Book Image

Oracle Database 11g : Underground Advice for Database Administrators

By : April Sims
Book Image

Oracle Database 11g : Underground Advice for Database Administrators

By: April Sims

Overview of this book

Today DBAs are expected to deploy and manage large databases with quality service and little to no downtime. The DBA's main focus is on increasing productivity and eliminating idle redundancy throughout the enterprise. However, there is no magic set of best practices or hard and fast rules that DBAs need to follow, and this can make life difficult. But if DBAs follow some basic approaches and best practices, tasks can be performed more efficiently and effectively.This survival guide offers previously unwritten underground advice for DBAs. The author provides extensive information to illuminate where you fit in, and runs through many of the tasks that you need to be watchful of, extensively covering solutions to the most common problems encountered by newcomers to the world of Oracle databases.The book will quickly introduce you to your job responsibilities, as well as the skills, and abilities needed to be successful as a DBA. It will show you how to overcome common problems and proactively prevent disasters by implementing distributed grid computing—scalable and robust—with the ability to redeploy or rearchitect when business needs change. Reduce downtime across your enterprise by standardizing hardware, software, tools, utilities, commands, and architectural components.This book will also help you in situations where you need to install Oracle Database 11g or migrate to new hardware making it compliant with a Maximum Availability Architecture. By the end of this book you will have learned a lot and gained confidence in your abilities. You will be armed with knowledge as to which tools are best used to accomplish tasks while proactively moving towards an automated environment.
Table of Contents (14 chapters)
Oracle Database 11g—Underground Advice for Database Administrators
Credits
About the author
About the reviewers
Preface
Index

Database upgrade methods


As stated earlier in Chapter 2, there is a MOS document called Oracle 11gR2 Upgrade Companion [see ID 785351.1], which I personally think is a misleading title. It implies that this is a utility of sorts, but it is only a very long document on everything you would ever want to know about upgrading. It applies to every installation type (see the following list of configurations, this is the same list mentioned in Chapter 2 in the Recommended Patches section) and can be very confusing to new DBAs.

Targeted configurations in the upgrade companion:

  • Generic

  • Real Application Clusters and CRS

  • Data Guard (and/or Streams)

  • Exadata

  • Oracle e-business suite

The upgrade companion seems to be a document taking all of the possible things that could go wrong with an upgrade all bundled up in one place. I would recommend downloading the companion, and copying all of the text in a document to which you can then add comments or amend as needed. Take out the information that doesn't apply to...