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

RMAN binary, virtual/catalog, and database


The RMAN executable version (binary) should be the same as the target database. This dictates using the same ORACLE_HOME to run RMAN scripts. Most sites with multiple databases connect to a remote RMAN repository catalog database. The RMAN repository catalog schema version must be greater than or equal to the RMAN executable with the built-in backward compatibility for earlier releases. Upgrade the catalog using RMAN commands as follows:

This will not upgrade the database that houses the RMAN catalog to 11g. This upgrades the RMAN schema to be compatible with the higher release of RMAN. Upgrading the catalog allows you to backup any other 11g databases as well as previous versions. You can go ahead and also upgrade the RMAN catalog repository database to 11g at this point, using any of the standard methods: DBUA, EXP/IMP, EXPDP/IMPDP, Transportable Tablespaces, or a Manual Upgrade.

The RMAN catalog database should not be housed in the same place as...