With many features as discussed in this chapter, DB2's built-in planned and unplanned availability capabilities ensure that your business applications are available whenever you need them. Whether switching to a standby database server if an unexpected database failure occurs or carrying out online maintenance, DB2 makes sure all of your business applications remain available.

When defining a backup strategy, do not neglect planning for and testing your recovery from a backup image. It is a good practice to develop a recovery plan as part of the database development rather than after the first failure has occurred.