems), then you might as well set archive_log_start to TRUE. One day, you are going to want to put that test database into archivelog mode for some reason or another, and users screan really loudly when the system "hangs" because all the redo logs are filled.
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Database in Archivelog mode

Hi
All,
I have oracle 9.2.0.6 at my workplace.right now my database running in ARCHIVELOG MODE. I want to set it to NOARCHIVELOG MODE.
can I do on the fly? in other way, Do I need to shutdown and restart database?
Any help will be appreciated.
Thanks,
Vishal

Hi,
Issue the following commands to put a database into NOARCHVELOG mode:
1) Take Back up of Present SPfile by creating pfile
create pfile from present spfile.
2) Shutdown the database by SUTDOWN IMMEDIATE.
3) Take Cold backup of the database.
4) Change the parameter in the pfile.
log_archive_start = FALSE
#log_archive_dest_1 = 'LOCATION='Your location'
log_archive_dest_state_1 = DISABLE
#log_archive_format = %d_%t_%s.arc
5) And make a spfile from the modified pfile in default location .
6) Start the database with spfile.
SQL> CONNECT sys AS SYSDBA
SQL> STARTUP MOUNT ;
SQL> ALTER DATABASE ARCHIVELOG;
SQL> ARCHIVE LOG START;
SQL> ALTER DATABASE OPEN;
NOTE 1: Remember to take a baseline database backup right after disabling archivelog mode. Without it one would not be able to recover.
Regards
Jafar

How to use OEM grid control to find any database not in archivelog mode?

Hello,
currently we have 130 databases, say, if I want to pick out any database currently NOT in archivelog mode, is there a quick way to find out ?
by using OEM grid control
or
some trick similar,
but really don't need to check each database manually.
thank you very much!

This query works in 12c - please run as SYSMAN.
It is based on undocumented assumptions though +( AND key_value = 'NOARCHIVELOG')+.
SELECT *
FROM SYSMAN.MGMT$GROUP_DERIVED_MEMBERSHIPS O ,
    SYSMAN.MGMT$TARGET T ,
    sysman.MGMT$AVAILABILITY_CURRENT st
WHERE
o.member_target_type     IN ('oracle_database', 'rac_database')
AND ( t.target_type           ='rac_database'
OR (t.target_type             ='oracle_database'
AND t.type_qualifier3        != 'RACINST'))
AND o. member_target_guid     = t.target_guid
AND t.target_guid             = st.target_guid
AND st.availability_status    = 'Target Up'
AND ( EXISTS
    (SELECT *
    FROM sysman.mgmt$metric_current i
    WHERE I.TARGET_GUID = O.MEMBER_TARGET_GUID
    AND metric_name     = 'archFull'
    AND Metric_Column   = 'archTotal'
    AND metric_label    = 'Archive Area'
    AND column_label    = 'Total Archive Area (KB)'
    AND key_value       = 'NOARCHIVELOG'
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OLAP in 10G with ARCHIVELOG mode

Can we place 10G database in ARCHIVELOG mode with OLAP? Currently we are at 9204 and our database is running in NOARCHIVELOG mode. I am new here and I was told that there is some issue with the OLAP that prevents placing the database in ARCHIVELOG mode. Is it true? If it is true then has it been fixed in 10G as we want to take advantage of FLASHBACK query option of 10G and that will require the database to be in ARCHIVE mode?
Thanks

it's a slight misunderstanding.
You can recover the cold backup and switch it on. -therefore you will have a database from the point of the cold backup.
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Archivelog Mode / init.ora file

Hi,
Maybe someone can help me out. I am presently trying to set up a dev server that has 3 or 4 databases on it. The first database is installed by the Oracle installation kit. The 2nd one that I am now trying to configure is giving me the following error: Ora-01126: database must be mounted EXCLUSIVE and not open for this operation. I am also setting it up for archiving.
When I do a SELECT * from V$database; the answer comes back that it is in noarchivelog mode. I even edited the init.ora file in both the pfile folder and the ora81/database folder and yet the answer is still the same. I even rebooted it with the same results. I understand that the database is in exclusive mode by default. Does this have anything to do with Parrelizm (spelling). I tried altering the database to archivelog mode but with no results.
Any ideas? Im at a loss.
Thanks for your time.
Al

Hi Al,
try to startup the db with startup mount or startup read only and try
the alter command again.
Normally it should work then!
Tobias

Alter database into Archivelog mode.

HI Team,
I am using ORACLE 9i.
I want to convert database into archivelog mode from noarchivelog mode.
Using the following SQL Commands I can able to convert my database into the Archivelog.
SQL> connect sys as sysdba
Enter password: *****************
Connected.
SQL> alter database archivelog;
alter database archivelog
ERROR at line 1:
ORA-01126: database must be mounted EXCLUSIVE and not open for this operation
SQL> startup mount;
ORA-01081: cannot start already-running ORACLE - shut it down first
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount;
ORACLE instance started.
Total System Global Area 252779340 bytes
Fixed Size 453452 bytes
Variable Size 125829120 bytes
Database Buffers 125829120 bytes
Redo Buffers 667648 bytes
Database mounted.
SQL> alter database archivelog;
Database altered.
My problem is that I had to shutdown the database before converting it in to the archivelog mode...
Is there any way that without shuting down the database i can switch to archivelog mode.
Please comments...
Shatrughan

if we shutdown immediate one's database..do
it's listener terminated too???The database registration with the listener yes, the listener itself no. That is, if you execute a command like "lsnrctl stat" you won't see the database anymore, but the listener is still active. Example :
[ora102 ~ db102]$ lsnrctl stat
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 05-MAY-2007 18:57:51
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                05-MAY-2007 18:27:34
Uptime                    0 days 0 hr. 30 min. 16 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/ora102/OraHome1/network/admin/listener.ora
Listener Log File         /home/ora102/OraHome1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
Service "db102" has 1 instance(s).
Instance "db102", status READY, has 2 handler(s) for this service...
The command completed successfully
[ora102 ~ db102]$ sqlplus / as sysdba
SQL*Plus: Release 10.2.0.1.0 - Production on Sat May 5 18:58:03 2007
Copyright (c) 1982, 2005, Oracle. All rights reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
SYS@db102 SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SYS@db102 SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production
With the Partitioning, OLAP and Data Mining options
[ora102 ~ db102]$ lsnrctl stat
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 05-MAY-2007 18:58:33
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=localhost)(PORT=1521)))
STATUS of the LISTENER
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                05-MAY-2007 18:27:34
Uptime                    0 days 0 hr. 30 min. 58 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /home/ora102/OraHome1/network/admin/listener.ora
Listener Log File         /home/ora102/OraHome1/network/log/listener.log
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC0)))
Services Summary...
Service "PLSExtProc" has 1 instance(s).
Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
[ora102 ~ db102]$

Going from NOARCHIVELOG to ARCHIVELOG mode

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