Primary RAC with physical standby

Hi all,
i have production setup as below
2 node 10gR2 RAC on win2K3 datafiles on ASM
Oracle Standard edition
On the standby site it will be a manual standby (since SE) .
Biz doesnt want the archives to be on local NTFS partition, hence the archives are on ASM. To resfresh the standby i need to transfer the archives through RMAN (catalog database is used) but facing issues when i take archive backup and put it on standby (error says that the files are already on storage) . So i am unable to refresh .
i guess it should be done through some scripts .... but how to register archives on the standby site.
Xml interface through catxdb was also tried(where we can ftp files from asm) but it takes only one file at a time so there will be manual intervention and not effective strategy
one more question: can i mount a shared drive (archives on this location) on primary RAC and same to be mounted on standby. If this is possible then i just need to shutdown the standby and give path of archives in asm and recovery can be done ?
pls share your feedback.....
thanks
[email protected]

So what I would do is this :
On the Primary :
alter system set log_archive_dest_state_2=defer;
Then stop recovery on the Standby and shutdown the database.
Startup mount and start recovery again and run you query again on that sequence.
If it finally clears enable the primary again.
alter system set log_archive_dest_state_2=enable;
If not try to register it yourself.
By chance does this show its waiting for a gap
select process, status, sequence#, block# from v$managed_standby;Best Regards
mseberg
Edited by: mseberg on Aug 23, 2011 8:38 AM

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http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/upgrades.htm#CHDBJAGG
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You require others to search for free on your behalf?
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Hi,
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SQL> select thread#,max(sequence#) from v$log_history group by thread#;
THREAD# MAX(SEQUENCE#)
1 7
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HI CKPT,
Thanks for the reply. All the Archives from primary are transferred to the standby by RFS. Also i tried to register the log files manually even but it says already registered. They are no errors in the primary instance alert log file. Please find the log
SEVERITY ERROR_CODE MESSAGE TO_CHAR(TIMESTAMP,'D
Informational 0 ARC0: Archival started 20-MAR-2012 06:51:36
Informational 0 ARC1: Archival started 20-MAR-2012 06:51:36
Informational 0 ARC0: Becoming the 'no FAL' ARCH 20-MAR-2012 06:51:36
Informational 0 ARC0: Becoming the 'no SRL' ARCH 20-MAR-2012 06:51:36
Informational 0 ARC1: Becoming the heartbeat ARCH 20-MAR-2012 06:51:36
Informational 0 Redo Shipping Client Connected as PUBLIC 20-MAR-2012 06:52:07
Informational 0 -- Connected User is Valid 20-MAR-2012 06:52:07
Informational 0 RFS[1]: Assigned to RFS process 15934 20-MAR-2012 06:52:07
Informational 0 RFS[1]: Identified database type as 'physical standby' 20-MAR-2012 06:52:07
Warning 0 RFS[1]: No standby redo logfiles created 20-MAR-2012 06:52:07
Control 0 Attempt to start background Managed Standby Recovery process 20-MAR-2012 06:52:42
Control 0 MRP0: Background Managed Standby Recovery process started 20-MAR-2012 06:52:42
Informational 0 Managed Standby Recovery not using Real Time Apply 20-MAR-2012 06:52:47
Informational 0 Media Recovery Log /oracle/STDBY/arch/1_3_777567883.d 20-MAR-2012 06:52:49
bf
Control 0 MRP0: Media Recovery Complete 20-MAR-2012 06:53:04
Control 0 MRP0: Background Media Recovery process shutdown 20-MAR-2012 06:53:06
Informational 0 Managed Standby Recovery not using Real Time Apply 20-MAR-2012 06:53:24
Control 0 Media Recovery Complete 20-MAR-2012 06:53:43
Control 0 Attempt to start background Managed Standby Recovery process 20-MAR-2012 06:54:55
Control 0 MRP0: Background Managed Standby Recovery process started 20-MAR-2012 06:54:55
Informational 0 Managed Standby Recovery not using Real Time Apply 20-MAR-2012 06:55:00
Informational 0 Media Recovery Log /oracle/STDBY/arch/1_3_777567883.d 20-MAR-2012 06:55:01
bf
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Control 0 MRP0: Background Media Recovery process shutdown 20-MAR-2012 06:55:18
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Informational 0 -- Connected User is Valid 20-MAR-2012 07:31:03
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Warning 0 RFS[2]: No standby redo logfiles created 20-MAR-2012 07:31:06
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Informational 0 Managed Standby Recovery not using Real Time Apply 20-MAR-2012 07:31:37
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bf
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Database log mode Archive Mode
Automatic archival Enabled
Archive destination /oracle/STDBY/arch/
Oldest online log sequence 13
Next log sequence to archive 0
Current log sequence 14
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total 3754456
drwxr-xr-x 4 oracle dba 4096 Feb 13 17:38 ..
-rw-r----- 1 oracle dba 908516864 Mar 20 06:37 1_8_777567883.dbf
-rw-r----- 1 oracle dba 770419200 Mar 20 06:40 1_3_777567883.dbf
-rw-r----- 1 oracle dba 757698048 Mar 20 06:41 1_4_777567883.dbf
-rw-r----- 1 oracle dba 5171712 Mar 20 06:41 1_5_777567883.dbf
-rw-r----- 1 oracle dba 1060801024 Mar 20 06:43 1_6_777567883.dbf
-rw-r----- 1 oracle dba 323025920 Mar 20 06:43 1_7_777567883.dbf
-rw-r----- 1 oracle dba 1558016 Mar 20 06:43 1_9_777567883.dbf
-rw-r----- 1 oracle dba 4608 Mar 20 06:43 1_10_777567883.dbf
-rw-r----- 1 oracle dba 1579008 Mar 20 06:52 1_11_777567883.dbf
-rw-r----- 1 oracle dba 11876864 Mar 20 07:31 1_12_777567883.dbf
-rw-r----- 1 oracle dba 2560 Mar 20 07:31 1_13_777567883.dbf
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We have flashback turned on in both the primary and standby. We want to flashback the primary (and subsequently the standby) to some previous point in time.
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Hello All,
I am using Oracle RAC 11.2.0.3 as primary database, we are going to start using Oracle data guard.
So I am designing my infrastructure and planing to use Oracle 11.2.0.3 Single instance as my physical stand by database.
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in the below link
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RAC & DataGuard (Physical Standby)

Hello all,
I'm trying to get a high level overview of how RAC & DataGuard would behave in the following configuration. I've written down my understanding of how things would work. Please correct me if I'm wrong.
1) 2 node RAC (Primary Database) with a single instance physical standby.
a) Same standby related init.ora parameters would have to configured on both primary rac nodes.
b) The redo apply service at the standby would merge the redo from the 2 threads from the primary and apply it to the standby to keep it in sync.
c) During switch over only one primary RAC instance should be up besides the standby instance.
d) During switch back again only one primary RAC instance should be up besides the standby instance.
e) During failover ofcourse both primary instances would be down which warrants the fail over.
2) 2 node RAC (Primary) with a 2 node physical standby
This where it gets complex and I'm not really sure how a,b,c,d,e would be in this scenario. Appreciate if you could shed some light on this and list what
a,b,c,d,e would look like in this scenario.
I'm assuming that only one instance in the standby RAC should be up when the standby is in RAC configuration for the redo apply to work.
Also, if there is a white paper that details step by step procedure for setting up the above 2 scenarios, please let me know. So far I was able to find only the MAA white paper but that was not very helpful. If you can prescribe a good book for RAC & DataGuard that would be great too..
Thanks for your help

>
1) 2 node RAC (Primary Database) with a single instance physical standby.
a) Same standby related init.ora parameters would have to configured on both primary rac nodes.Usually rac nodes share their spfile on a shared diskvolume or through ASM. So they have identical DG parameter anyway
b) The redo apply service at the standby would merge the redo from the 2 threads from the primary and apply it to the standby to keep it in sync.Correct
c) During switch over only one primary RAC instance should be up besides the standby instance.
Sounds logical to me
Edit: In fact during normal operation both RAC nodes are up, so during switchover they are both active too
It is the configuration that matters. As soon as the standby is becoming primary, it might be that it talks only to one RAC node for its log-apply files
d) During switch back again only one primary RAC instance should be up besides the standby instance.That single was the only one running in step c.
e) During failover ofcourse both primary instances would be down which warrants the fail over.Correct. Keep in mind that during a failover the RAC config would be deconfigured from the DG setup and has to be added back again as standby.
You might have to take a look at: http://www.oracle.com/technology/deploy/availability/pdf/MAA_WP_10g_RACPrimarySingleInstancePhysicalStandby.pdf
>
2) 2 node RAC (Primary) with a 2 node physical standby
This where it gets complex and I'm not really sure how a,b,c,d,e would be in this scenario. Appreciate if you could shed some light on this and list what
a,b,c,d,e would look like in this scenario.
I'm assuming that only one instance in the standby RAC should be up when the standby is in RAC configuration for the redo apply to work.
No. RAC primary to RAC Standby would mean both nodes are up on both side. PrimNode1 send its redo logs to StandbyNode1 and the same for PrimNode2 and StandbyNode2
Have a look here: http://www.oracle.com/technology/deploy/availability/pdf/MAA_WP_10g_RACPrimaryRACPhysicalStandby.pdf
HTH,
FJFranken
My Blog: http://managingoracle.blogspot.com
Edited by: fjfranken on 16-jul-2010 1:13

Restore primary database using physical standby

hi,
i am taking rman backup on production database,we have physical standby.coming month i have to take backup from standby instead of prod db.pls advise me, is it possible to restore and recover production database using standby database backup.if production crashed.pls advise me .i am new to dba.if possible pls provide proper steps.
Regards
Faruk

Faruk.m wrote:
hi,
i have to take backup on standby instead of production.failover i can do.but i need to know the recovery procedures from standby.and thank u for reply.i want, is it possible to restore my production controlfile with controlfile backup from standby.
i tested with my local database ,that below:
1.backup with controlfile from standby (rman>backup current controlfile)
2.manual deleted my test db controlfile,tried to restore from backup taken from standby(rman>restore controlfile from '*****************';)
3.rman>restore database
3.but it shows error (datafile already exists) ,controlfile tried to create datafiles on standby location.
my conclusion:above my cmds used to create datafiles on standby becoz i restored with standby controlfile.
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regards
farukHi Faruk,
Sorry my late.
I can share with you my test.
It is my standby database, I connecting with RMAN
SQL> select database_role, db_unique_name, name from v$database;
DATABASE_ROLE      DB_UNIQUE_NAME           NAME
PHYSICAL STANDBY       stldb                    ADMDB
[oracle@oel62-x64 oradata]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Tue Apr 23 12:23:00 2013
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: ADMDB (DBID=4063877183, not open)
RMAN> backup current controlfile;
Starting backup at 23-APR-13
Starting implicit crosscheck backup at 23-APR-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=29 device type=DISK
Finished implicit crosscheck backup at 23-APR-13
Starting implicit crosscheck copy at 23-APR-13
using channel ORA_DISK_1
Finished implicit crosscheck copy at 23-APR-13
searching for all files in the recovery area
cataloging files...
no files cataloged
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
channel ORA_DISK_1: starting piece 1 at 23-APR-13
channel ORA_DISK_1: finished piece 1 at 23-APR-13
piece handle=/u01/app/oracle/fast_recovery_area/stldb/STLDB/backupset/2013_04_23/o1_mf_ncnnf_TAG20130423T122310_8qdfq19x_.bkp tag=TAG20130423T122310 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 23-APR-13
RMAN> exit
Recovery Manager complete.
[oracle@oel62-x64 oradata]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue Apr 23 12:23:26 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> shut immediate;
ORA-01109: database not open
Database dismounted.
ORACLE instance shut down.
SQL> startup nomount;
ORACLE instance started.
Total System Global Area 551165952 bytes
Fixed Size              2230232 bytes
Variable Size            167774248 bytes
Database Buffers       377487360 bytes
Redo Buffers              3674112 bytes
SQL>
SQL>
SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@oel62-x64 oradata]$ rman target /
Recovery Manager: Release 11.2.0.3.0 - Production on Tue Apr 23 12:34:58 2013
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: ADMDB (not mounted)
RMAN> restore controlfile from '/u01/app/oracle/fast_recovery_area/stldb/STLDB/backupset/2013_04_23/o1_mf_ncnnf_TAG20130423T122310_8qdfq19x_.bkp';
Starting restore at 23-APR-13
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=19 device type=DISK
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:01
output file name=/u01/app/oracle/oradata/stldb/control01.ctl
Finished restore at 23-APR-13
RMAN> alter database mount;
database mounted
released channel: ORA_DISK_1
RMAN> exit
Recovery Manager complete.
[oracle@oel62-x64 oradata]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Tue Apr 23 12:35:31 2013
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> select database_role, db_unique_name, name from v$database;
DATABASE_ROLE      DB_UNIQUE_NAME           NAME
PRIMARY       stldb                    ADMDB
As show here, you can backup standby control file, and restore as primary .
Regars
Mahir M. Quluzade
http://www.mahir-quluzade.com

Data Guard Archive Latency with Physical Standby

I'm trying to get a latency number that tells me how long it took ARCH to move an archive file from the Primary instance to the physical standby instance and "apply it". I see lots of numbers but I can't make heads or tails of them. Does a metric such as this exist in a log file, a V$ view, or can it possibly be calculated or extrapolated?
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This is how calculated the same in a test env.
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I am upgrading from 10204 with a Physical Standby this weekend. Doc 278641.1 mentions the only the Patchset and Interim patching and not the CPU. Should I break out the CPU patching into its own activity or can I do it at the same time as the Patchset and Interim patching? I would like to get all 3 done during the same downtime. Thanks for the help.
RCP

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Hi everyone,
I want configure two separate Physical standby one work in Redo apply and one in log apply mode.
is it posible?

user011232 wrote:
Hi everyone,
I want configure two separate Physical standby one work in Redo apply and one in log apply mode.
is it posible?Yes it can possible very much. You have to configure as below in remote destinations.
Example_:-
Log_archive_dest_2='service= stby1 lgwr async ';
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What is the plan behind that? just for testing purpose? Even me too not tested but you can try configuring as above. :)
Edited by: CKPT on Feb 14, 2012 5:46 PM

Who has Docs for (RAC) 10.2.0.5 CPU Patches with Physical Standby db ?

thanks
Edited by: ROY123 on Nov 8, 2010 1:08 PM
Edited by: ROY123 on Nov 8, 2010 1:16 PM

Hi,
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hi
i want to create two standby (physical) and one primary dataguard.
so please tell me what is sequence for db_file_name_convert and db_file_name_convert.
i mean how i will give database name or path in this parameter.

Hello;
One option is Data Guard Cascading Standby.
Here are my complete test notes if it help :
http://www.visi.com/~mseberg/Data_Guard_Cascading_Standby_Setup_and_Test.pdf
Best Regards
mseberg

Primary RAC with physical standby

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