The actual storage structure depends on which driver each storage is based on. When using the local file system driver provided by the TYPO3 Core, a storage will correspond to some existing folder on the local storage system (for example, on the hard drive). Other drivers may use virtual structures.

By default, a storage pointing to the fileadmin/ folder is created automatically in every TYPO3 installation.

Processed files

Inside each storage there will be a folder named _processed_/ which contains all resized images, be they rendered in the frontend or thumbnails from the backend. The name of this folder is not hard-coded. It can be defined as a property of the storage. It may even point to a different storage.

Special properties in the "Access capabilities" tab of a File storage