Advanced Format

Advanced Format (AF)
Advanced Format 512e logo
Generation-one standard
4096 (4 KiB) bytes per sector
Generation-one categories
512 emulation (512e)4K physical sectors on the drive media with 512 byte logical configuration
4K native (4Kn)4K physical sectors on the drive media and 4K configuration reported to the host
4K-ready host[1]A host system which works equally well with legacy 512 as well as 512e hard disk drives
Year standard completed
March 2010
Created by
IDEMA Long Data Sector Committee, composed of Dell, Fujitsu (now Toshiba Storage Device Corporation), Hewlett-Packard, Hitachi Global Storage Technologies, IDEMA, LSI Corporation, Maxtor (now Seagate), Microsoft, Phoenix Technologies, Samsung, Seagate Technology, Western Digital

Advanced Format (AF) is any disk sector format used to store data on magnetic disks in hard disk drives (HDDs) that exceeds 528 bytes per sector, frequently 4096, 4112, 4160, or 4224-byte sectors. Larger sectors of an Advanced Format Drive (AFD) enable the integration of stronger error correction algorithms to maintain data integrity at higher storage densities.

  1. ^ "Advanced Format Definitions, Abbreviations, and Conventions". IDEMA. Archived from the original on 2012-03-16. Retrieved March 13, 2012.