Oracle Technologies Blog

By ASKM

Physical Standby Switch Over Demo

Posted by Srikrishna Murthy Annam on September 16, 2010

This demo shows how to perform switch over operations for physical stand by operations.

One important point to remember:
Though the fact, that the previous Standby database became the primary afterwards applies to both variants – there are small differences which should for sure be considered. The most important is: After a FailOver there is no way to convert the former primary instance into a standby database for the new primary system: Due to the fact that both of them created redo information after the FailOver, they are completely out of sync, and in no way they can be synchronized again . The only possibility to get a new standby system again is to create it from the scratch.

After a SwitchOver, on the other hand, we have both, the primary and the standby system, available again as we had before. This means you should think twice before doing a FailOver.

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2 Responses to “Physical Standby Switch Over Demo”

  1. Hello SRIKRISHNA MURTHY,
    1st of all, I liked your blogs and your knowledge, you deserve more than this…I encourage you please continuing your blogs so that we feel proud to be a Indian.If you see Kamran blog on Oracle 11gr2 Installation, he did not miss a single step of screen screen shot. He wrote also in text form as well as screen shot.

    Please don’t personal;

    My suggesion, whatever you start topic, take a viewer as a layman i.e. as a beginer. Just from step by step so that viewer can implement after watching your video. Please don’t miss any step so that you can get popularity outside of India. I know you are working very hard and Its not easy to take out time from our busy schedule. I hope you can understand my thoughts.

    My good wishes with you.
    Thanks & Regards,
    Bhim Manhla
    Sr.Oracle DBA

  2. learnwithme11g said

    Hi Bhim , thanks so much for your feedback. I consider your suggestions. Recently i started Weblogic server and OEM with the same view that i need to start it from the basics.

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