Architecture¶ This chapter provides an in-depth look into the architecture of FAL. Overview Folders Processed files Database structure sys_file sys_file_metadata sys_file_reference sys_file_processedfile sys_file_collection sys_file_storage sys_filemounts Components Files and folders File references Storage Drivers The file index Collections Services PSR-14 events \TYPO3\CMS\Core\Resource\ResourceStorage \TYPO3\CMS\Core\Resource\StorageRepository \TYPO3\CMS\Core\Resource\Index\FileIndexRepository \TYPO3\CMS\Core\Resource\Index\MetaDataRepository \TYPO3\CMS\Core\Resource\Service\FileProcessingService \TYPO3\CMS\Core\Utility\File\ExtendedFileUtility