 Minimizing Planned Outages
This paper describes several best practices for minimizing or even potentially eliminating planned database outages. An outage is any situation in which the database is unable to serve user requests, either completely as in the case of an offline database or partially as in the case of unacceptable performance. Planned outages can include activities such as routine database maintenance activities or upgrades to your database environment.
Outages have a direct impact on the availability of your database environment. Availability is a measure of a system's ability to serve user application requests. Some database environments can tolerate occasional interruptions in availability while others must be available around the clock. The availability strategy you choose, and the resources you spend to achieve your availability goals, should be driven by the needs of your business.
DB2 data server contains features that can help you eliminate some types of planned outages and reduce the impact of others. This paper will discuss those features as well as when and how to use them to help achieve a high level of availability.
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