文本描述
Objectives
After completing this lesson, you should be able to do the following:
Define requirements for a backup and recovery strategy
Articulate the importance of management concurrence for the strategy
Identify the components of a disaster recovery plan
List Oracle Server features in the context of high availability
Objectives
List the strengths of different database configurations for recoverability
Discuss the importance of testing a backup and recovery plan
Backup and Recovery Issues
Protect the database from numerous types of failures
Increase Mean-Time-Between-Failures (MTBF)
Decrease Mean-Time-To-Recover (MTTR)
Minimize data loss
Defining a Backup and Recovery Strategy
Business requirements
Technical requirements
Operational requirements
Management concurrence
Business Requirements
Mean-Time-To-Recover
Mean-Time-Between-Failure
Evolutionary process
Operational Requirements
24-hour operations
User and operator appreciation
Testing and validating backups
Technical Requirements
Resources: Hardware, software, manpower, and time
Physical image copies of the operating system files
Logical copies of the objects in the database
Database configurations
Transaction volume affects desired frequency of backups
Disaster Recovery Issues
How will your business be affected in the event of a major disaster?
Earthquake, flood, fire, or complete loss of machine
Malfunction of storage hardware or software
Loss of key personnel, such as the database administrator
Do you have a plan for testing your strategy periodically?
Do you perform the strategy tests?
Oracle Features
Oracle features for maintaining high availability of database include:
Oracle Parallel Server
Oracle FailSafe
Summary
In this lesson, you should have learned how to:
Develop a strategy dictated by business, operational, and technical requirements
Consider a test plan for a backup and recovery strategy
Constitute an effective strategy
Take advantage of new Oracle8i features for availability