Methods of sudden power off recovery may include reading dirty-block meta-pages from memory blocks on a dirty block list, recording mapping in formation in open-block meta-pages, serving host commands by looking up logical block addresses (LBAs) in the dirty-block meta-pages and the open-block meta-pages and when an LBA is not found in the dirty-block meta-pages and the open-block meta-pages, reading new mapping information from a dirty table and saving the new mapping information in host-write meta-pages.