Active Data Guard in different database versions (11.2.0.3 and 11.2.0.4)

In case of Active Data Guard can i run different database versions (11.2.0.3 and 11.2.0.4) at Primary and DR for production environment ? And will having RAC in environment make any difference?

Hi,
>>In case of Active Data Guard can i run different database versions (11.2.0.3 and 11.2.0.4) at Primary and DR for production environment ?
As per normal Data Guard requirement, Oracle 11.2 does support flexibility where Primary and Standby may have different hard wares such as CPU architecture and OS etc. but the Oracle RDBMS software version must be the same. Having said so does not mean it will not support it. Beginning with 11.1.07, a physical standby database can be used to execute a rolling database upgrade to a new Oracle Patch Set or database release by using the transient logical rolling database upgrade process. It means you can have with different database version but for how long, you need to check above documents.. For complete information you should read this note:
Data Guard Support for Heterogeneous Primary and Physical Standbys in Same Data Guard Configuration (Doc ID 413484.1) &
http://www.oracle.com/technetwork/database/features/availability/maa-wp-11g-transientlogicalrollingu-1-131927.pdf
2) >> And will having RAC in environment make any difference?
NO. You can find answer at - https://docs.oracle.com/cd/E11882_01/server.112/e41134/standby.htm#SBYDB4716
**The primary database can be a single instance database or an Oracle Real Application Clusters (Oracle RAC) database. The standby databases can be single instance databases or Oracle RAC databases.
HTH,
Pradeep

Similar Messages

DB link problem between active Data Guard and report application database

My database version in 11.2.0.2.0 and OS is Oracle Solaris 10 9/10.
I am facing a problem in my Active data guard Database for reporting purpose. Active Data guard information is as below.
SQL> select name, database_role, open_mode from v$database;
NAME DATABASE_ROLE OPEN_MODE
ORCL PHYSICAL STANDBY READ ONLY WITH APPLY
Problem detail is below
I have created a db link (Name: DATADB_LINK) between active data guard and report application database for reporting purpose.
SQL> create database link DATADB_LINK connect to HR identified by hr using 'DRFUNPD';
Database link created.
But when I run a query using db link from my report application database I got this below error.
ORA-01555: snapshot too old: rollback segment number 10 with name "_SYSSMU10_4261549777$" too small
ORA-02063: preceding line from DATADB_LINK
Then I check Active Data Guard database alart log file and get below error
ORA-01555 caused by SQL statement below (SQL ID: 11yj3pucjguc8, Query Duration=1 sec, SCN: 0x0000.07c708c3):SELECT "A2"."BUSINESS_TRANSACTION_REFERENCE","A2"."BUSINESS_TRANSACTION_CODE",MAX(CASE "A1"."TRANS_DATA_KEY" WHEN 'feature' THEN "A1"."TRANS_DATA_VALUE" END ),MAX(CASE "A1"."TRANS_DATA_KEY" WHEN 'otherFeature' THEN "A1"."TRANS_DATA_VALUE" END )
But the interesting point if I run the report query directly in Active Data Guard database, I never got error.
So is it a problem of DB link between active Data Guard and other database?

Fazlul Kabir Mahfuz wrote:
My database version in 11.2.0.2.0 and OS is Oracle Solaris 10 9/10.
I am facing a problem in my Active data guard Database for reporting purpose. Active Data guard information is as below.
SQL> select name, database_role, open_mode from v$database;
NAME DATABASE_ROLE OPEN_MODE
ORCL PHYSICAL STANDBY READ ONLY WITH APPLY
Problem detail is below
I have created a db link (Name: DATADB_LINK) between active data guard and report application database for reporting purpose.
SQL> create database link DATADB_LINK connect to HR identified by hr using 'DRFUNPD';
Database link created.
But when I run a query using db link from my report application database I got this below error.
ORA-01555: snapshot too old: rollback segment number 10 with name "_SYSSMU10_4261549777$" too small
ORA-02063: preceding line from DATADB_LINK
Then I check Active Data Guard database alart log file and get below error
ORA-01555 caused by SQL statement below (SQL ID: 11yj3pucjguc8, Query Duration=1 sec, SCN: 0x0000.07c708c3):SELECT "A2"."BUSINESS_TRANSACTION_REFERENCE","A2"."BUSINESS_TRANSACTION_CODE",MAX(CASE "A1"."TRANS_DATA_KEY" WHEN 'feature' THEN "A1"."TRANS_DATA_VALUE" END ),MAX(CASE "A1"."TRANS_DATA_KEY" WHEN 'otherFeature' THEN "A1"."TRANS_DATA_VALUE" END )
But the interesting point if I run the report query directly in Active Data Guard database, I never got error.
So is it a problem of DB link between active Data Guard and other database?
Check this note which is applicable for your environment
*ORA-01555 on Active Data Guard Standby Database [ID 1273808.1]*
also
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:8908307196113

Active data guard standby database

Hello,
we have to choose which technology to use for maintain Oracle backup center synchronized with main center. This backup center should be read only, and data generated in main should be replicated into backup. So I would like to use Active Data Guard, but I have a possible issue with reading in backup center, because reading is not just select, but filling(inserting data) some temporary tables (from client side, and from procedures in database). Will Standby database in backup center allow this if Active Data Guard is used. We would go with Oracle 11gR2.
Also other suggestions on replication technologies (I know there are RAC, ADG, Oracle Streams, Golden Gate), or any document which would help us decide which of these technologies would suit our needs the best.
Thank You.

Hi,
user12121832 wrote:
we have to choose which technology to use for maintain Oracle backup center synchronized with main center. This backup center should be read only, and data generated in main should be replicated into backup. So I would like to use Active Data Guard, but I have a possible issue with reading in backup center, because reading is not just select, but filling(inserting data) some temporary tables (from client side, and from procedures in database). Will Standby database in backup center allow this if Active Data Guard is used. We would go with Oracle 11gR2. You can use Standby Database to make yours Backup.
In 11.1 or later you can use feature "Snapshot Standby Databases" if this write on database is temporary (i.e you will not use the new data) and at backup time you not need use Snapshot Standby Database feature.
A snapshot standby database is a physical standby database that you temporarily convert into an updatable standby database. You can use snapshot standby databases as clones or test databases to validate new functionality and new releases, and when finished you then convert the database back into a physical standby. While running in the snapshot standby database role, it continues to receive and queue redo data so that data protection and the RPO are not sacrificed.
A snapshot standby database has the following characteristics:
* A snapshot standby database cannot be the target of a switchover or failover. A snapshot standby database must first be converted back into a physical standby database before performing a role transition to it.
* A snapshot standby database cannot be the only standby database in a Maximum Protection Data Guard configuration.
Note:
Flashback Database is used to convert a snapshot standby database back into a physical standby database. Any operation that cannot be reversed using Flashback Database technology will prevent a snapshot standby from being converted back to a physical standby.
http://docs.oracle.com/cd/E11882_01/server.112/e17157/unplanned.htm#HAOVW11832
Also other suggestions on replication technologies (I know there are RAC, ADG, Oracle Streams, Golden Gate), or any document which would help us decide which of these technologies would suit our needs the best.If you need "standby" database opened in read-write all time the best option is to use Golden Gate.
Regards,
Levi Pereira

Active Data Guard VS Golden Gate

Hi Experts,
I am looking for High Availability and Disaster Recovery architecture for my data layer i.e. Oracle Database 11g R2
We have two physical locations and the distance between two sites is around 20 miles.
Site 1:
We already implemented RAC setup with two node in site 1.
Site 2:
We are going to implement standalone database. (Not RAC)
My requirements:
1. Both databases at Site 1 & Site 2 should be replica of each other.
2. Both databases should be in sync always.
3. Site 1 is active and Site 2 is stand by.
4. Client applications on Site 1 & Site 2 should always talk to RAC database on Site1.
5.. If RAC at site 1 goes down completely, then ONLY client apps should connect to Site2 database without human intervention.
How can acheive my requirement ? I was doing some research & found two solutions. 1. Active Data Guard 2. Golden Gate.
Questions:
1. Do Data Guard and Golden Gate offers same features ?
2. Which products offers solutions to all my requirements or Do I need to use both ?
3. If Data Guard and Golden Gate are different from each other then What is the difference between them and what are the overlapping features among them ?
Thanks

Hi;
Both tool are HA tool. Please see below link
Thanks for the question regarding "Data guard vs Streams vs GoldenGate", version 11.2.0.2
http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:3349335100346299316
Golden Gate versus Data Guard for replication
Golden Gate versus Data Guard for replication
If you have still question please update thread
Regard
Helios

Need suggestion on Active data guard or Logical Stand by

Hi All,
Need a suggestion of on below scenario.
We have a production database ( oracle version 11g R2 ) and planning to have a Logical standby or physical standy (Active data guard). Our usage of the standby database is below.
1) Planning to run online reports (100+) 24x7. So might create additional indexes,materialized views etc.
2) daily data feed ( around 300+ data files ) to data warehouse. daily night, jobs will be scheduled to extract data and send to warehouse. Might need additional tables for jobs usage.
Please suggest which one is good.
Regards,
vara.

Hello,
In active dataguad Whig is feature from 11gRx ,
If you choose active dataguard, you have couple of good options, one is you can make a high availability of your production database, which can act as image copy of production, as you are asking in 11g you have more advantage where you can open in read only mode and at the sometime MRP will be active, so you can redirect users to connect standby to perform select operations for reporting purpose. So that you can control much load on production ,
Even uou can perform switchover in case of role change, perform failover if your primary is completely lost. Also you can convert to physical to logical standby databases & you can configure FSFO
You have plenty of options with active dataguard.
Refer http://www.orafaq.com/node/957
consider closing the thread if answered and keep the forum clean.
>
User Profile for user11261773
user11261773
Handle:     user11261773
Status Level:     Newbie
Registered:     Jul 14, 2011
Total Posts:     12
Total Questions:     6 (5 unresolved)
>
Edited by: CKPT on Mar 18, 2012 8:14 PM

RMAN in active data guard with real time apply ON without a catalog DB

I would like to know whether I can take RMAN backups (both level 0 & incremental) in active data guard with real time apply ON without a catalog database. version is 11.2.0.3.2. Will it make difference in the control file of standby syncing with primary? Can I use these backups on primary to restore and recover the database(including control file backup)?

Thank you very much msberg. Could you please answer the below queries as well?
Should I cancel Real Time Apply before starting RMAN?
Will it make difference in the control file of standby syncing with primary? Is it possible to use these backups on primary to restore and recover the database(including control file backup)? If possible, how will I do that?

Active Data Guard Licensing

I have no idea where to ask this question and if I'm asking in the wrong forum I'd appreciate it if someone can direct me to the right one.
I have a physical standby server and I'd like add the Active Data Guard option to it to offload ETL processing. If I want to use named user plus licensing, how many named users to I need to pay for? There is only 1 server, 1 process, and 1 user that will be pulling data from this standby server into a SQL Server landing store database. Eventually the data will make it into a data warehouse (also SQL Server), SQL Server Reporting Services, and SQL Server Analysis Services. Between SSAS and SSRS there might be 100 distinct users on the front end, but they are all several levels removed from the standby server.
So the question is how many named users do I need to buy? The definition of "named user plus" in the licensing definitions is about as clear mud. I think I only need 1. But it could be 25 based on minimum # of users for EE. And it could be 100 if every user of SSRS and SSAS is counted individually.
I'm trying to avoid doing processor based licensing which is equally unclear but on initial impression seems to be much more expensive. The standby server in question has 2 dual core intel xeon processors, running on Windows 2008 R2. The version of Oracle is 11GR2 Enterprise Edition. If I've done the math right, processor licensing comes out to 23k.

Hello;
Active Data Guard does need a license and you are in the correct forum. But only your Oracle salesperson can answer this question.
Was at Cloud Control class last month and several DBA's there thought everyone has a similar license agreement. Not true. So somebody here might guess at your answer, but in the end only Oracle's answer will count.
Best Regards
mseberg

Active Data Guard Question

Hi All,
I'm thinking whether the oracle active data guard can enable "multiple" physical standby database to be opened for read-only access while Redo Apply is active?
As i read a lot of document, seems like only able to enable "one" physical standby database only.
Let say i have one production database, and i have two or more physical standby DB (can be RAC or stand alone) in different country,
can this two physical standby be enable active data guard for read-only access?
Any idea? Thanks in advance.
Best Regards,
hau

Dear klnghau,
If your project is on hold now then you should have time to read some more!;
http://www.oracle.com/us/products/database/options/active-data-guard/index.htm
Please also read the following thread;
More than One Physical Standby Database
Regards.
Ogan

Does Oracle 10g support Active Data-guard?

Hi all,
Can Oracle Database 10g support Active Data-guard?
Thanks you!
Dan
Edited by: Dan on Jul 12, 2011 10:13 AM

no, active data guard is 11gR1 new feature.
In Oracle Database 10g and below you could open the physical standby database for read-only activities (say, to offload some reporting), but only after stopping the recovery process. With these releases, If Data Guard is a part of your DR solution, you really can't afford to pause the recovery process for a long duration for fear of falling behind, so the physical standby database is essentially useless for any read-only activity.
With Oracle Database 11g, that situation changes: You can open the physical standby database in read-only mode and restart the recovery process. This means you can continue to be in sync with primary but can use the standby for reporting. (As in previous versions, you can take the backup from the standby as well.)
refer:- http://www.oracle.com/technetwork/articles/sql/11g-dataguard-083323.html

What are the pros and cons using Active Data Guard vs Data Guard?

My understanding is that Active Data Guard is an additional database option for Oracle 11gR2 Enterprise Edition. I need to know the pros and cons using Active Data Guard vs Data Guard in order to decide whether to get pay extra for the Active Data Guard.
Thanks for any help.

Hemant K Chitale wrote:
Before jumping in to Active Data Guard, one needs to evaluate :
a. Is there really a need to run queries on the Standby ? The Standby could / should be at a remote site so queries are "across the network". Depending on the nature of the queries and the volume of output, the "performance" of the queries may not seem to be the same.
b. If the database is not in Maximum Protection mode, the data "seen" at the standby may not be in "real-time" synch
c. Not all applications are truely read-only when querying. Some applications use "jobs" that write to tables when querying. Such would not work with Active DataGuard. (example : EBusiness Suite). There are very complicated ways of handling this -- and one needs to consider if the complications can be introduced and supported.
Over the network accessing standby read only is really not an good idea, I think no one will compare performance with primary and standby,
But some of them they want to validate data which are very critical, as it is matching with primary or not, Its an added advantage with ACTIVE DATAGUARD
Prior to that until unless stop MRP, open database and then we need to validate, So there is an interruption of recovery, I can say its also an advantage where there is no interruption of recovery.

Urgent : ORA-01426: numeric overflow on oracle 11g Active Data Guard

Hi
I have configured Active Data Guard on oracle 11g, for reporting purpose we will select mutliple querry on target side(10 users). we are getting 'numeric overflow erro'r on alert log file When we issuing multiple query on target side. PLeae let me know is this error will cause performance degrad. if it will degrade performance mean please tell me how to resolve this problem. Why the numeric overflow is comming . and it is not comming in the primary database, it is comming in standby database only. please any one help it is very urgent
is there any parameter To overcome this problme
Please please it is very important to me and very urgent .
Thanks
nafees
Edited by: Nafees on Jan 1, 2009 3:44 AM
Edited by: Nafees on Jan 1, 2009 3:54 AM

There is no one drowning.
Your house is not on fire.
The volcano has not exploded.
Please apologize for abusing this forum by claiming your issue is more urgent than other people's requests.
Then, and only then, should anyone help you. I know I certainly won't until I read your sincere apology and promise not to be abusive in the future.

Oracle11g R2 Active Data guard using ASM Problem?

I have configured oracle11g r2 RAC on 2 notes using ASM Grid ( OS unix).
RAC is up and running.
Now I am configuring Active data Guard.
Under grid user instance +ASM and listener is running.
Under oracle user static listener is running.
All disk is mounted.
Oracle RAC and Data Guard directory and structure I have keeped same.
Now my problem is below:
$ ./rman target sys/HPinvent123nbl@dcpdb AUXILIARY sys/HPinvent123nbl@drpdb
Recovery Manager: Release 11.2.0.1.0 - Production on Wed Jan 16 16:28:32 2013
Copyright (c) 1982, 2009, Oracle and/or its affiliates. All rights reserved.
connected to target database: DCPDB (DBID=316773134)
connected to auxiliary database: DRPDB (not mounted)
RMAN> duplicate target database for standby from active database;
Starting Duplicate Db at 16-JAN-13
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=5644 device type=DISK
contents of Memory Script:
backup as copy reuse
targetfile '/u02/app/oracle/product/11.2.0/dbhome_1/dbs/orapwdcpdb1' auxiliary format
'/u02/app/oracle/product/11.2.0/dbhome_1/dbs/orapwdrpdb' ;
executing Memory Script
Starting backup at 16-JAN-13
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=1897 instance=dcpdb1 device type=DISK
Finished backup at 16-JAN-13
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 01/16/2013 16:28:48
RMAN-06136: ORACLE error from auxiliary database: ORA-00200: control file could not be created
ORA-00202: control file: '+data'
ORA-17502: ksfdcre:4 Failed to create file +data
ORA-15001: diskgroup "DATA" does not exist or is not mounted
ORA-15055: unable to connect to ASM instance
ORA-01031: insufficient privileges
RMAN>
Please help.\
Thanks
Solaiman

root@drpdb1 []# id oracle
uid=108(oracle) gid=700(oinstall) groups=701(dba)
root@drpdb1 []# id grid
uid=109(grid) gid=700(oinstall) groups=701(dba),702(asmdba)
Edited by: 876149 on Jan 16, 2013 3:19 AM

Looking for Active Data Guard in Oracle 11g Release 2 References

I want to reach out to customers who have implemented Active Data Guard in production (preferably 11.2), so that we can develop some
customer references that in turn will benefit other customers. The customers who get selected for such references may further be selected to publish their case study directly in oracle.com and/or invited as a customer co-speaker in the upcoming Oracle OpenWorld at San Francisco (Sep 19-23, 2010). Being a customer co-speaker at OOW means they get a free pass to the full conference (regular price for that is $1795-$2495).
Please send any follow-ups to [email protected]
Thank you.
Larry M. Carpenter
Oracle Data Guard & MAA Product Manager

Hi Larry,
This is Bhavik Desai Oracle -DBA@Amazon. I do have couple of Active Standby running on 11gR2 On RHEL 5 64-Bit platform.
Most of the databases are reporting on (DSS Having 2-4 TB in size) having FSFO configured.
It would be a pleasure if i can provide any benchmarking to you on this.
Regards,
Bhavik Desai

Oracle 11g Active Data Guard and SAP R3

Hi All,
I have a query regarding Oracle 11g Active Data Guard and SAP R3.
Does the Oracle 11g R1/R2 Active Data guard feature supported with SAP R3?
I appreciate your help to provide any link or document for the same.
Thanks,
Vihang

I have a query regarding Oracle 11g Active Data Guard and SAP R3.
Does the Oracle 11g R1/R2 Active Data guard feature supported with SAP R3?
I appreciate your help to provide any link or document for the same.
Oracle database 11g functionality certified by SAP, check below link
http://www.oracle.com/us/solutions/sap/oradb11g-article-upd-1-323074.pdf
http://www.oracle.com/technetwork/middleware/ias/downloads/osb-11gr1certmatrix.xls

Oracle 11g Active Data Guard help ?

Hi Friends,
I successfully setup an Active data guard environment(11g). But, I dont know when the PROD database is highly utilize , its read only tasks like reporting and backup are doing in STANDBY. How can I know which db (prod or stand by) is used for these readonly operations ?
Regards
Vish

It is not so simple to direct reports to the Physical Standby as you seem to assume.
You need to do some work for the setup.
See here for a description:
http://uhesse.com/downloads/real-time-query-presentation/
Kind regards
Uwe Hesse
Don't believe it, test it!"
http://uhesse.com

Active Data Guard in different database versions (11.2.0.3 and 11.2.0.4)

Similar Messages

Maybe you are looking for