YV Ravi Kumar - Oracle High Availability, Disaster Recovery, and Cloud Services: Explore RAC, Data Guard, and Cloud Technology

Any source code or other supplementary material referenced by the author in this book is available to readers on GitHub via the books product page, located at www.apress.com/978-1-4842-4350-3 . For more detailed information, please visit www.apress.com/source-code .

I am grateful to God who gave us all the strength, courage, perseverance, and patience in this sincere and honest attempt of knowledge sharing. This second book of mine would not have been possible without the following people:

Shri Yenugula Venkata Pathi and Smt. Yenugula Krishna Kumari, my parents, instilled in me good thoughts and values. My uncle Shri K L Janardhan Rao (Tallapudi, AP) always encouraged me to work hard and be a step ahead in learning new things.

B. Suresh Kamath (founder of LaserSoft and Patterns), my mentor, my guru, my strength, and my guide, has inspired me for the last 21 years. He is an immensely talented and technically sound individual. He taught me how to be well-read with no compromises. He led by example in being content yet hungry of knowledge. He motivated me to go that extra mile in attempting and experimenting with newer technologies/environments and in being regularly out of my comfort zone.

Anitha Ravi Kumar, my wife, was immensely tolerant with me. Behind every successful man, there is a good woman, as they say. I believe she is the embodiment of this well-known belief. Special thanks to my daughter, Sai Hansika, and my son, Sai Theeraz, for giving me time to write a second book.

I would like to thank Arup Nanda for accepting to be the technical reviewer for this book.

I would like to thank two people (Sateesh Prabakaran, SVP, and Puneet Dham, VP) from Raymond James Financial Inc. who extended their support in giving me expertise on the production side of Oracle engineered systems (Oracle Exadata, ODA, and ZFS systems).

Thanks to Mariami Kupatadze (senior solutions architect at FlashGrid Inc.) for excellent support when writing the Oracle sharding chapter.

Special thanks to two people, Jonathan Gennick (assistant editorial director) and Celestin Suresh John (senior manager, editorial acquisition), at Apress for giving me an opportunity to write a second book.

Thank you to the reader for picking up this book. We have attempted to be as simple and straightforward as possible when sharing this knowledge, and we truly believe that it will help you to steadily deep dive into various interesting concepts and procedures.