What is Data Guard in Oracle 12c?
Data Guard is Oracle 12c’s true disaster protection technology. In it, you have a minimum of two databases, primary and standby. Data Guard has options for multiple standby sites as well as an active-active configuration. By active-active, it means both/all sites are up, running, and accessible.
What is LNS and RFS in dataguard?
LNS process of primary database captures redo from redo log buffer. RFS process then writes that redo information to standby redo log files.
How does Oracle Data Guard work?
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 maintains these standby databases as transactionally consistent copies of the production database.
How do you implement Data Guard?
Use the following configuration best practices for Data Guard:
- Use Oracle Data Guard Broker with Oracle Data Guard.
- Use Recovery Manager to Create Standby Databases.
- Use Flashback Database for Reinstatement After Failover.
- Use FORCE LOGGING Mode.
- Use a Simple, Robust Archiving Strategy and Configuration.
How many standby databases we can create in 12c?
2 Standby Databases. A standby database is a transactionally consistent copy of the primary database. Using a backup copy of the primary database, you can create up to thirty standby databases and incorporate them into an Oracle Data Guard configuration.
What do you need to know about Oracle Data Guard?
Describes the Oracle Data Guard broker, a management and monitoring interface that automates many of the tasks involved in configuring and monitoring standby databases in an Oracle Data Guard configuration. Download As…
Is the documentation on Oracle Docs protected by intellectual property?
This software and related documentation are provided under a license agreement containing restrictions on use and disclosure and are protected by intellectual property laws.
Who are the end users of Oracle software?
U.S. GOVERNMENT END USERS: Oracle programs, including any operating system, integrated software, any programs installed on the hardware, and/or documentation, delivered to U.S. Government end users are “commercial computer software” pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations.