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

Similar Messages

Data guard difference in primary and standby OS.

Dear All,
We are planning to setup a data guard in our landscape. But my question what are the prerequisites should be consider before getting in to that.
Like my environment -
1. The primary database is running with Red hat Linux 5 - IBM 64 bit and the standby database is Redhat Linux 2.1 IBM 32 bit system.
2. The primary database is running with Red hat Linux 5 - IBM 64 bit with oracle 8.1.7.4 and the standby database is
Linux 2.1 IBM 32 bit system with oracle 10g.
Is the above thing is possible? or we should maintain the same OS / DB combination in the data guard setup.
I am following the below link.
http://download-west.oracle.com/docs/cd/B19306_01/server.102/b14239/standby.htm#i72053
If anyone have thoughts on this please do advice me.
Regards
Vijay

Please explain to us what exactly you want to do with the standby database?
According to note 105047 - Support for Oracle functions in the SAP environment
12. Data Guard
You can use "Physical Standby", but Oracle provides support (not SAP).
You cannot use "Logical Standby"
So in short, no a data guard configuration with Red hat Linux 5 - IBM 64 bit with oracle 8.1.7.4 to Linux 2.1 IBM 32 bit system with oracle 10g is NOT possible.
Regards, Michael

Logfile groups for Primary and Standby

Hi,
Oracle documents say that the size of Log files should be the same for primary and Standby. Presently it is not the case. I have logfile 100M for Primary (PROD) and 50M for Standby. To change them I should add new groups with file of 100M to standby. And then drop the small logs(50M). in this case the group number would not be the same. Would it be a problem ? Any other solution ? Thank you.

.Oracle documents say that the size of Log files should be the same for primary and Standby. It is only a recommendation, but, not mandatory. However, a messaage will be written to the standby alertlog file when standby database log file size is smillar than its primary database log file size.
in this case the group number would not be the same. Would it be a problem It won't be a problem.
Jaffar

Steps for Data Guard with one primary and 2 standby

Hi,
Database :10.2.0.4, 11.2.0.1
Os: Windows , Unix
A ----------------> Primary database
B ----------------> Standby Database 1
C ----------------> Standby Database 2
I want to configure *2 standby* databases for single primary database.
Lets take, A ,B and C are my machines.My data guard configuration will be like,*archive logs will be moving* from A to B and A to C.
If i do any switchover in between A and B , now B is primary and remaining A and C are standby databases.At this stage also , archive logs should move from B to A and B to C. Also, same should happen from C to A and C to B,If i do switchover in between B and C.If everything is fine , then i will do switchback to main Primary database(A).
How do i have to mention PFILE in all machines ,the parameters like
LOG_ARCHIVE_DEST_1=LOCATION=<PATH> -- LOCAL ARCHIVE PATH
LOG_ARCHIVE_DEST_2=SERVICE=
LOG_ARCHIVE_DEST_3=SERVICE=
FAL_SERVER=
FAL_CLIENT=
STANDBY_FILE_MANAGEMENT=
In my tnsnames.ora , primary,standby1 and standby2 are my service entries and these are same in all of my machines.
Please suggest me , how do i can configure my pfiles in all machines ?.
Thanks,
Sunand

Not yet, but now you have me interested.
Please consider Flashback.
I still have to test but here's my take:
PRIMARY SETTINGS
*.FAL_SERVER=STANDBY
*.FAL_CLIENT=PRIMARY
*.STANDBY_FILE_MANAGEMENT=AUTO
*.DB_UNIQUE_NAME=PRIMARY
*.LOG_FILE_NAME_CONVERT='STANDBY','PRIMARY'
*.log_archive_dest_1='LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=PRIMARY'
*.log_archive_dest_2='SERVICE=STANDBY LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=STANDBY'
*.log_archive_dest_3='SERVICE=STANDBY2 LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=STANDBY2'
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=ENABLE
*.LOG_ARCHIVE_DEST_STATE_3=ENABLE
*.LOG_ARCHIVE_MAX_PROCESSES=30
STANDBY 1 SETTINGS
*.FAL_SERVER=PRIMARY
*.FAL_CLIENT=STANDBY
*.STANDBY_FILE_MANAGEMENT=AUTO
*.DB_UNIQUE_NAME=STANDBY
*.LOG_FILE_NAME_CONVERT='PRIMARY','STANDBY'
*.log_archive_dest_1=LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=STANDBY'
*.log_archive_dest_2='SERVICE=PRIMARY LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=PRIMARY'
*.log_archive_dest_3='SERVICE=STANDBY2 LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=STANDBY2'
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=DEFER
*.LOG_ARCHIVE_DEST_STATE_3=DEFER
*.LOG_ARCHIVE_MAX_PROCESSES=30
STANDBY2 SETTINGS
*.FAL_SERVER=PRIMARY
*.FAL_CLIENT=STANDBY2
*.STANDBY_FILE_MANAGEMENT=AUTO
*.DB_UNIQUE_NAME=STANDBY2
*.LOG_FILE_NAME_CONVERT='PRIMARY','STANDBY2'
*.log_archive_dest_1=LOCATION=USE_DB_RECOVERY_FILE_DEST VALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=STANDBY2'
*.log_archive_dest_2='SERVICE=STANDBY LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=STANDBY'
*.log_archive_dest_3='SERVICE=PRIMARY LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=PRIMARY'
*.LOG_ARCHIVE_DEST_STATE_1=ENABLE
*.LOG_ARCHIVE_DEST_STATE_2=DEFER
*.LOG_ARCHIVE_DEST_STATE_3=DEFER
*.LOG_ARCHIVE_MAX_PROCESSES=30
Edited by: mseberg on Nov 29, 2010 9:39 AM
The first test slapped me. Looking at 409013.1 Cascaded Standby Databases
Edited by: mseberg on Nov 29, 2010 12:49 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.

Query on Changing the IP address for Primary and Standby.

Dear All,
I have to change the IP address for my Primary system. It is in windows environment with Oracle failsafe.
i am using the dataguard for switchover process. I changed the IP address in all the files like listener and TNS names and after that i mounted the database and checked the dataguard configuration.
DGMGRL> show configuration giving success. my problem is when i executed the show database verbose primary_database. it is showing the old IP address in static connect Identifier.
how to change the IP in static connect Identifier? i updated all the files properly with new IP, but still facing this. will it affect any thing during switchover?
Thanks.

Hello;
The simple solution is remove broker and set it up again.
How to Safely Remove a Data Guard Broker Configuration (Doc ID 261336.1)
Best Regards
mseberg

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

10.2.0.4 to 11.2.0.3 Linux 64bit new hardware for primary and standby

Hi
we have 10.2.0.4 on Redhat 64bit
we need to upgrade to 11.2.0.3 new hardware 64 bit
we can afford 12 hours downtime , 600G DB , the DB have a physical standby
my steps are:-
1- leave the primary 10R2 running
2- restore a backup to the new hardware and upgrade it to 11R2 , make the new 11gR2 a standby for the 10g primary
3- start my outage , shutdown the primary (or swichover to the 11g standby)
4- copy the archived logs manually(if necessary) and apply it to the new 11gR2
5-end my outage and connect my customer to the new 11gR2 on the new hardware
6-create a new 11g standby from a backup of the new 11g primary
Thanks

Hello;
A hole in your plan does not jump out at me. But I will give you another idea as food for thought
1. Stop apply and shutdown the current standby.
2. Upgrade the current primary to 11gr2
3. Duplicate ( active ) the primary to the new server ( might create a lock user script so only SYS and SYSTEM can connect )
4. Unlock accounts and end outage
5. create a new 11g standby using RMAN duplicate
Yesterday I moved a 100GB database to another server on another SAN can post some details if you have interest.
If I did this I would upgrade first. I used SQL to create the SCP scripts
Will post example. ( shown ) The I replace server_name: or change the SQL to the correct one.
set heading off
set feedback off
set pagesize 80
set linesize 120
select 'scp '||a.name ||' server_name:' || a.name as newname from v$datafile a;
--- need way bigger linesize here I used 400
select 'scp '||a.name ||' server_name:' || a.name as newname from v$controlfile a;
select 'scp '||a.member ||' server_name:' || a.member as newname from v$logfile a;Personally I like the upgrade before the move because you can test separately and it gives all the extra RMAN options. But there's always more than one way to do something like this.
The SCP move take a little longer, but since you move the database cold it just starts up without worrying about a backup.
I generally use a checklist for something like this. I can post my move checklist from yesterday if you want.
Best Regard
mseberg
Edited by: mseberg on Aug 12, 2012 8:31 AM

Veritas Hardware Cluster and Oracle Data Guard

Hi,
Actually we use Veritas Cluster Server for our Database Configuration. So we have a hardware standby cluster. In case of a failure the VCS does a failover, as you know ;-)
But now we are planning to use DataGuard for having a logical standby database for reporting cases. I just read something about a VERITAS CLUSTER SERVER AGENT for DataGuard.
What do I have to do (is there a possibility without using the Veritas Agent) for having a standby failover solution with Veritas and also a DataGuard Configuration.
What is going to happen if the Cluster does a failover? Will the Data Guard configuration be alive or is it going to break?
Please give me some advice. Maybe you have some links for articles that handle this topic.
Thank you very much in advance,
Henrik Ruenger

In terms of feasibility, yes, you can definitely have a database running on a Veritas Cluster Server and (at the same time) a Data Guard physical standby database.
If you are mentioning "VERITAS CLUSTER SERVER AGENT for DataGuard" by Symantec, I don't know the product in details.
What I can say is that you are definitely able to monitor and administer an Oracle Data Guard configuration by using just products that come with the Oracle licence.
In case of a failover, as long as your Oracle Net setup is resilient to the failover, Data Guard is as well. So, the short answer is: no it is not going to break.
I have setup this architecture several times with no problem.
Of course this is just high level.
Please let me know if you need more high level info.
Thanks and regards,
Corrado

Display Data Guard Configuration

Hi All,
We have two Windows 2008 VMs with Oracle 11G configured as primary and standby.
This configuration has been defined by a partner who is no longer working for us.
We have broken the correct application of the redo log on the standby when we have not correctly restored some snapshots on those two VMs.
I would like to create a new Oracle server that will become the new standby. For that, I need too :
- Display the full dataguard configuration to reproduce it on the new server
- Stop (delete ?) the configuration on the primary server.
We also have the current problem that RMAN refuses to delete old archivelog since they have not been applied to the standby.
Thanks for any help about those subjets,
Eric FRIGOT

999188 wrote:
Hi All,
We have two Windows 2008 VMs with Oracle 11G configured as primary and standby.
This configuration has been defined by a partner who is no longer working for us.
We have broken the correct application of the redo log on the standby when we have not correctly restored some snapshots on those two VMs.
I would like to create a new Oracle server that will become the new standby. For that, I need too :
- Display the full dataguard configuration to reproduce it on the new server
- Stop (delete ?) the configuration on the primary server.
We also have the current problem that RMAN refuses to delete old archivelog since they have not been applied to the standby.
Thanks for any help about those subjets,
Eric FRIGOTHi,
Welcome to OTN Forums!
Then, you must restore same time snapshots both machines.
If not same time snapshots, then
1. Restore primary server snapshot.
2. Create a VM for standby again.
3. Safety remove DG configuration from Primary server.
4. Create new standby and DG configuration again.
P.S Check this video : http://www.mahir-quluzade.com/2012/01/overview-data-guard-configuration.html
Regards
Mahir M. Quluzade

How to configure Enterprise Manager Database Control (EMDC) to make it work on 2 servers working (primary and standby) under DG rules

Hello everybody i use Oracle Database EE 11.2.0.4 with DG.
In those cases i need to get Enterprise Manager Database Control running against DB with no RAC and no DG i perform the following steps:
I Logon SQLPLUS as user SYS or SYSTEM, and drop the sysman account and management objects:
DECLARE
CURSOR c1 IS
SELECT owner, synonym_name name
FROM dba_synonyms
WHERE table_owner = 'SYSMAN';
BEGIN
FOR r1 IN c1 LOOP
IF r1.owner = 'PUBLIC' THEN
EXECUTE IMMEDIATE 'DROP PUBLIC SYNONYM '||r1.name;
ELSE
EXECUTE IMMEDIATE 'DROP SYNONYM '||r1.owner||'.'||r1.name;
END IF;
END LOOP;
END;
DROP USER mgmt_view CASCADE;
DROP ROLE mgmt_user;
DROP USER sysman CASCADE;
After that i run
emca -config dbcontrol db -repos recreate
But what should i do in cases i have 2 servers working (primary and standby) under DG rules?

Hi ,
It is not possible to monitor/administer a Logical or Physical Standby database, i.e Data Guard, using Enterprise Manager Database Control. This is primarily due to the fact that Database Control is designed to monitor 1 database and a Data Guard environment, by definition, includes more than 1 database.
If you attempt to run emca against a standby Database, you will get an error like (i.e. ORA-01219: database not open).
Database Control, can, of course, be used to monitor the current Primary database (with no ability to administer or monitor Data Guard related functionality). In such a case, when failover occurs Database Control must be reconfigured to run on the new Primary database using the commands detailed in Note 278100.1 How To Drop, Create And Recreate DB Control In A 10g Database, section C. Recreate/ReConfig DB Control, Option 2. Recreate the DB Control Configuration Files and Repository.
Enterprise Manager Grid Control or Cloud Control provides the functionality for viewing, monitoring, and administering primary and standby databases in a Data Guard configuration.
Reference: Is it Possible to Configure Database Control for a Logical or Physical Standby Database? (Doc ID 315116.1)
You can use EM 12c cloud control to monitor and manager Standby DB effectively
Ref to below link for details
Set Up and Manage Oracle Data Guard using Oracle Enterprise Manager Cloud Control 12c
Regards,
Rahul

Difference between oracle Data Guard and Replication

Hello Friends,
I would like to know the main difference between oracle replication and data guard. Theoretically both are same then where is the difference. Can replication or dataguard be configured in a single PC.
Thanks

Dataguard :
Oracle Data Guard is primarily for high availability, data protection, and disaster recovery. An Oracle Data Guard Standby instance provides transactionally consistent copies of the production database, in the event of an unplanned outage or instance maintenance the Data Guard Primary Role Standby Role can be switched so the Standby instance can provide Production services.
Replication :
Oracle Advanced Replication and Oracle Streams are Oracle's solution for replicating data and internal structures to remote databases. Advanced Replication is primarily trigger based where Streams is a rule/handler based replication process and considerably more efficient and less error prone than Advanced Replication
refer,
http://www.xtivia.com/database-management/replication/oracle-replication
Thanks

DNS / BIND - Can I configure primary and standby forwarders?

Hi all,
I have on Solaris 10 (x86) a DNS server (BIND 9.3.6-P1) that relies exclusively on two “forwarders”: 155.28.144.13and 154.23.134.32.
The configuration is as follow:
# cat /etc/named.conf
acl "CSClan" { 192.168.4.0/24; 192.168.7.0/24; }; //CSC internal LAN ip address range
options {
        directory "/var/named";
        forward only;
        forwarders {
                155.28.144.13;
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# cat /etc/resolv.conf
nameserver 127.0.0.1
When I check with snoop, I can see requests sometimes to one forwarder, sometimes to the other.
Is it possible to configure DNS to use primarily one forwarder?
Thanks in advance for your support.
Best Regards,
Rui Vilão

In 10g, dataguard started to support different binaries on primary and standby database servers with the same OS family. For example Microsoft Windows 64-bit on primary and Microsoft Windows 32-bit or Microsoft Windows 64-bit for AMD on standby database server. However with 11g, dataguard also supports different OS on primary and standby servers
Role Transitions for Data Guard Configurations Using Mixed Oracle Binaries [ID 414043.1]
Data Guard Support for Heterogeneous Primary and Physical Standbys in Same Data Guard Configuration [ID 413484.1]

Oracle Replication - Encrypted Data and Oracle Data Guard

We are working on a high availability architecture for one of our new projects. The preliminary architecture has Oracle 10g Release 2(10.2.0.2) production database (primary database) running on Solaris10 server for OLTP operations. And a production replicated database (standby database) is running on another node running on Solaris10 server for reporting, ETL data extractions etc. The plan is to implement Oracle data guard (DG) to replicate data between primary database and standby database (logical standby database). As a side note, there is going to be one to two minute time log for data synchronization between primary and standby databases.
We need to encrypt sensitive data (like SSN, Credit Card No. etc) in the primary production database. Initially we thought this can be achieved by using Oracle Transparent Data Encryption (TDE), this is a new encryption method Oracle came up with their 10g version. But the issue here is Oracle TDE doesnt support setting up the logical standby database (using Oracle data Guard) for reporting on the second node. I have confirmed with Oracle on this, so we are kind of stuck in the middle on this new requirement. So our next option is to look out for any third party vendors who can resolve this puzzle, and looking for your help for any suggestions.
· Do you know any vendor who can support both data encryption and data replication for Oracle databases?
· Do you know any vendor who can support just data encryption for Oracle databases?
(I am thinking if we can find a vendor, we would like to ask them if they have any technical issues working with Oracle data guard for data replication and use some kind of technique to decrypt the data on the standby/reporting database.)

You can always use the DBMS_CRYPTO or DBMS_OBFUSCATION_TOOLKIT to encrypt the data rather than using TDE. You may have to do some work on the key management side, though, but it shouldn't be too painful.
Justin

Using RAC One Node as a primary database in a Data Guard configuration

Is it possible to use RAC One Node as a primary database in a Data Guard configuration ?
Oracle doc states: "Supports Oracle Data Guard such that you can run physical or logical standby databases on it or even we can NOT run primary databases on it either if the primary databases have DG"
I guess it is not possible but can you folks confirm?
Alessio

Hmmm.... still unclear.
I've submitted a comment which the documentation team should pick up :
"+This sentence : "Supports Oracle Data Guard such that you can run physical or logical standby databases on it or even we can NOT run primary databases on it either if the primary databases have DG"+
+is not very clear.+
+I can understand it upto the words "on it" but the second part of the sentence, beginning with "or even we can NOT ..." seems mangled and unclear.+
+Can you clarify whether RAC One Node can be used as :+
+a. A Primary in a DataGuard configuration+
+b. A Standby in a DataGuard configuration ?+"
Hemant K Chitale

Oracle data guard configuration for primary and standby db_name

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