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| Developer(s) | Apple Inc. |
|---|---|
| Full name | Apple File System |
| Introduced | March 27, 2017 (iOS), September 25, 2017 (macOS), with iOS 10.3, macOS 10.13 |
| Preceded by | HFS Plus |
| Partition IDs | 7C3457EF-0000-11AA-AA11-00306543ECAC (GPT) |
| Structures | |
| Directory contents | B-tree[1] |
| Limits | |
| Max file size | 8 EB (9,223,372,036,854,775,808 bytes)[2] |
| Max no. of files | 9,223,372,036,854,775,808[2] |
| Allowed filename characters | Unicode 9.0 encoded in UTF-8[3] |
| Features | |
| Dates recorded | access, attributes modified, contents modified, created |
| Date range | January 1, 1970 – July 21, 2554[1] |
| Date resolution | 1 ns[2] |
| File system permissions | Unix permissions, NFSv4 ACLs |
| Transparent compression | Partial (decmpfs)[4] |
| Transparent encryption | Yes[5] |
| Copy-on-write | Yes[3][5] |
| Other | |
| Supported operating systems | macOS, iPadOS, iOS, tvOS, watchOS |
Apple File System (APFS) is a proprietary file system developed and deployed by Apple Inc. for macOS Sierra (10.12.4)[6] and later, iOS 10.3, tvOS 10.2,[7] watchOS 3.2,[8] and all versions of iPadOS.[9][10] It aims to fix core problems of HFS+ (also called Mac OS Extended), APFS's predecessor on these operating systems. APFS is optimized for solid-state drive storage and supports encryption, snapshots, and increased data integrity, among other capabilities.[11][12]
- ^ a b Hansen, K.H.; Toolan, F. (September 21, 2017). "Decoding the APFS file system". Digital Investigation. 22: 107–132. doi:10.1016/j.diin.2017.07.003. ISSN 1742-2876.
- ^ a b c "Volume Format Comparison". Apple Developer. Retrieved May 25, 2018.
- ^ a b Cite error: The named reference
appleApfsFaq2018was invoked but never defined (see the help page). - ^ Bertin, René. "Compression and APFS". Github. Retrieved February 2, 2019.
- ^ a b Cite error: The named reference
appleFileSystemGuidewas invoked but never defined (see the help page). - ^ Vigo, Jesus (April 13, 2017). "How to set up and use Apple's APFS file system on macOS Sierra". TechRepublic.
- ^ "tvOS 10.2". What's New in tvOS. Apple Inc.
- ^ Cite error: The named reference
The Verge update todaywas invoked but never defined (see the help page). - ^ Roger Fingas (June 13, 2016). "'Apple File System' will scale from Apple Watch to Macs, replace HFS+". Apple Insider. Archived from the original on July 23, 2016.
- ^ Hutchinson, Lee (June 13, 2016). "Digging into APFS, Apple's new file system". Ars Technica UK. Retrieved June 15, 2016.
- ^ Cite error: The named reference
9to5Mac APFS announcedwas invoked but never defined (see the help page). - ^ Cite error: The named reference
Ars APFS spottedwas invoked but never defined (see the help page).