From owner-freebsd-arch Mon Jun 10 22: 2:13 2002 Delivered-To: freebsd-arch@freebsd.org Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by hub.freebsd.org (Postfix) with ESMTP id 3C69537B400; Mon, 10 Jun 2002 22:02:10 -0700 (PDT) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.12.3/8.12.2) with ESMTP id g5B50eV7015244; Tue, 11 Jun 2002 07:00:41 +0200 (CEST) (envelope-from phk@critter.freebsd.dk) To: Gordon Tetlow Cc: arch@FreeBSD.org Subject: Re: Statement of architectural direction: disklabel64 / GPT. In-Reply-To: Your message of "Mon, 10 Jun 2002 16:36:15 PDT." Date: Tue, 11 Jun 2002 07:00:40 +0200 Message-ID: <15243.1023771640@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-freebsd-arch@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message , Gordon Tetl ow writes: >On Mon, 10 Jun 2002, Poul-Henning Kamp wrote: > >> The GPT handles 16k partitions, 64 bit addressing, has decently >> checksummed and redundant meta-data and space for per partition >> meta-data. > >So it has a place to stash data suitable for GEOM mirror partitions and >other "special" things that need to keep some meta-data about their >operations? I generally belive that such meta-data should be in the partition so people don't get surprised that dd if=/dev/da0p1 of=/dev/da1p7 bs=1m doesn't do what they want. So while the answer to your question technically is "yes", I belive we shouldn't use that space unless we have a very good reason. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message