Primary in standalone , Standby in RAC

What a preposterous Idea. I know.... This is not for production .
I have created standalone Primary to standalone Standby succesfully in the past.
At work I've been asked to create a 2-node standby DB for our 2-node RAC DB using RMAN Duplicate. I am planning to test this on my Laptop first. But my Laptop has only 8gb RAM. Using VM Ware workstation 8, I am planning to create
Primary : A standalone DB
Using RMAN Duplicate, I'll be creating
Standby : A 2-node RACSince Primary is standalone and has only 1 thread and standby DB in RAC having 2 threads, I am not sure if this will work. Ever heard of anyone creating a setup like this.
DB version :11.2.0.2
Guest OS : Solaris 10 (August 2011 Release )
Host OS : Windows 7
Using VM Ware workstation 8

Earlier ihad the same doubt.
Larry carpenter & me had a discussion on this, I can remember that. Read below post.
primary stand alone - standby 2 node physical rac?
Close the thread if answered and keep the forum clean.

Similar Messages

Static listener registration 11gr2 RAC Primary and standalone Standby

Hi Guys,
I have to build up a single instance Physical Standby(Dataguard) for a primary RAC (11.2.0.1).The concern or rather confusion we have three SCAN LISTENERS across 2 node cluster,in order for me to have static registration for duplication of database for standby i need to have it put in the listener.ora .
Do i have to create the static listeners for default listener as well as the scan listeners?

My understanding is No.
The Oracle instance would automatically register the local listener to SCAN listeners, so I believe just the default needs this.
This document has Scan listener example and none of them use a _DGMGRL
http://www.oracle.com/technetwork/database/features/availability/maa-wp-11g-rac-standby-133152.pdf
Best Regards
mseberg
This document seems to support my statement :
11.2 Scan and Node TNS Listener Setup Examples [ID 1070607.1]
Edited by: mseberg on Aug 5, 2011 2:02 PM
Also of interest :
11gR2 Grid Infrastructure Single Client Access Name (SCAN) Explained [ID 887522.1]

Standalone Standby Creation for RAC database

Hi,
I am in process of configuring standalone standby for my RAC database. The database version is 11.2.0.3. RAC is using SCAN listeners. I have got MOS for configuring standalone standby for RAC 387339.1. But specific steps I need to perform in case of SCAN listeners.
Any document or link is appreciated.
Regards,

Hello;
The white paper "Rapid Oracle RAC Standby Deployment: Oracle Database 11g Release 2" has a section on this.
http://www.oracle.com/technetwork/database/features/availability/maa-wp-11g-rac-standby-133152.pdf
This may also help :
http://www.oracle.com/technetwork/database/availability/maa-wp-11g-racone-standby-501088.pdf
And these :
Configuring and Administering Oracle Net Listener
http://docs.oracle.com/cd/E11882_01/network.112/e10836/listenercfg.htm
srvctl relocate scan
http://download.oracle.com/docs/cd/E11882_01/rac.112/e16795/srvctladmin.htm#RACAD7499
srvctl relocate scan_listener
http://download.oracle.com/docs/cd/E11882_01/rac.112/e16795/srvctladmin.htm#CDDIDDCF
Troubleshooting Oracle Clusterware
http://download.oracle.com/docs/cd/E11882_01/rac.112/e16794/troubleshoot.htm#CHDFJIEG
From Oracle support :
How to Setup SCAN Listener and Client for TAF and Load Balancing [Video] [ID 1188736.1]
Best Regards
mseberg

How do the application servers connect the new database after failing over from primary DB to standby DB

How do the application servers connect the new database after failing over from primary DB to standby DB?
We have setup a DR environment with a standalone Primary server and a standalone Physical Standby server on RHEL Linux 6.4. Now our application team would like to know:
When the primary DB server is crashed, the standy DB server will takeover the role of primary DB through the DataGuard fast failover. As the applications are connected by the primary DB IP before,currently the physical DB is used as a different IP or listener. If this is happened, they need to stop their application servers and re-configure their connection so the they coonect the new DB server, they cannot tolerate these workaround.
Whether does oracle have the better solution for this so that the application can automatically know the role's transition and change to the new IP without re-confige any connection and shutdown their application?
Oracle support provides us the answer as following:
==================================================================
Applications connected to a primary database can transparently failover to the new primary database upon an Oracle Data Guard role transition. Integration with Fast Application Notification (FAN) provides fast failover for integrated clients.
After a failover, the broker publishes Fast Application Notification (FAN) events. These FAN events can be used in the following ways:
Applications can use FAN without programmatic changes if they use one of these Oracle integrated database clients: Oracle Database JDBC, Oracle Database Oracle Call Interface (OCI), and Oracle Data Provider for .NET ( ODP.NET). These clients can be configured for Fast Connection Failover (FCF) to automatically connect to a new primary database after a failover.
JAVA applications can use FAN programmatically by using the JDBC FAN application programming interface to subscribe to FAN events and to execute event handling actions upon the receipt of an event.
FAN server-side callouts can be configured on the database tier.
FAN events are published using Oracle Notification Services (ONS) and Oracle Streams Advanced Queuing (AQ).
=======================================================================================
Who has the experience and the related documentation or other solutions? we don't have the concept of about FAN.
Thank very much in advance.

Hi mesbeg,
Thanks alot.
For example, there is an application JBOSS server connecting the DB, we just added another datasource and put the standby IP into the configuration file except adding a service on DB side like this following:
        <subsystem xmlns="urn:jboss:domain:datasources:1.0">
        <datasources>
                <datasource jta="false" jndi-name="java:/jdbc/idserverDatasource" pool-name="IDServerDataSource" enabled="true" use-java-context="true">
                    <connection-url>jdbc:oracle:thin:@<primay DB IP>:1521:testdb</connection-url>
                    <connection-url>jdbc:oracle:thin:@<standby DB IP>:1521:testdb</connection-url>
                    <driver>oracle</driver>
                    <pool>
                        <min-pool-size>2</min-pool-size>
                        <max-pool-size>10</max-pool-size>
                        <prefill>true</prefill>
                    </pool>
                    <security>
                        <user-name>TEST_USER</user-name>
                        <password>Password1</password>
                    </security>
                    <validation>
                        <valid-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleValidConnectionChecker"/>
                        <validate-on-match>false</validate-on-match>
                        <background-validation>false</background-validation>
                        <use-fast-fail>false</use-fast-fail>
                        <stale-connection-checker class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleStaleConnectionChecker"/>
                        <exception-sorter class-name="org.jboss.jca.adapters.jdbc.extensions.oracle.OracleExceptionSorter"/>
                    </validation>
                </datasource>
                <drivers>
                    <driver name="oracle" module="com.oracle.jdbc">
                        <xa-datasource-class>oracle.jdbc.OracleDriver</xa-datasource-class>
                    </driver>
                </drivers>
            </datasources>
        </subsystem>
If the failover is occurred, the JBOSS will automatically be pointed to the standby DB. Additional actions are not needed.

Switchover 2-node primary 1-node standby

Hi,
Primary database has 2 node RAC, &
standby database has only 1 node - stand alone.
then switchover procedure is normal as 1 to 1 ? or any changes in performing switchover.
Do i need to make the cluster database as single node by setting cluster_database=false?
Please advice.

hi,
please see the documentation: http://download.oracle.com/docs/cd/E11882_01/server.112/e17022/rac_support.htm#i641732
before switchover to a physical standby, all but one primary instances should be stopped; after switchover, started again.
but no need to modify any parameter.

Creating Standby for RAC ASM database using RMAN

We are having a Primary Site of 3-Node RAC ASM and we takes daily RMAN backup with the following script
run
allocate channel c1 device type disk format 'g:\rmanbackup\%U';
backup database;
backup archivelog from time 'trunc(sysdate-1)' until time 'sysdate';
We have configured 3-Node RAC Cluster in Standby site. We have copied the rman backup folder to one of the Nodes in the Standby site.
Request your help to restore the RMAN backup. The backup size is around 200GB. We do not know how to use DUPLICATE DUPICATE option in RMAN as if it is restoring from the Primary Location, then transferring 200GB over the network will not be possible.
We need a solution to restore it directly from the Backup folder available in the DR Server. We are not using catalog.
OS : Windows IA 64-bit
RDBMS : Oracle 10.2.0.4
Storage : ASM
DB Nodes at Primary Site, Node1, Node2, Node3
DB instances at primary site : ORCL1, ORCL2, ORCL3
DB Nodes at Standby Site, Node101, Node102, Node103
DB instances at Standby site : ORCL1, ORCL2, ORCL3
DB Name : ORCL on both the sites.

When you create the standby, you can use catalogued backups, stored somewhere local to your standby servers.
For that, they need to be copied to the standby server, or taken from production there, and after restoring the standby controlfile on the standby server, use rman to catalogue the backups to be used. Then, you can use DUPLICATE... and it will be reading your local backup files.
The directory g:\rmanbackup of your rman script is local to standby servers ?
The docs for this have a lot of details: http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/rcmbackp.htm
Regards.

Data guard synchronization after link down b/w primary and physical standby

Hi All,
I have configured data guard on oracle 11gr2 db. Normally switchover between my primary and physical standby happens smoothly and the Apply lag would be zero. Recently We had to test a scenario when the network link between Primary and Physical standby is completely down and Physical standby is isolated completely for more than half an hour.
When we brought up the link every thing worked smoothly but apply lag started increasing from 0 to around 3 hrs. And then it started reducing to 0. Currently Apply lag and transport lag shows 0.
But is this normal behaviour of oracle data guard that when the link between primary and physical standby is completely down, It requires 3-4 hrs for resynchronization ??? Even when during isolation, there were very few transactions happend on primary database ??
Are there any documents available for this scenario??
Thanks

Hi, after the link is up, if there were some transactions and produced archive logs it's normal to take some time for resync. To check if 3-4 hours is normal or not, you can repeat the scenario and this time check
- how many archivelogs does primary produce in this period.
- after the link is up, does archivelog transfer immediately starts from primary to standby? Is primary able to send these archivelogs parallel?
- Is there anything wrong with the apply process?
check primary & standby alert log files, and run this query on standby to check the transport and apply processes:
SELECT PROCESS, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS FROM V$MANAGED_STANDBY;
regards

Replicate from primary to logical standby

We are considering a logical standby, but have three tables with an XMLTYPE datatype. We have successfully set up a bi directional streams environment, with advanced replication also handling those tables that streams cannot (such as those already noted).
However, when we try to setup advanced replication on the primary and logical standby, adding a master database at the logical standby hangs with AWAIT_CALLBACK from the standby. We turned off the guard, SKIPPED apply on the replication schema, but it still hangs.
Is this by design (it does seem odd to replicate to a standby database, I know :)), or is this completely impossible, or are we missing something? Will we have to use Streams to accomplish this, rather than a logical standby (built on top of streams?)
Thanks!
Steve

sequences are stored and administrated in a datadictionary table.
The dictionary is 'replicated'.
What is your exact problem?
Sybrand Bakker
Senior Oracle DBA

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

Changing oracle_home(standalone to ORACLE RAC).

Customer has two oracle environments on the same envioronments.
1) Standalone database running on Standalone oracle_home.
2) RAC databases running on RAC ORACLE_HOME.
Now customer would like to change standalone database to RAC ORACLE_HOME. What is the procedure for this.
Oracle version is 11.2.0.3.4 on both environments. Just i need to change the oracle_home only. If any additional clarifications...happy to reply with more details....
Thanks in-advance.

Please use the below link, its helpful
http://docs.oracle.com/database/121/RACAD/cvt2rac.htm
Single-Instance Database on a Cluster Running from an Oracle RAC-Disabled Home
You can create a single-instance database on a cluster running from an Oracle home with the Oracle RAC option disabled. To create an Oracle home on a cluster with Oracle RAC disabled, you can select local and non-cluster on the Node Selection Page of Oracle Universal Installer when installing the Oracle Database software. You can also performed a one-node cluster (with Oracle RAC) installation, but later disable the Oracle RAC option.
Perform the following procedures to convert this type of single-instance database to an Oracle RAC or Oracle RAC One Node database:
1.    Use DBCA to create a preconfigured image of your single-instance database as described in "Use DBCA to Create an Image of the Single-Instance Database" To perform the conversion manually, shut down the single-instance database.
2.    Change the directory to the lib subdirectory in the rdbms directory under the Oracle home.
3.    Relink the oracle binary by running the following commands:
4. make -f ins_rdbms.mk rac_on
5. make -f ins_rdbms.mk ioracle

Configuring Non RAC physical standby fro RAC

Hi,
EBS-R12i , Oracle Database:11g
We are in project design phase and following is the hardware setup for Critical banking domain:
Database (2 node RAC)-Solaris 10
Application server server (2 server) -Solaris 10
Web server (2 server for Failover)= RHEL
For DR
Database (1 node)-Solaris 10
need to know
1.What are the best practice to implement this kind of setup and steps to configure DR as Non-RAC physical standby for RAC database server.
2.What are implication if we go for single node except failover node unavailability for DR.
3.What are the steps of Switchover in this case.
4.What's the recommended backup solution for this setup of 8-10 Terabyte database with db growth rate of 50% per year.

1.What are the best practice to implement this kind of setup and steps to configure DR as Non-RAC physical standby for RAC database server.There really aren't any differences in setting up your physical standby in a non-RAC configuration. It is after the physical standby is setup that it is converted to a clustered database, if desired. In your case, you do not desire the conversion.
The best place to start for best practices in setting up your physical standby is the Oracle documentation on the subject.
http://download.oracle.com/docs/cd/E11882_01/server.112/e17022/toc.htm
2.What are implication if we go for single node except failover node unavailability for DR.The major implications are that you will be running with less horsepower after a failover. So depending on your DR resources, you may have to scale back application access. In addition to less resources, you will also have less availability because you only have one node. Should that node then fail, you will not have a node to failover to.
3.What are the steps of Switchover in this case.The steps are identical if the physical standby is a single node or multiple nodes. These steps are outlined in the Oracle documentation.
4.What's the recommended backup solution for this setup of 8-10 Terabyte database with db growth rate of 50% per year.What are your recovery requirements? Without knowing your recovery requirements, a valid backup solution cannot be determined. How much data loss can you afford in the event of a failure? Do you have data that can be read only? In the event of a failure, how long before you are required to be up and running? Are you required to restore and recover at an offsite location?
Cheers,
Brian

Clonimg Standalone Database to RAC Database

Hi Gurus,,
Database: 10.2.0.4
Os: Linus 2.6
We have standalone and RAC database running.
We want to clone standalone database to RAC datrabase.
Is it any way to do this .
Thanks .

Do you mean that you want to convert a single instance to RAC db?
http://lmgtfy.com/?q=how+to+convert+single+instance+db+to+rac+db
HTH
Aman....

Convert primary and standby to RAC

we have single instance primary and a single instance physical standby , We want to convert the both to RAC db using rconfig.
Do I have to run rconfig against both systems?
What happens after I execute rconfig against primary ? isn’t correct that the changes that rconfig makes to the primary are replicated to the standby as part of data guard replication??
Does this mean my standby becomes a RAC db running on single instance at this point in time?
V11.2
Thanks

ssolbach wrote:
Hi,
all changes inside the database are propagated with the standby. However everything rconfig is doing on the system (and not in the database) and changes in the spfile is not.
Regards
Sebastianso do I have to run rconfig on standby as well? or on standby only set the spfile parameters and I already have rac db ?

RMAN/Dataguard 32bit RAC on OCFS2 primary to 64bit standby on ASM

Hi,
I would like to know if RMAN backup and dataguard standby can be created/configured for primary RAC db on OCFS2 32bit to standby RAC db on ASM 64bit?
This is for migration purposes as opposed on ongoing to minimize downtime.
Thanks,
Gareth

You have neither an OS nor database version? This is answer for 10g:
http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/standby.htm#i72053
Werner

Next log sequence to archive in Standby Database (RAC Dataguard Issue)

Hi All,
I just had implemented Data Guard in our server. My primary Database is RAC configured, but it is only single node. The other Instance was removed and converted it to Developement Instance. For the reason I kept the primary as RAC is when I will implement dataguard, my Primary Database is RAC with 7 nodes.
The first test is successful, and I was able to "switchover" from my primary to standby. I failed in the 'FAILOVER" test.
I restore my primary server and redo the setup.
BTW, my standby DB is physical standby.
When I try to switchover again and issue archive log list, below is my output.
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 38
*Next log sequence to archive 0*
Current log sequence 38
SQL> select open_mode, database_role from v$database;
OPEN_MODE DATABASE_ROLE
MOUNTED PHYSICAL STANDBY
===============================================
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination USE_DB_RECOVERY_FILE_DEST
Oldest online log sequence 38
*Next log sequence to archive 38*
Current log sequence 38
SQL> select open_mode, database_role from v$database;
OPEN_MODE DATABASE_ROLE
READ WRITE PRIMARY
In my first attempt to switchover before I failed in "FAILOVER" test, I also issue +archive log list+ in both primary and standby database, and if I remember it right, next log sequence on both should be identical. Am I right on this?
Thanks in Advance.
Jay A

Or Am i just overthinking on this?
Is dataguard only looking for the current and oldest log sequence?

Primary in standalone , Standby in RAC

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