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September 2007 Archives

September 2, 2007

Oracle RAC on Linux Conference - Sep 4 - Tel Aviv

RAC, ASM and Linux: Configuration, Monitoring/Managing and Extended RAC configurations, and a Successfull implementation report are the topics of the conference of the RAC on Linux Forum to be held on September 4 at the Sheraton Hotel in Tel Aviv  


If you are around I will be happy to see you there, the conference is free, you can register at the Oracle Israel, events page


You can download my presentation here "Rac on Linux Configuration"  This presentation was compiled and adapted by myself from presentations by various Oracle colleagues.


This is the Conference schedule:

























14:00 � 14:30 Welcoming
14:30 � 14:40 Opening words
14:40 � 15:30 Configuration & Installation Best Practices - Alejandro Vargas, Oracle Corporation.
15:30 � 16:15 Monitoring & Management Best Practices - Ofir Manor, Oracle Israel.
16:15 � 16:45 Coffee Break
16:45 � 17:30 Scalability Best Practices - Annie Flint, Oracle Corporation.
17:30 � 18:15 Customer Success: Bank Mizrahi Multi Node DW Implementation - Itamar Tadmor, Iteam.


The speakers:


Alejandro Vargas is a Senior DBA at Oracle Israel and a RAC enthusiast :-)
Ofir Manor is a Senior Consultant at Oracle Israel and an excellent speaker.
Annie Flint is a Senior Consultant with the Oracle RAC Pack group, and a world class RAC expert.
Itamar Tadmor is a Senior DBA and Team Leader with many years of experience.


See you there!


 


 


 


 

September 19, 2007

Data Guard or Storage Snapshots?

Customer sites often choose storage related technologies to ensure recoverability for large databases. I've been involved several times in recovering production databases from a BCV or SRDF backup. Mounting the storage copy back on the production server was done usually in about 30 minutes, after a period of deciding what to do that could take another 30 minutes to 1 hour. Then we needed to apply the relevant redo logs, that required a time that sometimes was of several hours.

In my opinion, for sites requiring maximum availability storage snapshots do not provide the best high availability option.They are excellent for building up report databases that are refreshed every day, or for cloning test, QA, development or training databases from production.

10g Data Guard provides the most efficient environment for  disaster recovery, it can be configured in several ways to match different sets of requirements, and, together with RAC conforms the Maximum Availability Architecture, that ensure the maximum levels of service.

Configuration and management of Data Guard was made simple through the interface that Oracle Enterprise Manager Grid Control provides.

Still it can also be manually implemented and managed with some training.

Data Guard, Physical Standby Implementation, Step by Step

Although Enterprise Manager Grid Control provides the simplest way to implement Data Guard, in this post I'm presenting an exercise of manual implementation step by step.

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.

This exercise can be completed in a couple of hours if you have two servers with 10g Oracle homes already installed, the step by step guide can be downloaded here:

 

About September 2007

This page contains all entries posted to Alejandro Vargas' Blog in September 2007. They are listed from oldest to newest.

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Many more can be found on the main index page or by looking through the archives.

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