Data guard physical standby setup in oracle database 11g release 2. Explains the structure of a physical standby database with oracle data guard in an sap environment, indicating all the steps needed to successfully install and configure an oracle data guard system with a. May 12, 2016 manual physical standby failover activate standby database oracle 11g manual data guard partv published may 12, 2016 may 15, 2016 by jignesh jethwa in case of disaster with primary database site, or not available for production for any reason then we can activated standby database as a primary production database. Oracle 11g data guard introduced several new features. Enabled forced logging by issuing the following command. In dataguard setup, we can make primary database as physical standby database and standby as primary. Perform the following steps to upgrade to oracle database 11 g release 1 11. Configure physical standby database oracle database 12c. A standby database is a transactionally consistent copy of an oracle production database that is initially created from a backup copy of the primary database. It enables production oracle database to survive disasters and data corruption. If the production database becomes unavailable because of a planned or an unplanned outage, data guard can switch a standby database to the. How to configure oracle grid 12c, database 12c and rac to rac. We use the dataguard feature to automatically replicate the primary database to the physical standby database in real time. The course briefly discuss about the need of oracle data guard, oracle high availability and how to setup oracle data guard.
Oracle data guard ensures high availability, data protection, and disaster recovery for enterprise data. Some key points before proceeding with the physical standby setup. The oracle active data guard option, an extracost facility, extends oracle data guard functionality in oracle 11g configurations. Data guard is oracle 12cs true disaster protection technology. Oracle 12cconfigure oracle data guard faststart failover.
Oracle data guard 11gr2 administration beginners guide. Oracle 11g dataguard administration download everythings. Setting up oracle 11g data guard for sap customers. Here, in these documents, i show you guys step by step dataguard steup and configuration which i have done in my real time environments. I would like to set up an oracle database dataguard system. If a license for the oracle active data guard option has been purchased, redo apply services can also run on a physical standby database instance that is open. Oracle d ata guard ensures high availability, data protection, and disaster recovery for enterprise data. Oracle data guard is a crucial part of the insurance policy that guarantees against unrecoverable disasters. Oct 15, 2014 in 11g, oracle introduced the active data guard feature.
The primary database is also backeed up through rman. Upon completion of the course, you will be able to. You will understand production database changes, parameters for production database, cloning production database for standby, enabling data guard services and verifying your data guard setup. Without shutting down primary, we need to create physical standby database using rman duplicate from active database command no need to take backup of primary database active data guard is a new option for oracle database 11g enterprise edition. Oracle database 11g active data guard hands on workshop setup. A primary database running on a dedicated server and a physical standby database on a separate dedicated server. Oracle data guard 11g overview logical standby database.
This step by step guide will take you through the steps to install and configure oracle grid infrastructure 12c and database 12c including rac to rac data guard and data broker configuration in a primary and physical standby environment for high availability. In other words, a physical standby database cant be open readwrite whether in a regular data guard configuration, or active data guard configuration, and hence oracle data guard does not support the use of native ebs reporting tools that require readwrite access against the standby environments. By activeactive, it means bothall sites are up, running, and accessible. Step by step guide to build data guard in oracle 11g. Oracle data guard provides a comprehensive set of services that create, maintain, manage, and monitor one or more standby databases to enable production oracle databases to survive disasters and data corruptions. How to configure oracle grid 12c, database 12c and rac to. In the next article in this series, ill delve into how oracle 11g handles the ultimate worstcase scenario the loss of the primary database by showing how an oracle dba can initiate a failover operation to a physical standby database, as well as resurrect a failed primary database back to physical standby with data guards reinstate command. First of all, the data guard broker is required if you would like to administer your databases in oracle cloud control. Rolling forward a physical standby database using the recover command a standby database is a transactionallyconsistent copy of the production database. Test1 primary test2 standby before doing switchover, we have to make sure that the existing standby setup is fine and the archives are getting shipped and applied properly on standby.
Aug 21, 2009 in the next article in this series, ill delve into how oracle 11g handles the ultimate worstcase scenario the loss of the primary database by showing how an oracle dba can initiate a failover operation to a physical standby database, as well as resurrect a failed primary database back to physical standby with data guard s reinstate command. Oracle data guard is a technology which helps you protect against planned and unplanned downtime. This article is a repeat of the manual 11gr2 data guard setup described here, but here the data guard setup and administration is performed using the data guard broker. The databases in a data guard configuration are connected by oracle net and may be dispersed geographically. Once the standby database is created and configured, oracle data guard automatically maintains the standby database by transmitting primary database redo data to the standby system, where the redo data is applied to the standby database. Faststart failover enables the broker to perform these tasks automatically failover to standby database the key to this feature is a monitoring process appropriately named the observer. To steal liberally from larry carpenters book on data guard, data guard is a product of more than 15 years of continuous development.
How to setup active dataguard in oracle 11g shivananda rao. Here, in these documents, i show you guys step by step dataguard steup and configuration which i have done in. Chapter 2 shows complete steps to implement a physical standby database. This allows the standby database to be open in readonly mode, but still apply redo information. But i cant blame the customer as this rule is well hidden in the documentation. Data guard physical standby setup using the data guard broker in oracle database 11g release 2.
Udemy oracle data guard configure physical standby on. Primary and standby database running on oracle linux server 6. This article gives an example of the setup and administration of data guard using the data guard broker. A d ata guard configuration consists of one production database and one or more standby databases. Manually setting up a physical standby database is a simple task when all prerequisites and setup steps are carefully met and executed. This feature increases the availability of the database by eliminating the need for dba involvement as part of the failover process. By the end of this lecture, you should be able to do the following. Data guard physical standby setup in oracle database 11g. Forced logging is on in primary database sqlalter database force logging. With oracle database 11g active data guard, administrators can improve production database performance by offloading resourceintensive backup and queryreporting operations to physical standby databases a data guard configuration consists of one production database and one or more standby databases.
Further we will see different features of data guard and recovery issues. Let us open physical standby and test active data guard. In 11g, oracle introduced the active data guard feature. The tutorial was implemented using oracle virtualbox version 5 and an appliance with oracle database. Oracle 12c data guard create physical standby database. Its not focusing on transportation method, duplication method, protection modes nor extra functionality available for physical standbys. The observer is a component of the dgmgrl interface that is.
With oracle database 11g active data guard, administrators can improve production database performance by offloading resourceintensive backup and queryreporting operations to physical standby databases a data guard configuration consists of one production database and. The exercises are designed from the top down so that. This article is a repeat of the manual 11gr2 data guard setup described here, but here the data guard setup and administration is. There is a ton of reference material available on how data guard, active data guard, and golden gate works. It allows readonly access on the physical standby node at the same time as applying archived transactions from the primary node. How to setup active dataguard in oracle 11g the main advantage of setting up dataguard in 11g is that the database can be opened in readonly mode allowing the users to access the physical standby database for fetching reports and on the same time. Oracle active data guard tips oracle consulting, oracle. Realtime query and dml offload uses the standby database for queries, reports and occasional updates without impacting protection of the primary automatic block repair provides an automatic and user. This article presents how to configure physical standby database for oracle database 11g release 2 11.
Each new release of oracle has augmented these disaster recovery features, and oracle database 11g expands them dramatically to include the capability to keep a standby database open for readonly queries while still accepting change vectors from the primary database. In this lecture you will learn the procedure you should follow to build a physical standby database. The active data guard option is an evolution of data guard technology that incorporates significant innovation multiple patents pending designed for a specific purpose to improve production database performance for critical transactions. Oracle data guard configure physical standby on virtualbox. Oracle 11g installation with asm and data guard setup. The 11g database will be primary db and a new 12c db will be created on another serve r box, as physical standby. They also learn how data guard standby databases can be used to support production functions such as reporting, querying, and testing, while in a standby role. Oracle database 11g active data guard hands on workshop. Oracle active data guard enables readonly access to a physical standby database for queries. Data guard physical standby setup in oracle database 11gr1. Active data guard enables readonly access to a physical standby database while redo apply is active. Jun 22, 2016 active data guard is included with extreme performance edition of the database and can be matched to synchronize an on premise or in cloud database that is also licensed to run active data guard. Jun 07, 2018 you will understand production database changes, parameters for production database, cloning production database for standby, enabling data guard services and verifying your data guard setup.
How to create physical standby in dataguard oracle. Oracle data guard 11g features, including oracle active. Manual physical standby failover activate standby database oracle 11g manual data guard partv published may 12, 2016 may 15, 2016 by jignesh jethwa in case of disaster with primary database site, or not available for production for any reason then we can activated standby database as a primary production database. Data guard physical standby setup in oracle database 11gr2. Using oracle 11gs active data guard and snapshot standby. Oraclebase data guard physical standby setup using the. Explains the structure of a physical standby database with oracle data guard in an sap environment, indicating all the steps needed to successfully install and configure an oracle data guard system with a physical standby database and the logical order required. Configure oracle net on the rac primary database and rac physical standby database perform rman duplicate method to restore database for standby use copy the password file rac primary database to rac physical standby database verify data guard configuration with creating object with rows. In very simple terms, when you open physical standby in read only mode, it is known as active data guard. This means a standby can be available for querying, yet still be up to date. Data guard is the name for oracle s standby database solution, used for disaster recovery and high availability. Steps to configure oracle 11g data guard physical standby. Manual physical standby failover activate standby database. The course includes data guard architecture, the configuration of physical and logical standby databases, and role transitions.
Understand the concepts and the component definitions are a good start to successfully implement an oracle data guard environment. Master oracle 11g data guard video course teaches you how to implement oracle data guard in real time environment. There are no restrictions on where the databases are located, provided they can communicate with each other. This article presents how to configure physical standby database for oracle database 12c release 1 12. But, active data guard needs license for and you must check with oracle for same before implementing it. The oracle 11g new features book notes some data guard pricing changes. Hi dbamates, as we have already seen the dataguard concepts and details. We can trace the roots of todays data guard as far back as oracle7 in the early 1990s.
Check that the primary database is in archivelog mode. Mar 10, 2012 some key points before proceeding with the physical standby setup. This chapter states and explains most of the options available to implement verify and monitor a successful physical standby database. Data guard has options for multiple standby sites as well as an activeactive configuration. Data guard provides a comprehensive set of services that create, maintain, manage, and monitor one or more standby databases to enable production oracle databases to survive disasters and data corruptions. Active data guard is licensed option to the oracle database enterprise edition and enables advanced capabilities that extend the basic data guard functionality. How do you reduplicate a broken physical standby database. Media recovery was used to apply archived redo logs to a remote standby database, but none of the automation that exists today was present in the product. Data guard is the name for oracles standby database solution, used for disaster recovery and high availability.
Before you create a standby database you must first ensure the primary database is properly configured. Data guard physical standby setup using the data guard broker in oracle database 11g release 2 assumptions you have two servers p. The tutorial was implemented using oracle virtualbox version 5. If it is noarchivelog mode, switch is to archivelog mode. Configure physical standby database oracle database 11g. Oct 22, 2017 this step by step guide will take you through the steps to install and configure oracle grid infrastructure 12c and database 12c including rac to rac data guard and data broker configuration in a primary and physical standby environment for high availability. Creating physical standby database on oracle 11g shivananda rao. May 11, 2012 step by step guide to build data guard in oracle 11g. Maa data guard 12c setup guide creating a rac physical. Mar 19, 2012 how to setup active dataguard in oracle 11g the main advantage of setting up dataguard in 11g is that the database can be opened in readonly mode allowing the users to access the physical standby database for fetching reports and on the same time the physical standby database can be in recovery mode. The exercises are set up to walk you through oracle database 11g active data guard using sqlplus and the broker working with a physical standby redo apply database using active data guard to read your data as redo is being applied while maintaining data protection. This article contains an updated version of the 9i physical standby setup method posted here. Oracle data guard broker and the enterprise manager online help system for information about using the graphical user interface to automatically create a physical standby database.