From owner-freebsd-fs Tue Oct 24 11:35:43 1995 Return-Path: owner-fs Received: (from root@localhost) by freefall.freebsd.org (8.6.12/8.6.6) id LAA25410 for fs-outgoing; Tue, 24 Oct 1995 11:35:43 -0700 Received: from serv05.slac.stanford.edu (SERV05.SLAC.Stanford.EDU [134.79.16.135]) by freefall.freebsd.org (8.6.12/8.6.6) with ESMTP id LAA25400 for ; Tue, 24 Oct 1995 11:35:41 -0700 Received: from mailbox.SLAC.Stanford.EDU by SERV05.SLAC.STANFORD.EDU (PMDF V5.0-4 #10979) id <01HWTFBIU5T0000J34@SERV05.SLAC.STANFORD.EDU>; Tue, 24 Oct 1995 11:35:58 -0800 (PST) Received: from sunreine.SLAC.Stanford.EDU (SUNREINE.SLAC.Stanford.EDU [134.79.113.77]) by mailbox.SLAC.Stanford.EDU (8.6.11/8.6.11) with ESMTP id LAA11658; Tue, 24 Oct 1995 11:35:26 -0700 Received: from LOCALHOST.Stanford.EDU (LOCALHOST.Stanford.EDU [127.0.0.1]) by sunreine.SLAC.Stanford.EDU (8.6.11/8.6.11) with SMTP id LAA16495; Tue, 24 Oct 1995 11:35:25 -0700 Date: Tue, 24 Oct 1995 11:35:23 -0700 (PDT) From: Tom Pavel Subject: Re: WORM fs In-reply-to: "Your message of Mon, 23 Oct 1995 13:48:03 PDT." <199510232048.NAA20491@aslan.cdrom.com> To: "Justin T. Gibbs" Cc: Peter Dufault , freebsd-fs@FreeBSD.org Message-id: <199510241835.LAA16495@MAILBOX.SLAC.Stanford.EDU> X-Organization: Stanford Linear Accelerator Center X-Envelope-to: freebsd-fs@FreeBSD.org MIME-version: 1.0 X-Mailer: exmh version 1.5.3 12/28/94 Content-type: text/plain; charset="us-ascii" Content-transfer-encoding: 7BIT X-Authentication-warning: sunreine.SLAC.Stanford.EDU: Host LOCALHOST.Stanford.EDU didn't use HELO protocol Sender: owner-fs@FreeBSD.org Precedence: bulk >>>>> On Mon, 23 Oct 1995, "Justin T. Gibbs" write s: > >Are any of the working file systems appropriate for a WORM drive > >for an archival application? > > > >I would like to be able to mount the file system and search through > >the files in the usual manner. It can be unmounted for writing. > > LFS would suit this task well, but it doesn't work in -current. I'm not sure what the problems with LFS in FreeBSD-current are, but just for general info in case people weren't aware, there was a lot of work on LFS for BSD4.4 done by Margo Seltzer and co. You can find a discussion of various related issues in: http://das-www.harvard.edu/users/faculty/Margo_Seltzer/usenix.195.html and you can get the mods to the LFS sources in : ftp://virtual.harvard.edu/pub/margo/usenix.195/lfs.tar.gz The papers are interesting reading, as is Ousterhout's response. I haven't actually checked, but my understanding is that these mods have not been worked into either the FreeBSD or NetBSD kernels. If that is correct, then they would probably provide a good starting point for someone to get LFS working. For what it's worth, Tom Pavel Stanford Linear Accelerator Center pavel@slac.stanford.edu http://www.slac.stanford.edu/~pavel/