Our Applications Technology Group database architects have released two new documents covering the use of Oracle Data Guard to create physical standby databases for Oracle E-Business Suite environments:
What is a Standby Database?
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 in Data Guard
There are three types of standby databases:
Provides a physically identical copy of the primary
database, with on-disk database structures that are identical to the
primary database on a block-for-block basis. The database schema,
including indexes, are the same. A physical standby database is kept
synchronized with the primary database by recovering the redo data
received from the primary database.
the same logical information as the primary database, although the
physical organization and structure of the data can be different. It is
kept synchronized with the primary database by transforming the data in
the redo logs received from the primary database into SQL statements and
then executing the SQL statements on the standby database.
A fully updatable standby database. Like a physical or
logical standby database, a snapshot standby database receives and
archives redo data from a primary database. Unlike a physical or logical
standby database, a snapshot standby database does not apply the redo
data that it receives.
These new notes detail the steps
for setting up the first of these types, a Physical Standby database
using Oracle Data Guard.
New EBS Roadmap documentations, too
Our Applications Technology Group
database architects have also released two new roadmap documents
covering the latest options for High Availability, Real Application
Clusters, and Maximum Availability Architectures: