From owner-freebsd-hackers Mon Sep 30 21:45:17 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id VAA25999 for hackers-outgoing; Mon, 30 Sep 1996 21:45:17 -0700 (PDT) Received: from parkplace.cet.co.jp (parkplace.cet.co.jp [202.32.64.1]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id VAA25986 for ; Mon, 30 Sep 1996 21:45:11 -0700 (PDT) Received: from localhost (michaelh@localhost) by parkplace.cet.co.jp (8.8.0/CET-v2.1) with SMTP id EAA23310; Tue, 1 Oct 1996 04:45:04 GMT Date: Tue, 1 Oct 1996 13:45:04 +0900 (JST) From: Michael Hancock To: Chris Csanady cc: hackers@freebsd.org Subject: Re: VPS mailing list, BSD interest? In-Reply-To: <199610010424.XAA01672@friley216.res.iastate.edu> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Mon, 30 Sep 1996, Chris Csanady wrote: > >> What, aside from extendable partitions, would LVM give us over CCD? > > > >The ability to resize partitions in itself is worthwhile. > > > >JFS or VXFS-like, metadata logging for increased robustness and faster > >reboots without the need for fsck in regular operation would also be nice. > > This would be nice. Terry Lambert mentioned that he had implemented a read only > version of JFS, perhaps this would be a good start? > > Does JFS also use linear directory structures though? I noticed while reading through > some docs on XFS, that it implemented directories as b-trees. Im not quite sure how > one would implement this, but it sure seems like it would be a win.. NTFS also uses b-trees. Actually it uses a linear directory structure for small directories and b-trees for larger directories. This optimization reminds me of the direct inode/indirect inode scheme used in FFS. Regards, Mike Hancock