18 Copyright © Oracle Corporation, All rights reserved. Workshop

18-2 Copyright © Oracle Corporation, All rights reserved. Objectives After completing this lesson, you should be able to do the following: Document a database configuration by using a Database Configuration Worksheet Recover data while minimizing down time and data loss Use database tools and features to monitor and improve database performance

18-3 Copyright © Oracle Corporation, All rights reserved. Workshop Methodology Team-oriented and interactive Tools used to keep the database performance at specified levels Hands-on diagnosis and problem resolution for a variety of failure scenarios Multiple solutions possible for each scenario Develop troubleshooting and administration skills

18-4 Copyright © Oracle Corporation, All rights reserved.

18-5 Copyright © Oracle Corporation, All rights reserved. Business Requirements Twenty-four hour availability Peak usage varies across all time zones Daily backups are required Complete database recovery is required

18-6 Copyright © Oracle Corporation, All rights reserved. Database Configuration Archiving is enabled Log files are mirrored and distributed across multiple devices Control files are mirrored and distributed across multiple devices Flashback Database is enabled Database performance thresholds set to meet business requirements Full backup of the database exists, including archive log files

18-7 Copyright © Oracle Corporation, All rights reserved. Simulated Application One or more jobs will be scheduled to simulate application users. The jobs will run queries and DML operations against application tables. Some scenarios may use sessions spawned through shell scripts.

18-8 Copyright © Oracle Corporation, All rights reserved. Method for Resolving Database Issues Phase I: Diagnose the problem Phase II: Determine the appropriate method to resolve the problem Phase III: Resolve the problem Phase IV: Back up the database, if needed

18-9 Copyright © Oracle Corporation, All rights reserved.

18-10 Copyright © Oracle Corporation, All rights reserved. Summary Instructor-facilitated workshop Team-oriented Hands-on approach Use tools and diagnostics to: –Monitor database performance –Identify problems and potential problems Minimize down time and data loss

18-11 Copyright © Oracle Corporation, All rights reserved. Practice 18 Overview: Workshop Setup This practice covers the following topics: Restore the database to a previous point in time Perform a physical investigation of the database: –Use the Enterprise Manager Database Control Console –Use views and tools –View command output and log files –View trace files and the alert log Modify the database configuration to meet business requirements Resolve typical database administrative issues

18-12 Copyright © Oracle Corporation, All rights reserved. Practice 18 Workshop Setup

18-13 Copyright © Oracle Corporation, All rights reserved.

18-14 Copyright © Oracle Corporation, All rights reserved.

18-15 Copyright © Oracle Corporation, All rights reserved. Workshop Scenario 1

18-16 Copyright © Oracle Corporation, All rights reserved. Workshop Scenario 2

18-17 Copyright © Oracle Corporation, All rights reserved. Workshop Scenario 3

18-18 Copyright © Oracle Corporation, All rights reserved. Workshop Scenario 4

18-19 Copyright © Oracle Corporation, All rights reserved. Workshop Scenario 5

18-20 Copyright © Oracle Corporation, All rights reserved. Workshop Scenario 6