[clue] generations of file systems

Dennis J Perkins dennisjperkins at comcast.net
Sun Mar 24 21:35:54 MDT 2019


Jim Salter has an interesting article abut this on Ars Technica.

Generation 0: No system.  Just n aritrary stream of data on punchcards,
cassettes, tape, etc.

Generation 1: Early filesystems without directories or metadata.  CP/M,
Apple DOS, etc.

Generation 2: Directories added to better handle the amount of storage
space on hard drives.  MS-DoS 2.0.

Generation 3: Metadata.  Unix, Macintosh.

Generation 4.  Journaling.  Ext3, NTFS, etc.

Generation 5: CoW , built-in volume management, per-block checksums,
self-healing arrays.  ZFS, Btrfs, ReFS.  Maybe Bcachefs and Stratis?



More information about the clue mailing list