To protect the data in your Rational DOORS database against the failure of the disk on which it is stored, take regular backups of the disk. For Rational DOORS data, you can do full or differential backups. If you do differential backups, make sure that you do a full backup at least once a week. Do not use incremental backups. Restoring data from incremental backups requires complex steps to restore previous backups. If there is a disk hardware error, you can restore the entire disk from your backups.
If you are using Rational DOORS Web Access with Rational Insight or TRS consumer applications, such as IBM Rational Engineering Lifecycle Manager, back up the Derby database that is used with the integration when you back up your Rational DOORS database. The default location for the Derby database is C:\Program Files\IBM\Rational\DOORS Web Access\9.version\server\festival\derby\. If you need to restore your Rational DOORS database, restore the Derby database at the same time to ensure data consistency.
You can create Rational DOORS archives of entire projects, individual modules, and the user and group list.