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

Similar Messages

Flashback Database on Data Guard setup

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

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

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 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

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 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 Q

For our new project we need zero data loss incase of disaster. I am thinking to use Data Guard between 2 remote data centers. I was going thru documentation and I have 1 Q:
In Maximum performance mode is it possible to have LGWR SYNC as a way to ship redo data?
If yes then wouldn't it be same as Maximum Availability?
If I use LGWR ASYNC , how much data loss can I expect?
Any help would be much appreciate
Thanks
Kanwal

You can check Oracle doc to fully understand the difference between LGWR SYNC Archival Processing
and LGWR ASYNC Archival Processing
http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/log_transport.htm#i1265730
The main difference is SYNC will not commit change on primary until transaction is received on standby. ASYNC will not wait for remote confirmation.
If your network connection between standby and primary is not reliable it will have huge impact on performance. So it depends on how remote your standby is.
On the primary database, the LGWR process submits the redo data to one or more network server (LNSn) processes, which then initiate the network I/O in parallel to multiple remote destinations. Transactions are not committed on the primary database until the redo data necessary to recover the transaction is received by all LGWR SYNC destinations.
When the LGWR and ASYNC attributes are specified, the log writer process writes to the local online redo log file, while the network server (LNSn) processes (one for each destination) asynchronously transmit the redo to remote destinations. The LGWR process continues processing the next request without waiting for the LNS network I/O to complete.

Data Guard setup with 11i apps

Hi,
We are configuring dataguard for our 11i apps its 10g database , i have some questions regarding dataguard.
as per metalink note : Business Continuity for Oracle Applications Release 11i, Database Releases 9i and 10g [ID 216212.1]
Step2)Configure Oracle Net communications to and from the standby.
As the ORACLE user on the production database server, in the <TNS_ADMIN> directory, create an include file with entries for the standby database and for the FAL (fetch archive logs) server for your tnsnames.ora configuration file. Check the last line of your tnsnames.ora file for the name of the ifile, and match it exactly (matching upper and lower case). The file name will have this format: <CONTEXT_NAME>_ifile.ora.
With one small change, this file can be used on the production database environment when it acts as a standby during a switchover to another server for planned maintenance – modifying the HOST name of the standby service definition to point to the correct location on switchover.
A sample <TNS_ADMIN>/<CONTEXT_NAME>_ifile.ora file, set up for primary site usage:
*I have not seen any <CONTEXT_NAME>ifile.ora ; file in $TNSADMIN directory, Then how do i configure FAL , Where do i need to configure FAL parameters .*

Hi,
As per metalink note :
See here.
As the ORACLE user on the Primary database server, in the <TNS_ADMIN> directory, create an include file with entries for the standby database and for the
FAL (fetch archive logs) server for your tnsnames.ora configuration file.
Could you explain me what does it mean...?
*Check the last line of your tnsnames.ora file for the name of the ifile, and match it exactly (matching upper and lower case). The file name will have this format: <CONTEXT_NAME>_ifile.ora.*
Here is
With one small change, this file can be used on the production database environment when it acts as a standby during a switchover to another server for planned maintenance – modifying the HOST name of the standby service definition to point to the correct location on switchover.
A sample <TNS_ >/<CONTEXT_NAME>_ifile.ora file, set up for primary site usage:

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.

Oracle 11G Direct SQL Load with Data Guard

Does SQL Loader in direct mode always bypass the writing of redo logs ?
If the database has force logging on, will SQL Loader in direct mode bypass the writing of redo logs ?
Is there a way to run SQL Loader in direct mode that will create redo logs that can be applied by Data Guard to the backup database ?

846797 wrote:
Does SQL Loader in direct mode always bypass the writing of redo logs ?
If the database has force logging on, will SQL Loader in direct mode bypass the writing of redo logs ?
Is there a way to run SQL Loader in direct mode that will create redo logs that can be applied by Data Guard to the backup database ?In case of data guard setup , redo logs will always be generated.

Data Guard: db_file_name_convert/log_file_name_convert when using ASM/OMF

All,
I have a call currently open with Oracle regarding the setting of the parameters db_file_name_convert and log_file_name_convert in a data guard environment. We use ASM / OMF for storage and file naming and my question is basically do these parameters have to be set. The documentation says they do where the file structure is different between PRIMARY and STANDBY.
I have successfully tested failover and switchover without these parameters. I have also added a new tablespace on the PRIMARY and watched it create a new OMF datafile on standby when the logs are switched.
I just can't see a reason for setting them when using ASM / OMF.
I'm hoping someone can enlighten me here because I'm getting nowhere whith support. The following is our Data Guard setup:
PRIMARY
DB_NAME=IBSLIVE
DB_UNIQUE_NAME=IBSLIVE
ASM Disk Groups:
+PRODDATA (Data Files, Control Files, Redo Logs)
+PRODFLASH (Archive Logs, Flashback Logs, RMAN backups)
+PRODLOGS (Multiplexed Control & Redo Logs)
STANDBY
DB_NAME=IBSLIVE
DB_UNIQUE_NAME=IBSDR
ASM Disk Groups:
+DRDATA (Data Files, Control Files, Redo Logs)
+DRFLASH (Archive Logs, Flashback Logs, RMAN backups)
+DRREDO (Multiplexed Control & Redo Logs)
Many Thanks,
Ian.

Ian,
I'm having similar thoughts.
I have created a new instance with files in asm under +datadisk/obosact (this is the smae name as primary)
I then modify the db_unique_name from obosact to obosactdr as is required for standby to work
When I recover (duplicate target database for standby; ) I find that the files are in datadisk/obosactdr not in the datadisk/obosact area
I found this reference http://www.oracle.com/technology/deploy/availability/pdf/MAA_WP_10g_RACPrimaryRACPhysicalStandby.pdf
4. Connect to the ASM instance on one standby host, and create a directory within the DATA disk group that has the same name as the DB_UNIQUE_NAME of the standby database. For example: SQL> ALTER DISKGROUP data ADD DIRECTORY '+DATA/BOSTON';
This step seems to indicate that the location of the files is determined by the db_unique_name not the db_file_name_convert paramenter
DId you ever resolve the issue?

Data Guard Setup

Similar Messages

Maybe you are looking for