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Business Continuity for EBS Using Oracle 11g Physical Standby DB

By Steven Chan (Oracle Development) on Mar 29, 2010

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:

Business Continuity for Oracle E-Business Release 12 Using Oracle 11g Physical Standby Database (Note 1070033.1)

Business Continuity for Oracle E-Business Release 11i Using Oracle 11g Physical Standby Database (Note 1068913.1)

Business Continuity for EBS Using Oracle 11g Physical Standby DB (Oracle E-Business Suite Technology) https://blogs.oracle.com/stevenChan/entry/oracle_data_guard_11g_ebs

1 of 7 4/5/2012 11:50 PM

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 configuration.

There are three types of standby databases:

Physical Standby

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.

Logical Standby

Contains 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.

Snapshot Standby

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:

Oracle E-Business Suite Release 11i High Availability Documentation Roadmap (Note 1072807.1)

Oracle E-Business Suite Release 12 High Availability Documentation Roadmap (Note 1072636.1)


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Related Articles

Maximum Availability Architecture: Oracle E-Business Suite Release 12

Comparing Oracle Data Guard vs. Active Data Guard for EBS Environments

Three Options for Scaling Up E-Business Suite for Reporting

Category: Oracle

Tags: 11i 12 certifications database ebs

Permanent link to this entry

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Comments:

Hello Mr. Steven,

We recently configured our eBusiness Suite 11i with Physical Standby DB. I would like to know if you can guide us with a procedure to apply application

patches with minimal time.

The EBS (Financial) version is 11.5.9 and the Database version is 9.2.0.8. All the tiers (DB, App server, Forms/Reports services) are installed in one box.

The remote Site is about 750km away.

So far, what we plan to do is :

1. Shutdown the standby site.

2. DEFER the log_archive_dest_2.

3. Apply the patch to main site.

4. Clone the main site (Involves backup).

5. Restore at standby site.

6. Reconfigure dataguard.

As you can see the downtime is very high. Any advice ?

Thanks in advace,


3 of 7 4/5/2012 11:50 PM

Francisco Tejeda

Posted by Francisco Tejeda on September 21, 2010 at 05:49 AM PDT #

Hello, Francisco,

My apologies for the delay in responding to this. Your question got swallowed by my post-OpenWorld backlog.

Note 216212.1 discusses patching EBS after implementing a DR configuration; I'd recommend reviewing that document in detail.

Regards,

Steven

Posted by Steven Chan on October 15, 2010 at 07:54 AM PDT #

Hello Steven -

Can you provide any guidance into the use of Data Guard Broker with EBS 11i? I am currently trying to configure Data Guard for an EBS instance and I am

running OEM 11g and would like to use Data Guard Broker for the management of the 2 instances.

I have heard that this may not be certified - is that the case?

Thanks...

Brenna

Posted by Brenna Galbraith on November 12, 2010 at 06:34 AM PST #

Hello, Brenna,

The use of Data Guard Broker with the E-Business Suite isn't explicitly certified but it is supported for use. In other words, it's technically-feasible to use this

set of tools with the E-Business Suite, but we don't publish E-Business Suite-specific documentation for that configuration, since it's not needed The generic

Data Guard Broker documentation should suffice.

You should note that the automatic failover doesn't work with E-Business Suite environments, since you need to run AutoConfig before bringing a standby

database online. But as long as you set up your init.ora settings as per the documentation linked above, you can configure and monitor using the Data Guard

Broker tools.

Best of luck with your implementation. I'd be interested in hearing about your experiences with this tool; please feel free to drop me a line when you've got

this running.


4 of 7 4/5/2012 11:50 PM

Regards,

Steven

Posted by Steven Chan on November 12, 2010 at 10:55 AM PST #

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