Pre requisites include the use of 10g oracle server, using spfile on both the. Faststart failover oracle data guard 10g release 2 page 7 maximum availability architecture oracle test results oracle tested a faststart failover configuration comprised of a production database, standby database, and observer, all running redhat linux 3. Configuration of 10g data guard broker and observer for. Oracle 9i data guard is the new name for oracle 8i standby server, incorporating a large number of new features. Still, this exercise provide a degree of familiarity with data guard.
Oracle data guard concepts and administration, 10g release 2 10. Role transition plays an important part in data guard by providing an interface that allows dbas to activate a standby database to take over as the primary production database or vice versa. Jed walker is the manager of database operations for the comcast media center in centennial colorado. If the primary database becomes unavailable, then you can use oracle data guard to switch or fail over the standby database to the primary role. Using recovery manager with oracle data guard in oracle10g.
Tip the standby databases in oracle cloud infrastructure database are physical standbys. I have a production environment of oracle 11g r2 patchset 4 primary database configured with 2 standby machines. After my initial setup i can ship and apply logs from the primary database to the standby db. Performing manual role changes when faststart failover is enabled 524. Performing manual role changes when faststart failover is enabled 521. He has been working with oracle database since 1997 and is an oracle certified professional for 9i, 10g, and 11g database. It is assumed that oracle database 10g release 2 and all patchsets have been installed on both nodes in the oracle data guard configuration. The oracle active data guard option, an extracost facility, extends oracle data guard functionality in oracle 11g configurations. He is an oracle 10g certified professional having good knowledge in oracle technologies such as data guard, rman, rac, and performance tuning.
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. Primary database changes that require manual intervention at a physical standby. Note that using enterprise manager grid control data guard physical standby can be implemented from the grid control console easily. Data guard physical standby managing password files in a rac physical standby doc id 1984091. I already created the nonmultitenant database on the server oradg1. How many standby databases we can create in 10g11g. Oracle white papersetup flashback database on data guard physical standby database for sap customers 2 preface many studies show that 40% of application outages are caused by operator or user errors. Oraclebase data guard physical standby setup in oracle.
The results of the test are provided in figure 2 below. The databases in a data guard configuration are connected by oracle net and may be dispersed geographically. Maa data guard 10g release 2 setup guide creating a rac. Initialization parameters for instances in a data guard configuration. Oracle dbas rely on oracle data guard to provide continuous uptime in the event of storage subsystem failure, sitewide failure or disaster. Oracle data pump expdp, impdp in oracle database 10g, 11c, 12c test drive the oracle 10g replacement for the exp and imp utilities. Converting a physical standby to a snapshot standby. In this article i shall only focus on those relevant to the oracle9i database. Products purchased from third party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. New parameters for tuning automatic outage resolution with data guard. Data guard is the name for oracles standby database solution, used for disaster recovery and high availability. Till oracle 10g, 9 standby databases are supported.
He has completed more than 90 data guard setups on all platforms, from rac to nonrac and successful cluster migrations with switchovers and failovers for many businesscritical production databases with. Dataguard architecture and its components in oracle 11g. Also see my notes on far sync instances with active data guard. This article gives an example of the setup and administration of data guard using the data guard broker. I have a scenario of oracle 10gr2 database replication using data guard. Table 141 lists the initialization parameters and indicates if the parameter applies to the primary database role, the standby database role, or both. Data guard broker permit to manage a data guard configuration, from both the enterprise manager grid control console, or from a terminal in command line mode. From oracle 11g r2, we can create 30 standby databases. This article gives an example of the setup and administration of data guard using. What are the parameters weve to set in primarystandby for data guard.
Provides dynamic load balancing, failover, and centralized service management for a set of replicated databases that offer common services. Oracle 10g data dictionary and initialization parameters 1. To have the dataguard option, we require an enterprise edition. Dgmgrl shows that configuration and databases have been set with success. All management operations can be performed either through oracle enterprise manager, which uses the broker, or through the brokers specialized commandline interface dgmgrl. Database administrators stack exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Cowritten by a team of oracle experts, oracle data guard 11g handbook provides a sound architectural foundation along with best practices for configuration, monitoring, maintenance, and troubleshooting. You are correct, the oracle web site says that data guard sql apply and redo apply comes as part of 10g enterprise edition ee.
A data guard configuration consists of one production database and one or more standby databases. The first phase in creating an oracle data guard configuration involves performing the necessary tasks on the primary database. Manually setting up a physical standby database is a simple task when all prerequisites and setup steps are carefully met and executed. Oracle data guard concepts and administration oracle database. Table 1 lists the initialization parameters and indicates if the parameter applies to the primary database role, the standby database role, or both. Performance tuning enhancements in oracle database 10g oracle 10g includes many performance tuning enhancements which take. Oracle d ata guard ensures high availability, data protection, and disaster recovery for enterprise data. Data guard physical standby setup in oracle database 11g release 2. Hi there i have recently configure data guard with database 10g 10. Configuration of oracle 10g data guard pavan dbas blog. My data gurad configuration show success status with 2 databases on same or local location.
The below diagram shows the migration architecture using oracle data pump. This article contains an updated version of the 9i physical standby setup method posted here. You will get full details on implementing deployment architectures to address requirements that extend beyond disaster recovery. It allows readonly access on the physical standby node at the same time as applying archived transactions from the primary node. Aug 20, 2017 this document describes the configuration of the oracle data guard version 12. Oracle data guard concepts and administration 10g release 2 10. This example uses the same twonode data guard configuration that was created in the guide data guard configuration example oracle 10g, physical standby a primary database modesto on host vmlinux1. White paper deploying oracle data guard on oracle database. Maximum availability architecture for more information about these initialization parameters, see chapter, initialization parameters in oracle data guard concepts and administration manual. As all of you must be knowing that dataguard is not available in standard edition. Data guard is the name for oracle s standby database solution, used for disaster recovery and high availability. Use data guard switchover to move production to asm.
As to data guard, oracle is slicingoff the functionality as data guard matures. Oracle 10g data dictionary and initialization parameters 1 free download as powerpoint presentation. We will configure the standby database on the server. Oracle data guard maintains the standby database by transmitting and applying redo data from the primary database. Faststart failover oracle data guard 10g release 2 page 7 maximum availability architecture oracle test results oracle tested a faststart failover configuration comprised of a production database, standby database, and observer, all running redhat linux. Oracle data guard concepts and administration oracle docs. Oracle 11gr2 data guard physical standby part i author. Data guard must use spfile, in order to configure it we create and configure the standby parameters on a regular pfile, and once it is ready we convert it to an spfile. Step by step configuration 10g dataguard step by step process of configuring oracle 10gr2 10. Oracle data guard ensures high availability, data protection, and disaster recovery for enterprise data. The table also includes notes and recommendations specific to setting the parameters in a data guard environment. Sqlshutdown immediate backup the data files, online redologs and the standby logs if created and scp to the standby server in the corresponding directory. This oracle documentation was created as a support and oracle training reference for use by our dba performance tuning consulting professionals.
Set all necessary initialization parameters on the primary database. Create an initialization parameter file for the standby database. The oracle data guard broker is a distributed management framework that automates and centralizes the creation, maintenance, and monitoring of data guard configurations. Lists the tables that will be skipped by sql apply. If you are using an spfile instead of an initialization parameter file, then. Database parameter files for different server or cluster migration 12. Click here for a guide on installing oracle database 10g r2 on the red hat linux 5 platform configure the primary database. Data guard physical standby managing password files. Quick guide to configuring oracle 11gr2 data guard.
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. Data guard configurations and broker configurations. Oracle active data guard tips oracle consulting, oracle. Primary database changes that require manual intervention at a physical.
The enviroment 2 linux servers, oracle distribution 2. Oracle data pump oracle data pump utility enables very highspeed movement of data and metadata from one oracle db to another. 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. 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. Oracle data guard concepts and administration, 10 g release 2 10. 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. Oracle data guard broker for automatic reinstatement of the failed primary database as a new standby database as an alternative to using flashback database.
There are two types of role transitions supported in oracle 10g data guard. The set of databases can include oracle real application clusters oracle rac and noncluster oracle databases interconnected through oracle data guard, or any other replication technology. Specify the same value on the primary and standby databases if you expect to do a switchover. There are no restrictions on where the databases are located, provided they can communicate with each other. I have selected the data guard command line interface. This chapter describes the initialization parameters that affect databases in a data guard environment. Data guard, physical standby creation, step by step. Adjust initialization parameters for the logical standby database. Following are the new capabilities available with oracle data pumpdmp. We will configure the standby database on the server oradg2. Maximum availability architecture maa data guard 10g setup guide creating a single instance physical standby for a rac primary overview oracle maximum availability architecture maa 1 is oracles best practices blueprint based on proven oracle highavailability technologies and recommendations. Using recovery manager with oracle data guard in oracle database 10g page 5 the standby database is a physical standby database and backups are only taken on the standby database.
Manual recovery of archived redo log files in an archive gap. For more detailed information read the oracle 9i data guard concepts and administration documentation. Provide superior data protection, availability, and disaster recovery using the tested techniques in this oracle press guide. Implementing data guard for oracle database 10 g with rac provides end to end data protection and high availability as illustrated in figure 2. Quick guide to configuring oracle 11gr2 data guard physical. Using recovery manager with oracle data guard in oracle database 10g executive summary a welldocumented and validated system and software recovery plan is critical to an overall high availability strategy. This document describes the configuration of the oracle data guard version 12. Oct 24, 2009 the oracle data guard broker is a distributed management framework that automates and centralizes the creation, maintenance, and monitoring of data guard configurations. We will configure a standby for a nonmultitenant database. Data guard is highly integrated with oracle database 10g and it is a primary choice for data protection and disaster recovery of oracle databases. In this article, i will show you the steps for dataguard configuration in 11gr2 standard edition. Oct 04, 20 in this article, i will show you the steps for dataguard configuration in 11gr2 standard edition. Oraclebase data guard physical standby setup using the.
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