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Oracle Tips by Burleson |
Oracle Dataguard
Chapter 1 -
Introduction to Oracle Data Guard
Oracle 8i enhancement
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The restructuring of the RAC Grid so
that it could be opened for queries and reporting; thus, reducing
some load on the primary database. During this period, the archived
redo logs will be transferred from the primary site to a standby
site and will be applied when the database is put back in recovery
mode.
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The Recovery MANager (RMAN) could
be used to back up the standby database, which can then be used for
recovery of the primary database using the traditional
backup/recovery method. Up to four standby databases could be
configured in managed recovery mode.
The next section will introduce the Oracle9i
Data Guard feature.
Introduction to Oracle9i Data Guard
Each of the two Releases of Oracle9i offered
improvements that represented advancements in database technology.
A summary of the changes is presented below.
Enhancements in Release 1
In Release 1 of Oracle 9i, RAC Grid
technology was renamed to Data Guard technology and Data Guard
Broker was introduced. Data Guard Broker is a distributed management
framework which simplifies the configuration and management of the
Data Guard configuration.
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