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Oracle 11g R1/R2 Real Application Clusters Essentials

You're reading from   Oracle 11g R1/R2 Real Application Clusters Essentials Design, implement, and support complex Oracle 11g RAC environments for real world deployments

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Product type Paperback
Published in May 2011
Publisher Packt
ISBN-13 9781849682664
Length 552 pages
Edition 1st Edition
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Table of Contents (20) Chapters Close

Oracle 11g R1/R2 Real Application Clusters Essentials
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. High Availability FREE CHAPTER 2. Oracle 11g RAC Architecture 3. Clusterware Installation 4. Automatic Storage Management 5. Managing and Troubleshooting Oracle 11g Clusterware 6. RAC Database Administration and Workload Management 7. Backup and Recovery 8. Performance Tuning 9. Oracle 11g Clusterware Upgrade 10. Real-world Scenarios 11. Enabling RAC for EBS 12. Maximum Availability Additional Resources and Tools for the Oracle RAC Professional Index

New ASM features and RAC


There are many new features in Oracle 11g RAC that are introduced with ASM enhancements. Many of these involve ASM configuration.

New SYSASM privilege for Oracle 11g R1 ASM

Introduced in Oracle 11g R1, the SYSASM privilege allows you to separate the database operating system credentials from ASM credentials. This can be useful in today's era of auditing controls and compliance to fulfill requirements for Sarbanes Oxley (SOX), as well as to divide storage support between system administrators and DBA staff members.

For Oracle 11g, you should now use the SYSASM privilege instead of the SYSDBA privilege to connect to and administer an ASM instance. Although before Oracle 11g R2, you were still able to manage ASM from SYSDBA, it is not recommended. In the event that you still decide to use the SYSDBA privilege to connect to an ASM instance, Oracle will send a warning to the alert log file because commands that you run using SYSDBA privileges on an ASM instance are supposed...

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