Data Guard :: How To Defile Logfile Of Standby Database
Feb 18, 2012
How can i define the logfile of standby database when using then duplicate database to create the standby database? the flowing command can not run.
run{
duplicate target database for standby dorecover nofilenamecheck
logfile group 1 ('/u01/app/oracle/oradata/oracl/redo1_1.log','/u01/app/oracle/oradata/oracl/redo1_2.log') size 512M,
group 2 ('/u01/app/oracle/oradata/oracl/redo2_1.log','/u01/app/oracle/oradata/oracl/redo2_2.log') size 512M,
group 3 ('/u01/app/oracle/oradata/oracl/redo3_1.log','/u01/app/oracle/oradata/oracl/redo3_2.log') size 512M;
}
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May 26, 2013
I have dataguard configuration operating in maximum availability mode with a local standby db (A - lgwr sync not using real time apply) and a remote standby db (B - lgwr async). I then simualted a crash of my primary database with batch jobs running. Since the stby db A is in lgwr sync option ,all the commited data in the current online redo log has been transmitted to stby A and is present in its stby redo log (Group 2).How do I apply this stby redo log to the remote stby db.
Tried the following methods.
1.ftp the stby redo log to the remote db and tried to regiter it, got an error that it is not completely archived.
2.issued the recover standby database command and supplied the stby redo log when it asked for the sequence in the stby redo, got an error saying there is corruption in a block(tried this option multiple times ended up with the same result.)
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Oct 17, 2012
Controlling User Access to Tables in a Logical Standby Database can be controlled using the following command:
ALTER DATABASE GUARD STANDBY;
My simple question is: how can I know the current active Guard setting in the standby database?
Oracle 11g R2.
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Apr 22, 2011
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?
1)Stop SQL apply
2)Apply patches on logical standby database
3)let the name server point to the backup site
4)Apply patches on the primary database
5)Start SQL apply
6)Let the name server point back to the production site
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Aug 30, 2013
If flashback is enable in physical standby database 1. If we failover at 11AM can I flash back NEW primary database to 6 AM ? 2. if I convert physically standby database to snapshot standby database at 11AM , Can I flashback snapshot standby database to 6 AM and do some works on it (DML operations) then converting the snapshot standby database into physical standby database ?
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Mar 14, 2012
I want to get the execute plan of a sql in standby database(read only),but failed,how can i do?
SQL> explain plan for select count(1) from hxl.tb_objects;
explain plan for select count(1) from hxl.tb_objects
*
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 2
ORA-16000: database open for read-only access
SQL> select count(1) from hxl.tb_objects;
COUNT(1)
----------
22238018
SQL> select open_mode from v$database;
OPEN_MODE
----------
READ ONLY
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Mar 10, 2010
I have two node rac running on SAN with ASM , i want to configure a single instance standby database for this.
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Jul 8, 2011
To have physical standby database, the hardware and software versions should be same, including patch sets?
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Sep 17, 2012
DB1 <Primary> - Production
DB2 <Physial Standby> - DR
I will need to startup my DB2 in DR segment for testing.If i perform the below, will it affect my Production DB? I need it to be up and running as well.
DR:
recover managed standby database cancel;
shutdown immediate;
startup nomount;
alter database mount standby database;
recover standby database until cancel;
alter database activate standby database;
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Sep 7, 2012
Oracle RDBMS 11.2.0.2 on RHEL 5.6.
I need to drop standby database completeley and rebuilt physical standby for the same database. We identified there are lot of inconsistencies between primary and standby. How do i need to remove the standby? And what is the best procedure?
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Dec 7, 2010
I was able to create the standby database on different server with the same name for the primary and standby database but I want to know that can I create a standby database with different database name than that of the primary database server.
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Dec 21, 2012
creating the standby database from Active database using RMAN and getting the below issue after i executed the duplicate command.
Version of Database:11g(11.2.0.1.0)
Operating System:Linux 5
Error:
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 12/21/2012 17:26:52
RMAN-03015: error occurred in stored script Memory Script
RMAN-04006: error from auxiliary database: ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
[code]....
provide any work arounds to proceed further in creating the standby database.
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Jan 30, 2013
I have installed oracle 11g standard edition one and created both primary and standby database. now i want to know how to switch(convert) primary database to standby database.
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Jan 16, 2013
i have configured physical standby in my local system, to check logshipping i created a table at primary db, wen i tried to check in standby, it says table does not exist..below are primary & standby alert entries..
Primary alert log
Fatal NI connect error 12514, connecting to:
(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.0.98)(PORT=1522))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=STAND)(SERVER=dedicat ed)(CID=(PROGRAM=d:oracle11gappadministratorproduct11.1.0db_1inORACLE.EXE)(HOST=A960M)(USER=SYSTEM))(SERVER=dedicated)))
VERSION INFORMATION:
TNS for 64-bit Windows: Version 11.1.0.6.0 - Production
[code]....
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Jan 16, 2013
I configured dataguard in my local system.
1) scn differs wrt primary in standby (i checked, 1day difference), how to make scn same?
2)i created a table in primary, its not refelecting in standby, (below i ve pasted alertlog entries)
ORA-27041: unable to open file
OSD-04002: unable to open file
O/S-Error: (OS 2) The system cannot find the file specified.
Errors in file d:oracle11gappadministratordiag
dbmsstandstand racestand_dbw0_6916.trc:
ORA-01157: cannot identify/lock data file 2 - see DBWR trace file
ORA-01110: data file 2: 'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSAUX01.DBF'
[code]....
3)wen i try to open standby database in read only mode gives below error..
ERROR at line 1:
ORA-16004: backup database requires recovery
ORA-01157: cannot identify/lock data file 1 - see DBWR trace file
ORA-01110: data file 1:
'D:ORACLE11GAPPADMINISTRATORORADATASTANDSYSTEM01.DBF'
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Apr 19, 2011
During data guard configuration i have receive an error while connecting to stanby database from primary database rman prompt.
rman target sys/srk786@orcli
Recovery Manager: Release 10.2.0.1.0 - Production on Tue Apr 19 09:59:26 2011
Copyright (c) 1982, 2005, Oracle. All rights reserved.
connected to target database: ORCLI (DBID=3754068166)
RMAN> connect auxiliary sys/srk786@stnd
[code]....
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Feb 2, 2013
I was using physical standby but my primary database had had some HW issue.So I had activated standby database to handle production.During 3 months, standby database was our live database and our old primary was unavailable.Now HW issue on primary has been fixed.And I want to set again my old configuration : means set primary and standby db.
I'm trying this :
1) check the SCN on old primary
2) Rman incremantal backup from scn
3) on primary db : catalog
4) on primary db : recover database noredo
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Apr 4, 2012
how to create the standby database on the same machine. os-window xp 2000(32 bit window) oracle 10g 10.2.0.1.0.
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Nov 23, 2011
I have set up a single instance standbys for rac databases. Now, I need to offload the backups from the primary on to the standbys.
1. cancel managed recovery
2. connect to target(standby) and catalog and backup the standby
3. put standby in managed recovery mode.
I think following these steps, I can restore primary(?). Now, My question is, how can I use these standby backups to clone/refresh databases? I tried it by connecting to target(primary), catalog and auxiliary but rman is using the primary backups instead of standby's to refresh the auxiliary database.
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Mar 31, 2011
i have done oracle data guard between two databases (database A is the primary) and (database B is the standby), and it was working fine for two weeks, then the network admin did some changes on the firewall on standby side, which made the primary database can not write on standby redo log , so archives was generated on primary and do not generated on standby by, now we solve the firewall probelm and new archives generated on primary is generated on atandby too, but now i have a gap in archives on standby database and standby database now is not synchronized with primary database, and data changes happen on primary is not reflected on standby, also archives that were generated on primary and did not generated on standby during the problem time is not registered in V$ARCHIVED_LOG neither on primary database nor on standby database
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Apr 30, 2012
I have a primary and standby DB using data guard 10.2.0.3.I want to upgrade oracle to 11G.I know that primary and standby should have same version even if data guard will not work again.I want to know what is the steps by steps action to properly upgrade both DB : primary and Standby.
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Jul 25, 2011
I am trying to create the Standby database using RMAN.
I have first created an auxiliary instance followed by the password file for the instance and the registering it it listener.
Below are the parameters of the pfile of the standby database and followed by the command issued at the RMAN prompt.
PFILE parameters [STANDBY]
orcl.__db_cache_size=293601280
orcl.__java_pool_size=8388608
orcl.__large_pool_size=8388608
orcl.__oracle_base='F:appdsharma'#ORACLE_BASE set from environment
[code]....
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Oct 19, 2011
How to create a standby database without rman and with the rman..?
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May 9, 2013
I have Oracle database on Oracle 10g R2 with physical as well as logical standby database.
1) Is is necessary to take Physical standby database backup?
2) If 1) yes then Which RMAN backup is preferred?with catalog or default?How to take backup as different location?
3)how to Restore that backup?How to ensure backup is valid?
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Sep 5, 2012
I have created a physical standby database and in it the logs are not getting applied.following is an extract of the standby alert log
Wed Sep 05 07:53:59 2012
Media Recovery Log /u01/oracle/oradata/ABC/archives/1_37638_765704228.arc
Error opening /u01/oracle/oradata/ABC/archives/1_37638_765704228.arc
Attempting refetch
Media Recovery Waiting for thread 1 sequence 37638
Fetching gap sequence in thread 1, gap sequence 37638-37643
Wed Sep 05 07:53:59 2012
RFS[46]: Assigned to RFS process 3081
RFS[46]: Allowing overwrite of partial archivelog for thread 1 sequence 37638
RFS[46]: Opened log for thread 1 sequence *37638* dbid 1723205832 branch 765704228
Wed Sep 05 07:55:34 2012
RFS[42]: Possible network disconnect with primary database
However, the archived files are getting copied to the standby server.I tried registering and recovering the logs but it also failed..Follows some of the information,
Primary
Oralce 11R2 EE
SQL> select max(sequence#) from v$log where archived='YES';
MAX(SEQUENCE#)
--------------
37668
[code]...
troubleshoot this and get the standby in sync.
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Jul 17, 2012
step by step procedure to configure physical standby database.....
i have to create on windows not in linux...so simple step by step procedure,once configured it should be up and running;
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Feb 21, 2013
I am using data guard and a physical standby database.How to assign backups on physical standby database to reduce the load on Primary database.
environment: windows
Database version:11.2.0.1.0
What are the pro and cons on assigning RMAN backups jobs to physical standby database?
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Jan 25, 2013
create another standby database on a new server.
I'm running Oracle 11.2 EE on Solaris 10.
We already have one standby database, but now, I want to create another standby database on another server, which ultimately I will make primary and then replace and destroy our current primary/standby databases.
Also, just for the heck of it, I tried to look in our DB Console, and the "Add standby database" is grey'd out.
Is this because I am only using DB Console, and not Grid?But if that were the case, why would the option even be in DB Console, or perhaps is there a lmiitation to the number of standby databases you can manage with DB Console?
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Dec 9, 2010
I successfully created the standby database and the archive logs were properly moving on both the primary and the standby databases. For the proper transfer of the archive logs on the STANDBY database I used "FAL_CLIENT AND FAL_SERVER" in the pfile of the primary database specifying the location of the primary and the Standby respectively.
When I removed both the parameters from the pfile of the primary database still there was the transfer of the archive logs however there should not be "If I am not wrong" as I have removed both the parameters.
why there is still the transfer of the archive logs on the standby database.
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Oct 10, 2013
we have two primary databases (Oracle release 9.2.0.8, HP-UX 11.31) installed on the same server. The corresponding standby-databases (Oracle release 9.2.0.8, HP-UX 11.31)are configured on one server, too.It happens once in a while that the server of the standby-databases struggles and performs a shutdown. The primary- and standby-databases are configured with Data Guard. If the server of the standy-databases is not reachable anymore that should not really cause any problems,meaning that both primary databases can be used as usual. One of our primary database behaves like this: the applications can connect to the database and work like as expected. The other primary database behaves different: the applications can't connect anymore. But the database is still up and running. When looking at the alert.log file the following messages can be found:
Fri Oct 4 03:19:51 2013ARC1: Evaluating archive log 3 thread 1 sequence 335372ARC1: Unable to archive log 3 thread 1 sequence 335372 Log actively being archived by another processFri Oct 4 03:20:51 2013ARC1: Evaluating archive log 3 thread 1 sequence 335372ARC1: Unable to archive log 3 thread 1 sequence 335372 Log actively being archived by another processFri Oct 4 03:21:51 2013ARC1: Evaluating archive log 3 thread 1 sequence 335372ARC1: Unable to archive log 3 thread 1 sequence 335372 Log actively being archived by another process Fri Oct 4 03:22:51 2013ARC1: Evaluating archive log 3 thread 1 sequence 335372ARC1: Unable to archive log 3 thread 1 sequence 335372 Log actively being archived by another processFri Oct 4 03:23:51 2013ARC1: Evaluating archive log 3 thread 1 sequence 335372ARC1: Unable to archive log 3 thread 1 sequence 335372 Log actively being archived by another processFri Oct 4 03:24:51 2013ARC1: Evaluating archive log 3 thread 1 sequence 335372ARC1: Unable to archive log 3 thread 1 sequence 335372
Log actively being archived by another process Trying to connect to the database is not possible - the database seems to be busy with something... We have two archiver processes for each primary database. One process of the primary database which can't be reached anymore seems to hang. Executing the command SQL> alter system archive log all;seems to run forever. Instead of shutting down ands starting the instance killing one of the archiver-processes solves the issue. Maybe some of you have made the same experiences? I do not understand why the one database doesn't have any issues (which is expected behaviour) but the other database is not reachable anymore due to some issue with the archiving process.
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