Subject: Re: log-structured file system
To: Chris G. Demetriou <uunet!!>
From: Chris G. Demetriou <cgd@postgres.Berkeley.EDU>
List: current-users
Date: 06/13/1994 12:07:00
> Minor nit: toe doesn't accept anonymous ftp connections anymore, you have to 
> use

that's what i get for puttering around on toe...  8-)

> The paper is pretty good; it does a reasonable job of explaining what a log-
> structured filesystem is and how it fits into BSD.  But from reading it, it
> seems that the EFS filesystem (FFS with clustering) is nearly as good as LFS
> for most things, if not better.

Correct.  FFS w/clustering is about the same speed as LFS (when the
cleaner is not running), and is faster when the cleaner is.  the 4.4
(and NetBSD) FFS has clustering.

LFS is good for transaction handling (though that code hasn't been
implemented yet), and for quick recovery, but since an lfsck hasn't
been written yet, LFS is for now a "test only" file system (assuming
you can even get it to work for you!).