Logical Standby Database with 10g+ASM on both sides??

Hi out there,
is there a known way to establish a logical standby database on 10g, if both
sides are running with an ASM setup?
I've tried to create one out of a physical standby database (which is set up
and running w/o any problems), like a book suggested me to do.
The procedure was:
1. switch on supplemental logging
2. prepare initiation parameters (for archive logging etc.) on both sides for
logical stb.
3. shut down the phyiscal standby
4. alter database create logical standby controlfile as '<path>'; on the
primary, transfer the controlfile to the standby db. Here I had to use RMAN
to copy the controlfile into the ASM System, and modify the initfile/spfile
in order to use the controlfile. No problem so far.
5. mount the standby database, alter database recover managed standby database
disconnect; -> At this point, the alert log complained about non-available
datafiles.
6. alter database activate standby database; --> fails ("needs recovery") due
to last point.
The trouble is, the controlfile created at point 4 cointains wrong paths to
the datafiles. Since I can not have the same disk group name on the standby
system, and since ASM renames the stored datafiles by its own, the complaints
of point 5 are comprehensible, but nevertheless annoying.
I tried to backup a controlfile to trace and change the paths, but at after
mounting the standby with this controlfile and proceeding at point 5, the
system says "<path> is not a standby controlfile"
Is there a different way of creating a "Logical Standby Database with 10g+ASM
on both sides"? Metalink said nothing about LogStby and ASM.
Best regards and thanks in advance,
Martin

I'm not sure if this will work but try:
1. create trace control file (you did it)
2. change paths (you did it)
3. recrate control file (you did it)
... there was error occured during mount before
so mount database (not as standby)
4. create standby control file (from recreated control file)
5. shutdown instance, replace control file with new standby control file or replace the control filename in parameter file.
6. mount as standby
What happend?
Update: Tested on my side and it has worked fine... How about you?
Message was edited by:
Ivan Kartik

Similar Messages

Add Datafile in Logical Standby Database

Hi,
I have add one datafile in our primary RAC DB. We had logical standby database with file management is equal to manual. Both the primary RAC and logical standby db have the different storage structure. When the archive applied on the logical standby database its throws the error " error in creating datafile 'path'";
Would appreciate if come to know the steps to add the datafile in this kind of environment. and how can i overcome from this problem now except skip transaction for that ddl.
Thanks in advance.
Dewan

When the archive applied on the logical standby database its throws the error " error in creating datafile 'path'";Can you post the error message with the number.
From Manual..
8.3.1.2 Adding a Tablespace and a Datafile When STANDBY_FILE_MANAGEMENT Is Set to MANUAL
The following example shows the steps required to add a new datafile to the primary and standby database when the STANDBY_FILE_MANAGEMENT initialization parameter is set to MANUAL. You must set the STANDBY_FILE_MANAGEMENT initialization parameter to MANUAL when the standby datafiles reside on raw devices.
Add a new tablespace to the primary database:
SQL> CREATE TABLESPACE new_ts DATAFILE '/disk1/oracle/oradata/payroll/t_db2.dbf'
2> SIZE 1m AUTOEXTEND ON MAXSIZE UNLIMITED;
Verify the new datafile was added to the primary database:
SQL> SELECT NAME FROM V$DATAFILE;
NAME
/disk1/oracle/oradata/payroll/t_db1.dbf
/disk1/oracle/oradata/payroll/t_db2.dbf
Perform the following steps to copy the tablespace to a remote standby location:
Place the new tablespace offline:
SQL> ALTER TABLESPACE new_ts OFFLINE;
Copy the new tablespace to a local temporary location using an operating system utility copy command. Copying the files to a temporary location will reduce the amount of time the tablespace must remain offline. The following example copies the tablespace using the UNIX cp command:
% cp /disk1/oracle/oradata/payroll/t_db2.dbf
/disk1/oracle/oradata/payroll/s2t_db2.dbf
Place the new tablespace back online:
SQL> ALTER TABLESPACE new_ts ONLINE;
Copy the local copy of the tablespace to a remote standby location using an operating system utility command. The following example uses the UNIX rcp command:
%rcp /disk1/oracle/oradata/payroll/s2t_db2.dbf standby_location
Archive the current online redo log file on the primary database so it will get transmitted to the standby database:
SQL> ALTER SYSTEM ARCHIVE LOG CURRENT;
Use the following query to make sure that Redo Apply is running. If the MRP or MRP0 process is returned, Redo Apply is being performed.
SQL> SELECT PROCESS, STATUS FROM V$MANAGED_STANDBY;
Verify the datafile was added to the standby database after the archived redo log file was applied to the standby database:
SQL> SELECT NAME FROM V$DATAFILE;
NAME
/disk1/oracle/oradata/payroll/s2t_db1.dbf
/disk1/oracle/oradata/payroll/s2t_db2.dbf

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
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Kindly advice over the same

Create an Object in Logical standby database in Oracle 10G

Hi,
I have logical standby database in oracle 10g R2 for reporting purpose.Now i want to create procedure in logical standby which is use to create new temp table in logical standby and contained data generated from select operation on existing table.
Can i create a new user in logical standby database,add new tablespace in logical standby which can insert,update and delete data in standby database base table?
kindly provide me the steps to implement all this.What will be effect if i set guard_Status in v$database is NONE in logical standby?
Thanks,
Shital Patel

Hi Shital,
Guard_status protects the data from being changed.
ALL- By default it is not possible for a non-privileged user to modify data on a data guard SQL apply database. This is because the database guard is automatically set to ALL.
With this level of security, only SYS user can modify the data.
STANDBY- When you set this level of security, users are able to modify data that is not maintained by the Logical apply engine.
NONE permits any users to access the standby database as long as they have correct privileges. This is the normal security for all data in the database.
You can change the guard status value from ALL to NONE in order to allow non-privileged users to modify data and Yes you can create user and extra tablespace in logical standby database..this is what the one of advantage of using Logical standby database.
SQL> ALTER DATABASE GUARD NONE;
Thanks

What are the differences of creating a physical standby database with ASM?

I want to create a physical standby database for my 10g(10.2.0.1) database. But it is using ASM. Is it possible to create a standby database for a database using ASM?
What are the differences of creating a physical standby database with ASM?

tell us what your research shows and we'll try to
validate it. I am simulating Oracle ASM on a PC and I want to try
DataGuard on it now. So I am trying to create DataGuard
on an ASM system. The purpose is only learning and test.That's telling us how you are researching, not what you have observed.
Your research could have included looking at the documetation, and you might have found http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/scenarios.htm#sthref1642
which discusses exactly what you are looking for.
Message was edited by:
Hans Forbrich

Apply Patches on Oracle Database with Logical Standby Database

Here I am:
I got a primary database with a logical standby database running Oracle 11g. I got two client applications, one is the production site pointing to the primary one, another one is just a backup site pointing to the logical one.Things will only be written into the primary database every mid night and client applications can only query the database but not add, update nor delete.And now, I want to apply the latest patch on both of my databases. I am also the DNS administrator, I can make the name server pointing to the backup site instead of the production one.I want to firstly apply the patch on the logical one, and then the physical one.
I found some reference which explains how to apply patches by adopting "Rolling Upgrade Method". however, I want to avoid doing any "switch over" mentioned in the reference because I can make use of name server. Can I just apply patches as the following way?
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3)let the name server point to the backup site
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5)Start SQL apply
6)Let the name server point back to the production site
Thanks in advance.

Pl follow the steps in MOS Doc 437276.1 ( Upgrading Oracle Database with a Logical Standby Database In Place )
HTH
Srini

11g database compatible with 10g ASM?

Hi all,
I have one server with Oracle 10g database and ASM installed. Now I need to install a new database on 11g version. Know you if my new 11g database can use the 10g ASM? Or I need to create a new ASM in 11g too?
Thanks in advance,
Jordi

PLease look at the following link. The 11g Database is indeed going to work with 10g asm but the features available will vary depending on the version compatibility.
http://download.oracle.com/docs/cd/B28359_01/server.111/b31107/asmdiskgrps.htm#CHDJDDFG
HTH
Aman....

Standby database with ASM disks?

Has anyone successfully created a standby database when the primary database and the standby database are using ASM disks? If the answer is yes, how did you copy the files(database backup, control files, etc.) from the asm on primary to asm on standby?
Note: I am using 10gR2 on HP-UX but the copy part should be platform independent so however you did it should help me.

Hi d_carmichael2001,
I had done database migration from Non-asm to ASM for single instance by RMAN.
and i think mostly steps are same for create standby database on ASM.
Have a Look.......
1.create a ASM instance manually on new server.
2.Take a backup of Prod database and controlfile.
**backup of controlfile for Standby should be taken as
BACKUP CURRENT CONTROLFILE FOR STANDBY;
Backup database cmd will be same as Backup database plus archivelog;
3. create standby database by using following cmd and set necessary parameter before execute it
Diskgroup for standby should be define in standby spfile's.
**Standby database should be in nomount stange
**connect as % rman TARGET / AUXILIARY SYS/sys_pwd@sbdb1
Use
DUPLICATE TARGET DATABASE FOR STANDBY ;
This command will copy the datafiles, archived redo log files and standby control file in the backup set to the standby database's storage area.
Thanks
Kuljeet Pal Singh

Redo data not applied on logical standby database 10g

after a network problem within the primary and the logical standby database. The redo data is not applied on the logical standby even if all the archived log are sent to it.
The below is the output from v$archive_gap and DBA_LOGSTDBY_LOG
SQL> select * from v$archive_gap;
no rows selected
SQL> SELECT SEQUENCE#, FIRST_TIME, APPLIED
FROM DBA_LOGSTDBY_LOG
ORDER BY SEQUENCE#; 2 3
SEQUENCE# FIRST_TIME APPLIED
3937 24-FEB-10 01:48:23 CURRENT
3938 24-FEB-10 10:31:22 NO
3939 24-FEB-10 10:31:29 NO
3940 24-FEB-10 10:31:31 NO
3941 24-FEB-10 10:33:44 NO
3942 24-FEB-10 11:54:17 NO
3943 24-FEB-10 12:05:30 NO
Any help?
Thanks

ORA-00600: internal error code, arguments: [krvxgirp], [], [], [], [], [], [], []
LOGSTDBY Analyzer process P003 pid=48 OS id=8659 stopped
Wed Feb 24 16:49:04 2010
Errors in file /oracle/product/10.2.0/admin/umarket/bdump/oradb_lsp0_8651.trc:
ORA-12801: error signaled in parallel query server P003
ORA-00600: internal error code, arguments: [krvxgirp], [], [], [], [], [], [], []
and below an Warning: Apply error received: ORA-26714: User error encountered while applying. Clearing. from oradb_lsp0_8651.trc
Thanks

How to delete the foreign archivelogs in a Logical Standby database

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I am doing hot backups of the databases to FRA for both databases. Using ASM, FRA, in a Data Guard environment.
I am not backing up anything to tape yet.
The ASM FRA foreign_archivelog directory on the logical standby FRA keeps growing and nothing is get deleted when
I run the following command every day.
delete expired backup;
delete noprompt force obsolete;
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CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 9 DAYS;
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE DB_UNIQUE_NAME 'WMRTPRD' CONNECT IDENTIFIER 'WMRTPRD_CWY';
CONFIGURE DB_UNIQUE_NAME 'WMRTPRD2' CONNECT IDENTIFIER 'WMRTPRD2_CWY';
CONFIGURE DB_UNIQUE_NAME 'WMRTPRD3' CONNECT IDENTIFIER 'WMRTPRD3_DG';
CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON ALL STANDBY;
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CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 9 DAYS;
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How do I cleanup/delete the old ASM foreign_archivelog files?

OK, the default is TRUE which is what it is now
from DBA_LOGSTDBY_PARAMETERS
LOG_AUTO_DELETE TRUE SYSTEM YES
I am not talking about deleting the Archive logs files for the Logical database that it is creating, but the Standby archive log files being sent to the Logical Database after they have been applied.
They are in the alert log as follows under RFS LogMiner: Registered logfile
RFS[1]: Selected log 4 for thread 1 sequence 159 dbid -86802306 branch 763744382
Thu Jan 12 15:44:57 2012
*RFS LogMiner: Registered logfile [+FRA/wmrtprd2/foreign_archivelog/wmrtprd/2012_01_12/thread_1_seq_158.322.772386297] to LogM*
iner session id [1]
Thu Jan 12 15:44:58 2012
LOGMINER: Alternate logfile found. Transition to mining archived logfile for session 1 thread 1 sequence 158, +FRA/wmrtprd2/
foreign_archivelog/wmrtprd/2012_01_12/thread_1_seq_158.322.772386297
LOGMINER: End mining logfile for session 1 thread 1 sequence 158, +FRA/wmrtprd2/foreign_archivelog/wmrtprd/2012_01_12/threa
d_1_seq_158.322.772386297
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Creating a Standby Database with the Same Directory Structure

Hello gurus,
I am self-learning the feature Oracle Data Guard, so I am testing it on Oracle 10g R2.
At Oracle documentation there is a section F.4.: Creating a Standby Database with the Same Directory Structure*, that explains how to create a standby database with RMAN but there is something that I don´t understand:
In the standby server, I created a database with the SID equal to production database* with the objetive to have the same directory structure, but when I try to startup nomount the standby database with pfile appear this expected error:
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Thanks in advanced.

Uwe and mseberg: thanks for your quick answers
I have a doubt: How can you have the same directory structure if you have differents SIDs?, for example if you follow the OFA suggestions you would must have:
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On StandBy server: */u01/app/oracle/oradata/STANDBY/system.dbf*
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Do you understand my doubt? Excuse me for my english.
Thanks.

MV Logs not getting purged in a Logical Standby Database

We are trying to replicate a few tables in a logical standby database to another database. Both the source ( The Logical Standby) and the target database are in Oracle 11g R1.
The materialized views are refreshed using FAST REFRESH.
The Materialized View Logs created on the source ( the Logical Standby Database) are not getting purged when the MV in the target database is refreshed.
We checked the entries in the following Tables: SYS.SNAP$, SYS.SLOG$, SYS.MLOG$
When a materialized view is created on the target database, a record is not inserted into the SYS.SLOG$ table and it seems like that's why the MV Logs are not getting purged.
Why are we using a Logical Standby Database instead of the Primary ? Because, the load on the Primary Database is too much and the machine doesn't have enough resources to support MV based replication. The CPU usage is 95% all the time. The appplication owner won't allow us to go against the Primary database.
Do we have to do anything different in terms of Configuration/Privileges etc. because we are using a Logical Standby Database as a source ?
Thanks in Advance.

We have a 11g RAC database in solaris OS where there is huge gap in archive log apply.
Thread Last Sequence Received Last Sequence Applied Difference
1 132581 129916 2665
2 108253 106229 2024
3 107452 104975 2477
The MRP0 process seems not to be working also.Almost 7000+ archives lag in standby if compared with primary database.
i suggest you to go with Incremental rollforward backups to make it SYNC, use this below link for step by step procedure.
http://www.oracle-ckpt.com/rman-incremental-backups-to-roll-forward-a-physical-standby-database-2/
Here questions.
1) Whether those archives are transported & just not applied?
2) Is in production do you have archives or backup of archives?
3) What you have found errors in alert log file?
post
SQL> select severity,message,error_code,timestamp from v$dataguard_status where dest_id=2;
4) What errors in primary database alert log file?
Also post
select     ds.dest_id id
,     ad.status
,     ds.database_mode db_mode
,     ad.archiver type
,     ds.recovery_mode
,     ds.protection_mode
,     ds.standby_logfile_count "SRLs"
,     ds.standby_logfile_active active
,     ds.archived_seq#
from     v$archive_dest_status     ds
,     v$archive_dest          ad
where     ds.dest_id = ad.dest_id
and     ad.status != 'INACTIVE'
order by
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/Also check errors from standby database.

Slow SQL Apply on Logical Standby Database in Oracle10g

Hi,
We are using Oracle 10g Logical Standby database in our production farm but whenever there is bulk data load (5-6 GB data) on the primary database, the logical standby seems to be hung. It takes days to apply the 5-6 GB data on the logical standby.
Can anybody give me some pointers how can I make my SQL Apply fast on the logical standby for bulk data.
Thanks
Amit

Hi there,
I've a similar problem. I did an insert of 700k on a table. It takes me over 1 1/2 hours to see the data. Notice, I increased the "max_sga" to 300m and "max_servers" to 25" and didn't help the performance at all.
My version is 10.2.0.3 with the patch 6081550.
APPLIED_SCN APPLIED_TIME RESTART_SCN RESTART_TIME LATEST_SCN LATEST_TIME MINING_SCN MINING_TIME
1015618 29-NOV-2007 18:28:51 1009600 29-NOV-2007 18:28:51 1017519 29-NOV-2007 19:54:07 1015656 29-NOV-2007 18:32:14

Real-time apply cascaded logical standby database

Hi
I have a primary database orcl
Pysical standby database orcl_std
Cascaded logical standby database orcl_tri which receives archivelogs from orcl_std
Real time apply is enabled both in orcl_std (physical standby) and orcl_tri (logical standby)
When I create a table in primary orcl, I am unable to see it on orcl_tri (Although real time apply is enabled)
However, when I switch log in primary, I can see the new table on orcl_tri.
My question is, why realtime apply is not working in my scenerio ?
orcl_std : ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION USING CURRENT LOGFILE;
orcl_tri: ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE;
Oracle 11.2.0.3.0

Hi mseberg,
Thanks for your reply.
There is no load or network issue as I`ve just created these databases for the experiement.
I have the same output from standby and primary databases.
SQL> select bytes/1024/1024 from v$standby_log;
BYTES/1024/1024
             10
             10
             10I can see below output in standby alertlog
Fri Nov 16 08:39:51 2012
ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE
ALTER DATABASE START LOGICAL STANDBY APPLY (orcl)
with optional part
IMMEDIATE
Attempt to start background Logical Standby process
Fri Nov 16 08:39:51 2012
LSP0 started with pid=37, OS id=16141
Completed: ALTER DATABASE START LOGICAL STANDBY APPLY IMMEDIATE
LOGMINER: Parameters summary for session# = 1
LOGMINER: Number of processes = 3, Transaction Chunk Size = 201
LOGMINER: Memory Size = 30M, Checkpoint interval = 150M
LOGMINER: SpillScn 1953318, ResetLogScn 995548
LOGMINER: summary for session# = 1
LOGMINER: StartScn: 0 (0x0000.00000000)
LOGMINER: EndScn: 0 (0x0000.00000000)
LOGMINER: HighConsumedScn: 1955287 (0x0000.001dd5d7)
LOGMINER: session_flag: 0x1
LOGMINER: Read buffers: 16
Fri Nov 16 08:39:55 2012
LOGMINER: session#=1 (Logical_Standby$), reader MS00 pid=30 OS id=16145 sid=49 started
Fri Nov 16 08:39:55 2012
LOGMINER: session#=1 (Logical_Standby$), builder MS01 pid=39 OS id=16149 sid=44 started
Fri Nov 16 08:39:55 2012
LOGMINER: session#=1 (Logical_Standby$), preparer MS02 pid=40 OS id=16153 sid=50 started
LOGMINER: Turning ON Log Auto Delete
LOGMINER: Begin mining logfile during commit scan for session 1 thread 1 sequence 202, +DATA/orcl_std/archivelog/2012_11_15/thread_1_seq_202.349.799450179
LOGMINER: End mining logfiles during commit scan for session 1
LOGMINER: Turning ON Log Auto Delete
LOGMINER: Begin mining logfile for session 1 thread 1 sequence 202, +DATA/orcl_std/archivelog/2012_11_15/thread_1_seq_202.349.799450179
LOGMINER: End   mining logfile for session 1 thread 1 sequence 202, +DATA/orcl_std/archivelog/2012_11_15/thread_1_seq_202.349.799450179
Fri Nov 16 08:40:04 2012
LOGSTDBY Analyzer process AS00 started with server id=0 pid=41 OS id=16162
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS03 started with server id=3 pid=45 OS id=16175
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS04 started with server id=4 pid=46 OS id=16179
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS01 started with server id=1 pid=42 OS id=16167
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS05 started with server id=5 pid=47 OS id=16183
Fri Nov 16 08:40:05 2012
LOGSTDBY Apply process AS02 started with server id=2 pid=44 OS id=16171Do you think real-time apply wasnt setup properly ?

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

Logical Standby Database with 10g+ASM on both sides??

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