Chapter 12. Preventing and Fixing Problems Overview of cache, data backup, and log concepts. Task on clearing the cache is covered. Part of the Drupal User Guide. 12.1. Concept: CacheFreeSite Building, Site Administration, Drupal 9, Drupal 8 More information 12.2. Clearing the CacheFreeSite Building, Site Administration, Drupal 9, Drupal 8 More information 12.3. Concept: Data BackupsFreeSite Building, Site Administration, Drupal 9, Drupal 8 More information 12.4. Concept: LogFreeSite Building, Site Administration, Drupal 9, Drupal 8 More information 12.5. Concept: Status ReportFreeSite Building, Site Administration, Drupal 9, Drupal 8 More information