Ensure the compatible initialization parameter is set to the same value on both the primary and standby databases. Manually setting up a physical standby database is a simple task when all prerequisites and setup steps are carefully met and executed. Oraclebase data guard physical standby setup in oracle. Dataguard on different operating systems in 10g, dataguard started to support different binaries on primary and standby database servers with the same os family. Difference between pfileand spfile in oracle 10g 11g. Data guard implementation for oracle 10gr2 oracle faq. Oracle data guard maintains one or many secondary databases as alternatives to the primary production database. Now the standby database is configured properly and it is receiving archived logs from the primary database. Data guard, physical standby implementation, step by step. The article assumes the following servers are present. Data guard transport tuning and configuration local standby low latency network ideally less than 5ms. Client failover best practices for highly available oracle databases. Oracle 11g data guard switchover and switchback data.
High availability to protect your business joseph meeks. Step by step configuration of data guard broker in oracle 11g as we have already discuss about the data guard broker and its benefits in earlier post. Fusion middleware administrators guide for oracle entitlements server. Data guard is the name for oracles standby database solution, used for disaster recovery and high availability.
In my previous article we have covered how to configured oracle 11g data guard on centos 6. At a high level, automating client failover in a data guard configuration includes. Data guard physical standby database best practices part. Recently i was working on a vldb on the implementation of a disaster recovery environment configured with data.
A data guard configuration may be managed by using either sqlplus, or data guard. 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 observer, a broker client, monitors the data guard configuration and ensures. Primary site standby site clients clients data changes primary data guard broker database standby. Step by step to configure oracle dataguard in oracle 10g. The oracle database 11g oracle active data guard service provides you with access to oracle experts who will work closely with you and your team to assist in your initial evaluation and adoption of the oracle active data guard to realize reduced cost savings, performance gains and simplified operations for your business. What is scan listener and how it works in oracle rac 11gr2. A database switchover performed by oracle data guard is a planned transition that includes a series of steps to switch roles between a standby database and a primary database. There are no restrictions on where the databases are located, provided they can communicate with each other. Stepbystep instructions for creating a logical standby database. Once you have your primary database up and running these are the steps to follow.
Step by step to configure oracle dataguard in oracle 10g the enviroment 2 linux servers, oracle distribution 2. For more detailed information read the oracle 9i data guard concepts and administration documentation. Data guard is the name for oracle s standby database solution, used for disaster recovery and high availability. Starting in 10g, data guard used authenticated network sessions to transfer redo data even in the absence of aso. Data guard uses oracle net sessions to transport redo data and control messages between the members of a data guard configuration. If you already know about data guard and want to quickly set up a demo environment using virtualbox and vagrant you can follow the instructions in my github repository here. I already created the nonmultitenant database on the server oradg1. For example, you can have a standby database on the same system as the production database, along with two standby databases on other systems at remote locations. Primary database does not use oracle managed files omf. Install the complete oracle client administrator by choosing the administrator. Seamless application failover with data guard oracle. These redo transport sessions are authenticated using either the secure sockets layer ssl protocol or a remote login password file. Data guard physical standby database best practices part 1 oracle data guard is one of the software solutions provided by oracle corporation to maximize high availability of oracle databases.
All databases in the data guard configuration must use a password. A data guard configuration consists of one production database and one or more standby databases. I already created a pluggable database on the server. Data guard physical standby setup using the data guard broker in oracle database 12c release 1. Oracle data guard concepts and administration oracle docs. Oracle data guard concepts and administration 10g release 2 10.
Perform the following steps to upgrade to oracle database 11 g release 1 11. This article describes the creation of a standby database using oracle database 11g release 2 and the oracle grid control. We will configure a standby for a pluggable database. We will configure the standby database on the server oradg2. The proper configuration of oracle data guard is essential to ensuring that all standby. It excels at simple, fast, and reliable oneway replication of a complete oracle database to provide high availability and disaster recovery. Oracle database 10g supports database software upgrades from oracle database 10g patchset 1 onwards in a rolling fashion, with near zero database downtime, by using data guard sql apply. All details of this experience can be found on this document step by step configuration of a physical standby database for manual failover be the first to comment.
Create directories adump, bdump, cdump, udump, and archived. This article contains an updated version of the 9i physical standby setup method posted here. The new data guard broker configuration will now be tested by performing a. Stepbystep configuration of data guard broker in oracle 11g. For information on recommendations for oracle data guard configuration, see section 2. I think this is a valuable exercise that provides a close insight of the basic parameters and steps required to setup data guard, it provides also a good feeling of how this technology works, that the high level of automation we got from grid control cannot give. Oracle database exadata express cloud service version na and later.
Maa data guard 12c setup guide creating a rac physical. In oracle database 10g and below you could open the physical standby database for readonly activities say, to offload some reporting, but only after stopping the recovery process. Query to get size of all tables in an oracle database schema. Step by step guide to build data guard in oracle 11g. Oracle data guard configuration step by step in oracle 11g r2 part1 duration. However, if you want to take advantage of new oracle database 11. Oracle 11gr2 grid infrastructure installation steps. A d ata guard configuration consists of one production database and one or more standby databases. The database standby type for the oracle data guard broker configuration. All databases in the configuration use oracle database 10g release 1 or release 2. The databases in a data guard configuration are connected by oracle net and may be dispersed geographically. You must install oracle enterprise manager 10g grid control to use the.
Oraclebase data guard physical standby setup using the. Data guard broker interacts with oracle clusterware or oracle restart to ensure appropriate services are active. Data guard, physical standby creation, step by step. Next step is to configure data guard broker to perform switch over when primary or secondary fails.
If the values differ, redo transport services may be unable to transmit redo data from the primary database to the. After a switchover, each database continues to participate in the data guard configuration. Configuration of oracle 10g data guard pavan dbas blog. Prior to oracle database 10g release 1, the fal client and. These sessions are authenticated using the sys user password contained in the password file. Data guard is the oracle optimized solution for data availability and protection. This document describes the configuration of the oracle data guard version 12. Following a successful switchover operation, the standby database assumes the primary role and the primary database becomes a standby database. In this article i shall only focus on those relevant to the oracle9i database. The steps involve upgrading the logical standby database to the next release, running in a mixed mode to test and validate the upgrade, doing a role reversal. How to recover an expired user account in oracle database.
This technical paper assumes that there is an existing rac primary database with two instances. Oracle data guard 10g release 2 switchover and failover best practices. In the oracle odbc driver configuration dialog box, type a dsn to use with view composer, a description of the data source, and a user id to connect to the database. At a high level, automating client failover in a data guard configuration includes relocating database services to the. On standby server, create all required directories for dump and archived log destination. We will configure a standby for a nonmultitenant database. Configure data guard faststart failover step by step. Still, this exercise provide a degree of familiarity with data guard.
Dataguard architecture and its components in oracle 11g. Using recovery manager with oracle data guard in oracle10g. Standard edition, standard edition one, and enterprise edition. All systems in this configuration must run an oracle.
Step by step configuration 10g dataguard step by step process of configuring oracle 10gr2 10. Step by step physical standby database configuration in 12c. Oracle database 11g release 2 data guard setup using oracle grid control. This article entirely written on oracle database 12c. Set the send and receive buffer sizes at either the value you calculated or 10. Data guard physical standby setup using the data guard broker in oracle database 11g release 2. Subsequent sections provide detailed configuration steps for enabling oci and. No need to change client connection configuration if cluster changes. Environment server database name production primary 172. Using recovery manager with oracle data guard in oracle database 10g page 4. If you configured an oracle database user id with specific security permissions, specify this user id. For example microsoft windows 64bit itanium on primary and microsoft windows 32bit or microsoft windows 64bit for amd on standby database.
Switchover allows the primary database to switch roles with one of its standby databases. A data guard based configuration consists of one primary database and from one to nine standby databases see figure 2. Initially configuring oracle data guard software oracle solaris. Restoration requires multiple steps including storing the backup locally on. Setting the data protection mode of a data guard configuration. Oracle data guard supports two role transition operations. Configuring a disaster recovery solution oracle docs.
This article gives an example of the setup and administration of data guard using the data guard broker. Dataguard on different operating systems oracle blog. Oraclebase oracle database 11g release 2 data guard. Enabling encryption for data guard redo transport oracle. Data guard for manual failover, step by step oracle.