Data guard setup for 2 node RAC primary to 2 node RAC standby

Hi All,
I am going to setup data guard for 2 node RAC primary to 2 node RAC standby on Oracle 10.2.0.4. in AIX5L.
Can you please provide the document on the above setup which is having all the steps (details).
Also, the documents on different scenarios like
1) If one node of standby goes down, how the redo logs will be applied. IS there any problem?
2) If both nodes of standby are failed, how to reciver them?
3) If one node of primary fails, is there any issue?
4) If two nodes of primary fails, is there any issue?
Thanks in advance,
Mahi

Have a look at the following location, you may find some similar documents:
http://www.oracle.com/technology/deploy/availability/htdocs/maa.htm
By
http://www.oraxperts.com

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Data Guard setup after resetlogs on Primary

Hello,
On our primary database we had to perform an incomplete recovery and afterwards had to perform the command "ALTER DATABASE OPEN RESETLOGS". The problem I have is that after switching the Logical and Physical Standby databases back on they are still looking for archive log number 16133 when the log sequences have been reset back to 1.
The error message in the alert log is ....
ORA-16069: Archive Log standby database activation identifier mismatch
So the question is do I need to re-create my Logical and Physical standby databases or is there another may around this?
Thanks.

It depends on the database version, and the configuration in the databases, if the database version is 9i, it's mandatory to re-create the standby database. If the version is 10g, and the flashback database is used, it is possible that automatically the database continue the redo application.

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Hello!
Win 2003 server - 64 bit
Oracle 10.2.0.4
As i have noticed Flashback Database is popular in Data Guard setups for the reinstate reason; you dont need to rebuild.
However, im looking at Flashback for 'flashback database' reasons. Some developers has asked for a method to rollback if an release has gone bad, so my questions is;
If i flashback database primary database, will standby also change due to redo log shipment?
Thank u!

After flashing primary database check CURRENT_SCN in Standby. If flashback scn is greater then current_scn, then do nothing. Otherwise, on standby:
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
FLASHBACK STANDBY DATABASE TO SCN "flashback_scn_number -1";
ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;

Data Guard setup with Clustered primary ?

Hi,
I am sure I am not in this unique requirement of setting up a Data Guard configuration where my primary database is clustered (for local server failure) and I am setting up the Data Guard (for the site level failure).
I could do the Data Guard setup without any problem where my primary and standby are on single individual servers (not clustered) but when I do the set up with primary database as clustered and do a local failover (not using Data Guard but using the veritas cluster) the DB Broker just stops recognizing the configuration.
I did come across a metalink note (BUG 4404952 ) which says DG Broker does not support Cold Failover Cluster.
Has anyone found any work around to it?
Has anyone tried using the above configuration in 10.2.0.4? Does it work in 10.2.0.4?
The Bug is dated 2007 so I am sure I am not the first one to encounter this issue.
Would really appreciate if someone can tell me what the workaround would be or guide me to any good link which would tell me the same.
Thanks a lot in anticipation.
Manoj Datar

I read somewhere that cold failover support in 11g is also ONLY for the oracle clusterware configuration.
Its really so hard to believe that there is NO ONE who wants to have a clustered primary (for local server failures) and a Data Guard (for the Site level failure or DR) as a combination in their HA environment.
I am still in the testing phase, What else could I be looking for in the solution if I need to achieve both these objectives (ie Local Server failures and Site level failures or DR)? I already have the Local server failure taken care by using the Veritas cluster so what do I need to include in the mix to achieve the site level failure?

Oracle11gR2 data guard setup

I am looking for a document on "Active data guard configuration and setup".
In past I have used the following doc.....
http://wiki.oracle.com/page/11GR2+Data+Guard+Setup+project
But now the web link isn't available anymore (The link automatically redirects to www.oracle.com). The document was basically a workshop on how to setup Oracle 11gR2 active data guard with fast-failover option. It was an excellent document and very informative. Any idea where I can find it?
If anyone could point me to the document or atleast let me know who the author is....that will be extremly helpful.
Thanks,
Sourav

Thanks for the reply! But no, that's not the one I was looking for.
The old URL "http://wiki.oracle.com/page/11GR2+Data+Guard+Setup+project" had step by step very detail directions on data guard setup starting from physical standby creation from scratch. Nor typical OBE style....... just step by step instructions. It was indeed a very popular document/workshop.
Since this web link was active just 2 months back, I was wondering if there would be an archived location or someone would be able to help me locate the doc. It's hard to believe that these very helpful docs are deleted overnight.
Thanks,
Sourav
Edited by: user11948852 on Aug 23, 2011 5:01 PM

Data Guard configuration for RAC database disappeared from Grid control

Primary Database Environment - Three node cluster
RAC Database 10.2.0.1.0
Linux Red Hat 4.0 2.6.9-22 64bit
ASM 10.2.0.1.0
Management Agent 10.2.0.2.0
Standby Database Environment - one Node database
Oracle Enterprise Edition 10.2.0.1.0 Single standby
Linux Red Hat 4.0 2.6.9-22 64bit
ASM 10.2.0.1.0
Management Agent 10.2.0.2.0
Grid Control 10.2.0.1.0 - Node separate from standby and cluster environments
Oracle 10.1.0.1.0
Grid Control 10.2.0.1.0
Red Hat 4.0 2.6.9-22 32bit
After adding a logical standby database through Grid Control for a RAC database, I noticed sometime later the Data Guard configuration disappeared from Grid Control. Not sure why but it is gone. I did notice that something went wrong with the standby creation but i did not get much feedback from Grid Control. The last thing I did was to view the configuration, see output below.
Initializing
Connected to instance qdcls0427:ELCDV3
Starting alert log monitor...
Updating Data Guard link on database homepage...
Data Protection Settings:
Protection mode : Maximum Performance
Log Transport Mode settings:
ELCDV.qdx.com: ARCH
ELXDV: ARCH
Checking standby redo log files.....OK
Checking Data Guard status
ELCDV.qdx.com : ORA-16809: multiple warnings detected for the database
ELXDV : Creation status unknown
Checking Inconsistent Properties
Checking agent status
ELCDV.qdx.com
qdcls0387.qdx.com ... OK
qdcls0388.qdx.com ... OK
qdcls0427.qdx.com ... OK
ELXDV ... WARNING: No credentials available for target ELXDV
Attempting agent ping ... OK
Switching log file 672.Done
WARNING: Skipping check for applied log on ELXDV : disabled
Processing completed.
Here are the steps followed to add the standby database in Grid Control
Maintenance tab
Setup and Manage Data Guard
Logged in as sys
Add standby database
Create a new logical standby database
Perform a live backup of the primary database
Specify backup directory for staging area
Specify standby database name and Oracle home location
Specify file location staging area on standby node
At the end am presented with a review of the selected options and then the standby database is created
Has any body come across a similar issue?
Thanks,

Any resolution on this?
I just created a Logical Standby database and I'm getting the same warning (WARNING: No credentials available for target ...) when I do a 'Verify Configuration' from the Data Guard page.
Everything else seems to be working fine. Logs are being applied, etc.
I can't figure out what credentials its looking for.

RAC + Data Guard setup

In high-level terms, if you are running a 2-node RAC and get asked to create a 2-node disaster recovery site, how would I go about doing that? (The cluster in the disaster recovery site has already been created and the Oracle 11.2.0.1 software installed).
I'm thinking generally that an RMAN clone of production to the secondary site would be an idea: but can that be done with both production nodes up? And is the best approach to clone to a single-instance and then add a second instance manually later on?
Any pointers, or tips for a 2-node data guard from a 2-node RAC setup would be appreciated, basically. I realise it's pretty vague, but I'm just scoping this out at the moment and need some general pointers.

Hi,
Step by Step RAC to RAC Dataguard.
<<http://www.oracledba.org/11gR2/dr/11gR2_dataguard_RAC_to_RAC.html>>
Regards,

Oracle data guard configuration for primary and standby db_name

I am working on configuring an active data guard for one primary DB and one standby DB. I have a few questions:
1. Can I use different db_name, db_unique_name and instance_name for primary and standby. For example: primary(db_name, db_unique_name and instance_name)=chicago. When I create standby DB with Rman backup and copy of pfile and control file from primary DB or use Grid control to create standby database. Oracle document or Grid control all keep standby db_name=chicago. Only make standby db_unique_name and instance_name=boston. Due to my application system condition, I want to make db_name=boston, not keep it as the same as primary=chicago. Is this valid configuration?
2. In primary datafiles, application system generate datafile name like this: hr_chicago_01.dbf, fn_chicago_01.dbf. When I move datafiles to standby server, if I plan to use db_name=boston for standby DB, can I rename datafiles as
hr_boston_01.dbf, fn_boston_01.dbf? In this way, datafile name match up with db_name. but I will create standby log group and members on primary and standby identically. If in future switching over, DB will not have problems.
3. If I don't use primary DB backup. Instead, I copy all datafiles, redo_log files (no control files) to standby. Then "alter database backup controlfile to trace" from promary and also " create pfile='/xxx/initSTANDBY.ora' from primary. Then modify init.ora and controlfile. Then run control.sql to bring standby DB up. After that, configure redo log shipping and apply with data guard or SQL. Is this a acceptable way to create physical standby DB?
Please advise your comments. Thanks in advance.

I want to make db_name=boston, not keep it as the same as primary=chicago. Is this valid configuration?NO. DB_NAME must be the same ("chicago") at both sites. The Standby will be using a different DB_UNIQUE_NAME (e.g. "boston") and can be using a different Instance name / SID (e.g. "boston").
can I rename datafiles Yes. The database file names can be changed.
If I don't use primary DB backup. Instead, I copy all datafiles, redo_log files (no control files) to standbyWhat is the difference between the first sentence (a backup of the primary) and the second sentence (a copy of the primary) ? A Copy is a backup.
Are you intending to differentiate between an RMAN Backup and a User-Managed (aka "scripted") backup ?
Normally, for DataGuard, tou can use non-RMAN methods to copy the database but there's no value add in this.
You'd still have to setup DataGuard ! (and I wonder if you'd have complications setting up Active DataGuard).
But remember that you MUST create the Standby controlfile from the Primary and copy it over to your Standby -- particularly as you are planning to use DataGuard. This is not created by 'alter database backup controlfile to trace' , but by 'ALTER DATABASE CREATE STANDBY CONTROLFILE AS 'filename''
Hemant K Chitale

Grid Control and Data Guard Setup

Hi,
I have 4 PCs on which I wish to test the following:
1. OEM Grid Control 10.2 - Console + Service + Agent
2. Data Guard feature with Broker
3. Standby Setup for a Primary Database.
I will create the Primary DB on one Linux PC.
Standby DB using Grid Control & DataGuard on second Linux PC.
The Third PC is also Linux but the fourth PC is Windows XP.
Please guide me in understanding the following:
1. On which PCs should I install OEM Grid Control 10.2 - Console + Service + Agent?
2. On which PC should I setup DB Broker?
Please assume that I will use Oracle 10.2 Softwares and Linux x86 version.
Regards

well why don't you go ahead and test?!
Test and see whether you want to put oms, console all one machine, or whether you want to separate out the componests (you'll need an agent on each box regardless). I have no idea what the specs of your machines are, so why don't read the documentation on Grid and dataguard, see what the recommended settings are and then plan what you want to do.
Bazza

Oracle9i Data Guard - Filtering for a Logical Standby DB?

Hello All
1) When using Oracle9i data guard with a logical standby database is it possible to "screen" the sql statements that are executed? For example if I don't want any "delete" commands to be replicated on the standby box can I filter them out?.
2) Are there any unlogged transactions that don't get "replicated"? Can I get a list of these commands/transactions?
Any insight would be greatly appreciated
Thanks in advance
...anik

I want to make db_name=boston, not keep it as the same as primary=chicago. Is this valid configuration?NO. DB_NAME must be the same ("chicago") at both sites. The Standby will be using a different DB_UNIQUE_NAME (e.g. "boston") and can be using a different Instance name / SID (e.g. "boston").
can I rename datafiles Yes. The database file names can be changed.
If I don't use primary DB backup. Instead, I copy all datafiles, redo_log files (no control files) to standbyWhat is the difference between the first sentence (a backup of the primary) and the second sentence (a copy of the primary) ? A Copy is a backup.
Are you intending to differentiate between an RMAN Backup and a User-Managed (aka "scripted") backup ?
Normally, for DataGuard, tou can use non-RMAN methods to copy the database but there's no value add in this.
You'd still have to setup DataGuard ! (and I wonder if you'd have complications setting up Active DataGuard).
But remember that you MUST create the Standby controlfile from the Primary and copy it over to your Standby -- particularly as you are planning to use DataGuard. This is not created by 'alter database backup controlfile to trace' , but by 'ALTER DATABASE CREATE STANDBY CONTROLFILE AS 'filename''
Hemant K Chitale

Data Guard Setup

I am trying to set up data guard 10g R2 on RHEL 5.
I was able to successfully set up one. What I did is i followed this blogger:
Data Guard Configuration Example - (Oracle 10g, Physical Standby) by Jeff Hunter, Sr. Database Administrator on http://www.idevelopment.info/
What I did is i installed RHEL 5 on 2 servers. Then I installed database software on both servers. Then on both servers, i used dbca to create database on each server. Am I correct? Since my data guard is working now as verified on testing. what i did is:
-install oracle software and create database on node 1
-install oracle software and create database on node 2
-transformed database on node 2 into physical standby database.
Is this also correct?
I am hearing that i can also create data guard (with physical standby database) using the setup:
- install oracle software and create database on node 1
-install oracle software only on node 2
-create physical standby database on node 2 using the database in node 1.
Any recommendations or am i doing correctly?

Ah, I may have explained incorrectly what I actually did .
What I did is,
- I created a database called test1 in node1 (general purposewith datafiles).
- Then on my node2, I created another database named test2 in node2 (custom databaseno datafiles).
- Node1 and Node2 has the same structures (except some paths which has .../test1/... and .../test2/...).
- Then I used RMAN to clone the database in node1 to node2.
These are my commands:
node2] rman target sys/oracle@test1 auxiliary sys/oracle@test2
RMAN> duplicate target database for standby;
So I believe what I did is also correct since I restored my test1 database in node1 into test2 database in node2. So I believe, my test2 database is an RMAN clone of my node1 database.
Edited by: 859640 on May 24, 2011 7:44 PM

New Data Guard Setup Required

Hi,
in my organization there is a requirement to setup a Physical Standby data guard for one of our 9i databases. Please find below for the hardware details and oracle version & etc..
Primary Setup
Server :
AIX Version 5.3
$ oslevel -r
5300-07
Database Verion
9.2.0.8
Standby Setup
Server :
Solaris 10 sparc (64-bit)
Database Version :
9.2.0.8
I would like know this can be achieved or not. I'm not very clear on the steps to follow.
Cheers
Kanchana.

No, ASM will be available from oracle 10g.
Regard
Asif Kabir
-- Hope you got the answer so close the thread as marking the post correct/helpful.

Data guard setup using 11g R2.

Hi,
It is possible to setup data guard between Amazon ec2 (primary db) and standby will be on local data center- (Non Amazon) using 11g R2.

Hi,
When I tried to create data guard between amazon ec2 instance and local server using 11g R2 64 bit on linux server I am getting the below mention error.I Need some pointers on this issue.
Thanks in advance
Starting backup at 08-JUN-12
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile file number=00005 name=/oracle/app/oradata/abs/abs.dbf
ORACLE error from target database:
ORA-03114: not connected to ORACLE
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
ORA-03114: not connected to ORACLE
RMAN-03002: failure of Duplicate Db command at 06/08/2012 19:01:22
RMAN-03015: error occurred in stored script Memory Script
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 06/08/2012 19:01:22
RMAN-10038: database session for channel ORA_DISK_1 terminated unexpectedly

Data guard related OS processes in Primary and Standby servers

Database version : 11.2.0.3
Operating System : RHEL 5.8
Type: Physical Standby
++++++++++++++++++++++++++++In a typical Linux server hosting a Physical standby DB, the data guard related OS processes that appear in ps output
are like below. One mrp for each standby DB.
ps -ef |grep mrp
oracle 9380     1   0   May 21 ?          57:33 ora_mrp0_STRYKER_DG
oracle 18874     1   0   May 23 ?          33:45 ora_mrp0_FLPSA
oracle 18992 18837   0 23:39:39 pts/3       0:00 grep mrpSimilarly ,In a typical Linux server hosting a Primary DB what are the data guard related OS processes that appear in ps output ? Will LNS process appear in ps output ? Any other processes ?

Similarly ,In a typical Linux server hosting a Primary DB what are the data guard related OS processes that appear in ps output ? Will LNS process appear in ps output ? Not exactly but it appears has different name, on your primary try below commands
SQL> select pid from v$managed_standby where process='LNS';
$ps -ef|grep <pid value>
hope this helps, on standby you can use same procedure to find the RFS OS process

Oracle 11i(11.5.0.2) Data guard setup

Hi,
Hi, I am currently doing a test for 11i(with10.2.0.3 db) with Data guard. Since I have only one test server. I have created the Primary,Standby and the application Tier on one server. After switching over to the standby and trying to run autconfig on the application tier, it fails with TNS-entry not found. I would like to know that if its mandatory that the Primary and Standby db should have the same listener port or not.
Thanks

Hi,
Hi, I am currently doing a test for 11i(with10.2.0.3 db) with Data guard. Since I have only one test server. I have created the Primary,Standby and the application Tier on one server. After switching over to the standby and trying to run autconfig on the application tier, it fails with TNS-entry not found. I would like to know that if its mandatory that the Primary and Standby db should have the same listener port or not. Yes u need to have same sid and port number as of prod.
Refer MOS tech note:
*Business Continuity for Oracle Applications Release 11i, Database Releases 9i and 10g [ID 216212.1]*
thanks,
X A H E E R

Data guard setup for 2 node RAC primary to 2 node RAC standby

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