From owner-freebsd-hackers@FreeBSD.ORG Sun Nov 9 03:45:40 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 97B3516A4CE; Sun, 9 Nov 2003 03:45:40 -0800 (PST) Received: from ferengi.borderworlds.dk (borderworlds.dk [62.79.110.124]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1F23C43FDF; Sun, 9 Nov 2003 03:45:39 -0800 (PST) (envelope-from xi@borderworlds.dk) Received: from borg.borderworlds.dk (localhost [127.0.0.1]) by ferengi.borderworlds.dk (Postfix) with ESMTP id 6951A5C21; Sun, 9 Nov 2003 12:45:35 +0100 (CET) Received: by borg.borderworlds.dk (Postfix, from userid 1001) id 7D83CB823; Sun, 9 Nov 2003 12:45:34 +0100 (CET) Sender: xi@borderworlds.dk To: David Schultz References: <20031109003617.K626@korben.in.tern> <20031109023041.GA9171@VARK.homeunix.com> From: Christian Laursen Date: 09 Nov 2003 12:45:34 +0100 In-Reply-To: <20031109023041.GA9171@VARK.homeunix.com> Message-ID: <868ympydcx.fsf@borg.borderworlds.dk> Lines: 24 User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii cc: hackers@FreeBSD.ORG cc: phk@FreeBSD.ORG cc: Lukas Ertl Subject: Re: geom_mirror implementation X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 09 Nov 2003 11:45:40 -0000 David Schultz writes: > On Sun, Nov 09, 2003, Lukas Ertl wrote: > > Hi hackers@, > > > > I've played around with GEOM a bit and beefed up geom_mirror, which is > > already in the tree but not built yet. > > > > You can find the patch at . > > Hmm...I believe geom_mirror is supposed to be an example, and > geom_ccd is supposed to be the production mirroring implementation. > ccd does have its quirks, though... Last time I checked ccd needed to be manually reconfigured to run in degraded mode and sync is not possible. In my book that's not good enough for production. Furthermore it would be nice with a mirror implementation that automatically syncs the mirror after an unclean shutdown. -- Best regards Christian Laursen