Folders are logical containers in which objects can be stored in a structured manner, similar to a file system. A bucket can contain folders at several levels, i.e. a folder can contain other folders. No properties or access permissions can be defined for folders. This is done using buckets and objects. The same naming conventions apply to folders as to objects. Once a folder has been created, it can no longer be renamed. Objects already uploaded cannot be moved to a newly created folder.