F2FS

Also known as Flash-Friendly File System

F2FS (Flash-Friendly File System) is a flash file system initially developed by Samsung Electronics for the Linux kernel.

Key facts

Filesystem.name: F2FS
Filesystem.developer: Samsung Electronics, Motorola Mobility, Huawei and Google
Filesystem.full_name: Flash-Friendly File System
Filesystem.introduction_date: v3.8, 2012-12-20
Filesystem.introduction_os: Linux
Filesystem.directory_struct: multi-level hash table
Filesystem.file_struct: bitmap (free space), table
Filesystem.max_file_size: 3.94 TB with 4K blocks, 16 TB with 16K blocks
Filesystem.max_files_no: Depends on volume size
Filesystem.max_filename_size: 255 bytes
Filesystem.max_volume_size: 16 TB with 4K blocks, 64 TB with 16K blocks
Filesystem.dates_recorded: modification (mtime), attribute modification (ctime), access (atime)
Filesystem.date_resolution: 1 ns
Filesystem.attributes: POSIX, extended attributes
Filesystem.file_system_permissions: POSIX, ACL
Filesystem.compression: LZO, LZ4 (since Linux 5.6), zstd (since Linux 5.7)
Filesystem.encryption: Yes
Filesystem.OS: Linux and Android

via Wikipedia infobox

Wikidata facts

Official website: f2fs.wiki.kernel.org

Show 2 more facts

inception: 2012-08-03
name: Flash-Friendly File System

Sources (2)

via Wikidata · CC0

~24 min read

Article

15 sections

Contents

Features
Design
On-disk layout
Metadata structure
Index structure
Directory structure
Default block allocation
Cleaning process
Adoption
Phone manufacturers
Linux distributions
Detailed features description
See also
References
External links

F2FS (Flash-Friendly File System) is a flash file system initially developed by Samsung Electronics for the Linux kernel.

The motive for F2FS was to build a file system that, from the start, takes into account the characteristics of NAND flash memory-based storage devices (such as solid-state disks, eMMC, and SD cards), which are widely used in computer systems ranging from mobile devices to servers.