Subject: Re: LFS v2 layout
To: Jesse Off <joff@gci-net.com>
From: Manuel Bouyer <bouyer@antioche.lip6.fr>
List: tech-kern
Date: 12/07/2000 21:30:04
On Thu, Dec 07, 2000 at 07:05:27PM -0700, Jesse Off wrote:
> >
> > Did you have any though at snapshots ? This is a functionality peoples
> > may want, and which, at very quick view, seems easier to do with LFS
> > and FFS.
> 
> This can actually be done right now entirely in userland with lfs_cleanerd
> magic.
> It requires no changes to the LFS data layout or kernel code at all.  Thats
> one
> of the beauties of LFS and the userland cleaner. :-)  Things like this can
> be
> implemented entirely in userspace and without filesystem design tweaks.
> 
> Theres lots of cool things we can do with our userland cleaner.
> We could also do something that automatically archives old segments to tape
> before
> they are remarked clean by the cleaner.  With this we would be able to
> continuously
> backup the filesystem, and become able to backup almost every individual
> change
> rather than periodically snapshoting and archiving. i.e. versioning, but for
> the entire filesystem.
> Again, this could be done with 0 changes to the kernel + LFS format and
> implementable
> entirely in userland.

Wow, this would be a very cool feature to have, including from a marketing
POW !

--
Manuel Bouyer <bouyer@antioche.eu.org>
--