[ros-dev] ReactOS File System

[Rick Langschultz]

I was reading about the Samba 4 implementation. It is embedded with  
an LDAP server that controls file ACLs that Windows Domain  
Controllers and Professional Systems implement. Through some serious  
hacking I bet a NT VFS over ZFS would make a great choice in file  
system. The file system allows for ACLs, rollback, and many other  
features which is an improvement over the FAT filesystem.
On Feb 14, 2006, at 8:41 PM, D. Hazelton wrote:

> On Tuesday 14 February 2006 17:46, Rick Langschultz wrote:
>> I have actually looked at the EXT2 and EXT3 file systems, and admire
>> them, however Reiser4 and ZFS are the best looking and they have
>> great specs such as file access time, etc. Also, ZFS supports many
>> things NTFS supports. Though I would love to have ReactOS support
>> things like lower level file system rollback, file junctions,
>> symlinks, etc...
>
> At this point Reiser4, to my knowledge (and from tracking it's  
> progress
> towards integration into the Linux kernel), is not ready for  
> production use.
> If you really want an NTFS style filesystem, I remember seeing the
> documentation behind OS/2's HPFS a long time ago...
>
> As anyone that has tracked the history of NT knows, NTFS started  
> from HPFS and
> diverged. (Hell, it even uses the same OS Id flag in the partition  
> table)
>
> One problem with implementing a filesystem like that is that you  
> can either go
> IBM's route where the OS periodically "cleans up" the filesystem  
> (and locks
> the machine in the process) or just do as M$ did and lose that  
> performance
> advantage.
>
> Truth be told, a *Nix style filesystem is simpler and cleaner. And  
> _most_ now
> have support for ACL's and other early advantages of NTFS. The only  
> problem
> with a Unix style filesystem is that each filesystem does have a  
> maximum
> number of files, though those limits are often hard to reach.
>
> In any event I have done some (though by all means not exhaustive)  
> research
> into filesystem design and am available to assist in any design  
> (though not
> coding) people might wish to do. If NTFS support is wanted in  
> ReactOS, the
> NTFS code in the Linux kernel does provide a good starting point. The
> read-only limitation Linux has is, IIRC, more related to the fact  
> that the
> VFS layer cannot properly handle the multiple simultaneous updates  
> needed to
> maintain consistency on an NTFS partition.
>
>> On Feb 14, 2006, at 4:02 PM, Jerry wrote:
>>> I've been wanting to try my hand at file systems too. Have you
>>> looked at ext2/3 for insporation?
>>>
>>> Rick Langschultz wrote:
>>>> I am writing a file system for personal development use for
>>>> reactos.  I want to take a poll about what File System features
>>>> that ReactOS  would like to implement in its distribution. Are
>>>> there any features  out there that ReactOS developers like to
>>>> implement in ReactOS. I  want to model the file system on NTFS but
>>>> i have been looking at  Sun's ZFS and think that it would be a
>>>> great File System for React...
> <snip>
>
> DRH
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