Creation of Logical Standby DB

Dear all,
I just want to know,
I have a primary database and a physical standby database. I created Data Guard Broker Configuration. When i try to change the protection mode DGMGRL through an error like no other standby database is available.
What this exactly means, if i am not wrong i need to configure another standby wheather physical or logical before changing the protection mode of the standby database i need to have one more standby db apart from primary and physical standby DB.
Correct me if you feel i am wrong.

Are you referring to the thread ORA-16724: cannot resolve gap for one or more standby databases ?
If so please continue in old thread, as it has lot of information already instaead of starting new discussion.
If you think it is completely different then share the error what you received and also information from the broker logs.

Similar Messages

Creation of Logical Standby Database Using RMAN ACTIVE DATABASE COMMAND

Hi All,
I am in confusion how to create logical standby database from primary database using rman active database command.
What i did:-
Create primary database on machine 1 on RHEL 5 with Oracle 11gR2
Create standby database on machine 2 on RHEL 5 With Oracle 11gR2 from primary using RMAN active database command
Trying to create logical standby database on machine 3 on RHEL 5 with Oracle 11gR2 using RMAN active database command from primary.
The point which confuse me is to start the logical standby in nomount mode on machine 3 with which pfile like i create the pfile for standby database do i need to create the pfile for logical standby db.
I done the creation of logical standby database by converting physical standby to logical standby database
I am following the below mentioned doc for the same:
Creating a physical and a logical standby database in a DR environment | Chen Guang&#039;s Blog
Kindly guide me how to work over the same or please provide me the steps of the same.
Thanks in advance.

Thanks for your reply
I already started the logical standby database with pfile in nomount mode. And successfully completed the duplication of database. by mentioning the DB_FILE_NAME_CONVERT and LOG_FILE_NAME_CONVERT parameter.
But i am not able to receive the logs on the above mentioned blog i run the sql command to check the logs but getting "no rows selected"
My primary database pfile is:
pc01prmy.__db_cache_size=83886080
pc01prmy.__java_pool_size=12582912
pc01prmy.__large_pool_size=4194304
pc01prmy.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
pc01prmy.__pga_aggregate_target=79691776
pc01prmy.__sga_target=239075328
pc01prmy.__shared_io_pool_size=0
pc01prmy.__shared_pool_size=134217728
pc01prmy.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/pc01prmy/adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='/u01/app/oracle/oradata/PC01PRMY/controlfile/o1_mf_91g3mdtr_.ctl','/u01/app/oracle/flash_recovery_area/PC01PRMY/controlfile/o1_mf_91g3mf6v_.ctl'
*.db_block_size=8192
*.db_create_file_dest='/u01/app/oracle/oradata'
*.db_domain=''
*.db_file_name_convert='/u01/app/oracle/oradata/PC01SBY/datafile','/u01/app/oracle/oradata/PC01PRMY/datafile'
*.db_name='pc01prmy'
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=pc01prmyXDB)'
*.fal_client='PC01PRMY'
*.fal_server='PC01SBY'
*.log_archive_config='DG_CONFIG=(pc01prmy,pc01sby,pc01ls)'
*.log_archive_dest_1='LOCATION=/u01/app/oracle/flash_recovery_area/PC01PRMY/ VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=pc01prmy'
*.log_archive_dest_2='SERVICE=pc01sby LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=pc01sby'
*.log_archive_dest_3='SERVICE=pc01ls LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES, PRIMARY_ROLE) DB_UNIQUE_NAME=pc01ls'
*.log_archive_dest_state_1='ENABLE'
*.log_archive_dest_state_2='DEFER'
*.log_archive_dest_state_3='DEFER'
*.log_archive_max_processes=30
*.log_file_name_convert='/u01/app/oracle/oradata/PC01SBY/onlinelog','/u01/app/oracle/oradata/PC01PRMY/onlinelog'
*.open_cursors=300
*.pga_aggregate_target=78643200
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=236978176
*.undo_tablespace='UNDOTBS1'
My logical standby pfile is:-
pc01ls.__db_cache_size=92274688
pc01ls.__java_pool_size=12582912
pc01ls.__large_pool_size=4194304
pc01ls.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
pc01ls.__pga_aggregate_target=79691776
pc01ls.__sga_target=239075328
pc01ls.__shared_io_pool_size=0
pc01ls.__shared_pool_size=125829120
pc01ls.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/pc01ls/adump'
*.audit_trail='db'
*.compatible='11.1.0.0.0'
*.control_files='/u01/app/oracle/oradata/PC01LS/controlfile/o1_mf_91g3mdtr_.ctl','/u01/app/oracle/flash_recovery_area/PC01LS/controlfile/o1_mf_91g3mf6v_.ctl'
*.db_block_size=8192
*.db_create_file_dest='/u01/app/oracle/oradata'
*.db_domain=''
*.db_file_name_convert='/u01/app/oracle/oradata/PC01SBY/datafile','/u01/app/oracle/oradata/PC01PRMY/datafile'
*.db_name='pc01prmy'
*.db_unique_name='pc01ls'
*.db_recovery_file_dest='/u01/app/oracle/flash_recovery_area'
*.db_recovery_file_dest_size=2147483648
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=pc01prmyXDB)'
*.log_archive_config='DG_CONFIG=(pc01prmy,pc01sby,pc01ls)'
*.log_archive_dest_1='LOCATION=/u01/app/oracle/flash_recovery_area/PC01PRMY/ VALID_FOR=(ONLINE_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=pc01prmy'
*.log_archive_dest_2='LOCATION=/u01/app/oracle/flash_recovery_area/PC01LS/ VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=pc01ls'
*.log_archive_dest_3='SERVICE=pc01ls LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES, PRIMARY_ROLE) DB_UNIQUE_NAME=pc01ls'
*.log_archive_dest_state_1='ENABLE'
*.log_archive_dest_state_2='ENABLE'
*.log_archive_max_processes=30
*.log_file_name_convert='/u01/app/oracle/oradata/PC01SBY/onlinelog','/u01/app/oracle/oradata/PC01PRMY/onlinelog'
*.open_cursors=300
*.pga_aggregate_target=78643200
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.sga_target=236978176
*.undo_tablespace='UNDOTBS1'
Kindly advice over the same

Creation of logical standby by shipping the redologs from physical standby

Hi all,
I have to create a logical standby database using redo shipping from my PHYSICAL STANDBY while it is in mounted state .Is it really possible to do it??
Please send me any docs regarding this to my mail id ([email protected])
Thanx in advance

It is possible to do what you ask by using cascaded destinations. See the Data Guard Manual (online at OTN) http://download-uk.oracle.com/docs/cd/B19306_01/server.102/b14239/cascade_appx.htm#i636046
for the information. This relies on the standby creating and re-transmitting redo log data.
Hope this helps

Creation of logical standby in 9i from physical standby

Hi all,
I want to create logical standby from physical standby in 9i. can anyone send a doc for this

As per the Oracle documents "You create a logical standby database by first creating a physical standby database and then transitioning it to a logical standby database"
Please take a look at the below URL.
http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14239/create_ls.htm
Regards,
Sabdar Syed.

Creating logical standby from non primary backup

We want to test creation for logical standby in our test enviroment.
Here is the plan we are
1. Backup Prod.
2. Restore Test Primary (T1) and Restore test standby (T2) from Prod backup.
3. Setup standby between T1 and T2.
Plan is to save the time for backup and restore process. I have not doe it before. Will this process work or T2 restore needs to be done from backup of T1 as that would be primary.
Manuj

969257 wrote:
Thanks Tobi.
I will try this. The test system is very large about 16TB and the backup/restore process takes days. I just wanted to be sure if the same backup would work for creating the primary and standby at the same time.
So in this case, I will just have to restore from backup and move forward with archivelogs. Will I have to use the control-file from Prod or from T1.
Use the control file from T1(test primary)
I would like to use the backup COPY.
General steps to follow:
1. restore T1 as the (test)primary DB.
2. recover/apply the T1 using the redo log.
3. restore T2 but do not apply redo to prevent it from divergence from T1. i mean, let T2 scn be behind T1 scn.
4. following the general steps as it apply to you in preparing and creating primary and standby DB
http://docs.oracle.com/cd/B19306_01/server.102/b14239/create_ps.htm
5. make sure T2 can receive and apply redo data from T1
6.covert T2 to logical standby DB
http://docs.oracle.com/cd/B19306_01/server.102/b14239/create_ls.htm
HTH
Tobi

Logical Standby Creation Problems "Create STatus Unknown"

We are using Grid Control 10.2.0.3 on Oracle 10.2..0.3 databases, Windows 2003 sp2 machines.
We have a primary and fsfo physical standby working properly. We went to create a logical standby on a separate server and had problems. it turned out that the listener on the server was not discovered on the target. we fixed that problem and finished the creation of the logical standby and it seems to be functioning properly now.
However, the status on the data guard page for the logical standby shows Create Status Unknown and we are unable to proceed on to create an additional standby database for other purposes. We have tried removing the logical standby target and re-discovering it but status still shows Create Status Unknown.
Is there any way to clear this status without having to drop the logical standby and completely recreate it.

The status on the agent shows it uploading successfully.
We resolved the issue by removing the logical standby from the configuration and selecting to retain the log apply. We then re-added the standby selecting to manage an existing standby database and the status went to normal.

Steps to rollback when Logical Standby Database creation fails

Hi,
In case while creating a logical standby database it fails. What steps should be done on primary to rollback the earlier steps. Because while creating logical standby we do certain tasks on primary e.g.
1) create supplemental logging.
2) update init file.
Regards,
Tushar

Hi,
Thanks for the mail. Should I drop the supplemental logging using
"Alter database DROP Supplemental Log data;".
or if we need to disable, how can we do so?
Rest is ok. Anyways I would not be using force logging.
Droping of additional tablespace created to keep logminer tables on primary.
Removing of log_archive_dest_2 information from primary init.
I think the above should do.
Regards,
Tushar

ORA-01403 - Logical Standby Apply ends on delete/update statement

- This thread is relocated to this forum; advice from Daniel Roy -
After implementing 2 logical standby databases and running pretty smooth for a while 'strange' errors occur which puzzle me. Sometimes I skip a transaction or exclude a schema from replication and hold my breath for what next roars its ugly head.
Despite fulfilling all logical standby prerequisites and maintaining primary keys on tables I now run into ORA-01403 errors. The updated table only contains 1 row and has a foreign key to another small table.
I could instantiate these tables, but I want to understand why these errors occur and prevent them form happing or learn how to resolve them best.
Anyone around who dealt with these matters and won?
I'm running this implementation with Oracle 9.2.0.7 on Tru64 51.b
I'm able to create the logical standby databases manually and with aid of the Data Guard Creation Wizard (EM10g 10.1).
Can anyone also help me out with refining the faulty transaction from e.g. V$LOGMNR_CONTENTS? (Without disrupting the data guard setup).
I've already retrieved redo info from archivelogs, but there must be an easy way.
Regards,
Erik

Any way for you to turn tracing on for the DB where you see this ORA-01403 error? We could then probably find out exactly what goes wrong. It's very hard for us to know exactly what might be wrong, since we don't know your exact setup (except for this table). Let me know if that's not possible, and I could construct a logical DB setup to test (even tho it would be on Windows, I don't have Tru64).
Daniel

How to exclude tablespace in logical standby database

Dear all,
In which way does the creation procedure of a logical standby database differ than the standard ORA9.2 procedure (http://www.oracle.com/pls/db92/db92.to_pdf?pathname=server.920%2Fa96653.pdf&remark=docindex) if I want to exclude a tablespace in my standby database?
Excluding tablespace in physical standby database is impossible.
Thanks in advance.

The goal of a stand by database is to become a clone fed online with transactions coming from the active database. If the cloned database in a physical dataguard configuration diverges from the active database it is useless, as transaction control takes place at a lower level (physical addresses are involved).
~ Madrid

Unable to start logical standby

Hi All,
I'm having some problems trying to start my logical standby. I managed to successfullly create a physical standby and ensured that it was collecting and applying archive logs. Running Oracle 10g on 11g Grid ASM
I then converted it to a logical and i'm getting this problem : -
SYS@Logical > ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;
ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE
ERROR at line 1:
ORA-00254: error in archive control string ''
ORA-06512: at "SYS.DBMS_INTERNAL_LOGSTDBY", line 615
ORA-06512: at line 1
The following is my parameters on the logical db
log_archive_dest_1 string LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=Primary
log_archive_dest_3 string LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=Logical
*log_archive_dest_2 points to another physical that is working ok.
standby_archive_dest string LOCATION=USE_DB_RECOVERY_FILE_DEST
db_recovery_file_dest string +FLASH_RECOVERY_AREA
This is the only line relevant in my alert log
ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE
ORA-254 signalled during: ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE...
These are the parameters on my primary db
log_archive_dest_1 string LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=Primary
log_archive_dest_3 string SERVICE=logical LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=logical
log_archive_dest_4 string LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(STANDBY_LOGFILES,STANDBY_ROLE) DB_UNIQUE_NAME=primary
SYS@Primary > select SUPPLEMENTAL_LOG_DATA_PK, SUPPLEMENTAL_LOG_DATA_UI,FORCE_LOGGING from v$database;
SUP SUP FOR
YES YES YES
Can anyone tell me what i'm doing wrong? I 've looked up google and metalink and it keeps coming down to me putting in a archive parameter wrong. I don't htink i'ts on the primary, or it would have errored with the creation of the physical database.
Any help woudl be appreciated.
Thanks.

Hey Damorgan,
I should have made it clear, sorry. That isn't the syntax I used to create the parameters, that is a screen grab of the parameter with me editing it to make it easier to read. So apologies for the confusion.
To test the physical standby, I switched an archive log on the primary and then queried v$archived_log to make sure the logs were applied and compared the values between both the primary and physical. I did several log switches and it i could see it replicate on the physical.
Do you have any other suggestions on how to check for a physical standby?

Create table on Logical Standby Database

Dear DBAs,
here is my situation;
1. My primary database (where the tables' owner is "ICC" having a DBA) is used for insert/update transactions.
2. The logical stdby DB (dataguard structure with MAX availability) is used to generate reports, after updating some tables owned by the same user "ICC". note that these tables are excluded from the replication.
3. The developers might need to create this kind of tables to generate another kind of reports.
The issue is that when the standby apply is enabled or disabled, the user ICC is not able to create a new table, it gives ORA-01031: insufficient privileges. note that it's not practical to ask the DBA to disable the "APPLY" at any table creation.
Do you have an idea about how to resolve.
My database is 10gR2 path.10.2.0.4.0 on Windows 2003
Thank you in advance

If you stop applying log on the logical standby you can easily create a table over there. See oracle docs. The following list shows >how to re-create a table and restart SQL Apply on that table:
>
Stop SQL Apply:
SQL> ALTER DATABASE STOP LOGICAL STANDBY APPLY;
Ensure no operations are being skipped for the table in question by querying the DBA_LOGSTDBY_SKIP view:
SQL> SELECT * FROM DBA_LOGSTDBY_SKIP;
ERROR STATEMENT_OPT OWNER NAME PROC
N SCHEMA_DDL HR EMPLOYEES
N DML HR EMPLOYEES
N SCHEMA_DDL OE TEST_ORDER
N DML OE TEST_ORDER
Because you already have skip rules associated with the table that you want to re-create on the logical standby >database, you must first delete those rules. You can accomplish that by calling the DBMS_LOGSTDBY.UNSKIP >procedure. For example:
SQL> EXECUTE DBMS_LOGSTDBY.UNSKIP(stmt => 'DML', -
schema_name => 'HR', - object_name => 'EMPLOYEES');SQL> EXECUTE DBMS_LOGSTDBY.UNSKIP(stmt >=> 'SCHEMA_DDL', -
schema_name => 'HR', - object_name => 'EMPLOYEES');
Re-create the table HR.EMPLOYEES with all its data in the logical standby database by using the >DBMS_LOGSTDBY.INSTANTIATE_TABLE procedure. For example:
SQL> EXECUTE DBMS_LOGSTDBY.INSTANTIATE_TABLE(shema_name => 'HR', -
object-_name => 'EMPLOYEES', -
dblink => 'BOSTON');
Start SQL Apply:
SQL> ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;Regards.

Online Redolog Archiving on Logical Standby Databases!!

Hi,
Can I safely stop archiving on logical standby database? It has been inherited from primary database at the time of creation, but I don't see any reason why to keep it enabled while it's consuming unnecessary disk space on our server!!
Any body can give a valid reason to keep it enabled??
Thanks

hi
u dont need archiving on standby database as standby database reads archive files that come from primary database.its simply wastage of resource.stand by database was created from primary by taking a full backup.and to apply the archive files in case of failure u need atleast 1 backup of stand by database .and i assume u wont go for taking backup of standby database.
just worry about the archives of primary database.
kanchan
OCP ( 9i,10g)

Creating standby or logical standby database manually?

Hi,
I have to create 4 logical standby databases on a Linux Red Hat 64-bits server.
The primary databases reside on another Linux Red Hat 64-bits server.
The oracle database version is 10.2.0.3.
The question is as follows:
Should I create the logical standby databases manually or should I do it with the Oracle EM Grid Control?
I have read that the creation of standby databases with the Grid Control is very straightforward, but I really want to read of some of your experiences.
I have read that there are some problems in Grid Control with the test of Failover and Switchover.
Please advice.

Hi,
It all depends.
I assume you don't backup your database to tape using RMAN.
Do you backup your database to disk using RMAN?
You would need to set up NFS links from your standby server to the primary server.
For this purpose, in 9i, I made sure my disk backup ended up in <directory>/backup/<nodename>, so I could easily set up a NFS link.
If you do it manually, you need to have made a full database RMAN backup first.
Probably Grid Control is taking care of this for you.
I have done it once using database control in 10g. It is really simple, and you just have to click a few buttons and sit back.
Doing it manually is slightly more work: you need to make sure parameters are correct and you need to write a (generic) script of less than 10 lines.
You probably do have more control over it, though RMAN's duplicate database command is robust and can be restarted easily.
I can't answer your last remark.
Hth
Sybrand Bakker
Senior Oracle DBA

How to convert logical standby database to Physical Standby Database

Hi,
Does anyone know how to convert logical standby database(10.2.0.3) to Physical Standby Database(10.2.0.3)? Is this possible? If so,please give me steps for it.
Thanks.
Regards,
RJ.

I don't believe this to be possible. One of the steps invloved in the creation of a logical standby is the following:
ALTER DATABASE OPEN RESETLOGS;
This makes the logical standby a different incarnation of the db from the primary.
A physical standby is a binary copy of a primary db, a logical standby is a completely seperate db that just happens to get sql statements applied to it that are generated from a primary db, but is open read/write.
One avenue, though would be if you had flashback database enabled and you flashed back all the way to when the db was a physical standby and then rolled forward with the archived redo logs.
It's somewhat unlikely you are in that situation, but that is a possibility.
Indeed the 11g snapshot standby does this sort of thing:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28294/manage_ps.htm#sthref740
jason.
http://jarneil.wordpress.com

Second logical standby

Hello,
i've this architecture: 1 production database, 1 physical standby, and 2 logical standby. One of the logical standby must now be rebuild, and my question is: i have already play the DBMS_LOGSTDBY.BUILD procedure for the old logical standby that i have to rebuild, do i have to replay this procedure in my rebuild script?
Thanks for suggestion

In the new script most of the primary related issues you can avoid as they are set during the first logical standby creation.

Creation of Logical Standby DB

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