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Re: Filesystems (was My First Computer)



Peter Flass wrote:


CBFalconer wrote:


Glen wrote:


CBFalconer wrote:


Glen wrote:

... snip ...



I worked at a windows only PC shop for a very short time recently.  For
example some Windows PC hardware techs will not know what you mean if
you refer to the "filesystem".  They know "FAT", "FAT32", and "NTFS" but
they may not know a filesystem is a general concept that most OS have.
One guy was talking about Unix (which he probably has only read about
not used) and refered to the unix filesystem as "Unix NTFS"!!

God help him get a clue!  Unix predates NT by about two decades.  They
did not copy NTFS, NTFS copied unix.  [NTFS uses the same basic method
to access files as the standard unix machine does]



I have the impression that the unique thing about NTFS is the
database treatment of the filesystem proper, with 'transactions'
protecting the critical relationships.  At least according to what
I read about it six to eight years ago.

This explains, to me, why it is easy to provide r/o access to an
NTFS system, but hard to provide write access.


Nah... I've seen at least an ntfs go bad.  Its just a normal filesystem.

They do have a file system with transactions now.  They were not the
first to get this either.


Not according to Helen Custer in "Inside the Windows NT
Filesystem", 1994, ISBN 1-55615-660-X.  I have no direct
experience.



[not topposted due to user request]
AIX has had a "journaled file system" (JFS) for years, and I'd have to
assume they weren't the first.  It has recently been ported to OS/2.
I know :) 

I used to used to admin an AIX server... it did not crash

once.  Z-e-r-o times.  And this thing was doing some real work too.
IBM hates Microsoft so much that they actually wrote a JFS for linux. So now you can get a JFS for free. 

Glen.