[clue] generations of file systems

[Dennis J Perkins]

https://arstechnica.com/information-technology/2014/01/bitrot-and-atomic-cows-inside-next-gen-filesystems/


On Mon, 2019-03-25 at 09:51 -0600, Chris Fedde wrote:
> Link to article?
> 
> On Sun, Mar 24, 2019 at 9:36 PM Dennis J Perkins <
> dennisjperkins at comcast.net> wrote:
> > 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?
> > 
> > 
> > 
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