From owner-freebsd-fs Tue May 7 7:39:17 2002 Delivered-To: freebsd-fs@freebsd.org Received: from sluis.cs.vu.nl (sluis.cs.vu.nl [130.37.192.174]) by hub.freebsd.org (Postfix) with ESMTP id C0FB037B403 for ; Tue, 7 May 2002 07:39:04 -0700 (PDT) Received: from centaur.cs.vu.nl (centaur.cs.vu.nl [192.35.191.4]) by sluis.cs.vu.nl with esmtp (Smail #74) id m17567J-000OesC; Tue, 7 May 2002 16:39 +0200 Received: from cs.vu.nl (localhost [127.0.0.1]) by centaur.cs.vu.nl with esmtp (Smail #74) id m17567J-0014NkC; Tue, 7 May 2002 16:39 +0200 Message-Id: To: Terry Lambert Cc: fs@FreeBSD.ORG Subject: Re: Filesystem References: <200205040019.UAA13780@illustrious.cnchost.com> <3CD32F43.327CDA46@mindspring.com> <20020504041936.GA19646@quic.net> <3CD3FB02.3EC1DA29@mindspring.com> <20020505084827.GA3688@quic.net> <3CD6B71C.C0A502A1@mindspring.com> <3CD73907.7FEEA69E@mindspring.com> In-reply-to: Your message of "Mon, 06 May 2002 19:16:39 -0700 ." <3CD73907.7FEEA69E@mindspring.com> Date: Tue, 07 May 2002 16:39:01 +0200 From: Philip Homburg Sender: owner-freebsd-fs@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org In your letter dated Mon, 06 May 2002 19:16:39 -0700 you wrote: >Philip Homburg wrote: >> >#1 Binary backwards compatability with millions of installed >> > systems >> >> What kind backwards compatability? The usual Unix system calls are uneffecte >d >> (creat, open, link, unlink, getdents, etc.). >> Even then, it is user's choice to create large directories, the system >> just supports it. > >The ability to continue using my old disks with their old data >on them, without having to buy enough backup media that I can >back them up enough times I feel safe running the command >"newfs -new_directory_format" on them, and restoring from tape >(assuming I even trust this new format). Are you saying that, apart from licensing and implementation issues, the only problem is whether or not you can continue to use disks with old filesystems? Of course you can simply leave support for FFS and soft-updates in the kernel. You only convert filesystems if you expect significant benefits. Philip Homburg To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-fs" in the body of the message