From owner-freebsd-geom@FreeBSD.ORG Tue Jan 17 21:12:00 2006 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id AB20116A41F for ; Tue, 17 Jan 2006 21:12:00 +0000 (GMT) (envelope-from aragon@geek.sh) Received: from mail.geek.sh (decoder.geek.sh [196.36.198.81]) by mx1.FreeBSD.org (Postfix) with ESMTP id 327F443D45 for ; Tue, 17 Jan 2006 21:11:59 +0000 (GMT) (envelope-from aragon@geek.sh) Received: by mail.geek.sh (Postfix, from userid 1000) id 434DB24D15; Tue, 17 Jan 2006 23:11:55 +0200 (SAST) Date: Tue, 17 Jan 2006 23:11:55 +0200 From: Aragon Gouveia To: freebsd-geom@freebsd.org Message-ID: <20060117211155.GA12650@phat.za.net> References: <20060117103633.GA89290@phat.za.net> <43CD5505.2040705@fer.hr> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <43CD5505.2040705@fer.hr> User-Agent: Mutt/1.4i X-Operating-System: FreeBSD 4.10-RELEASE-p2 i386 Subject: Re: gmirror using disk image files X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 17 Jan 2006 21:12:00 -0000 | By Ivan Voras | [ 2006-01-17 22:35 +0200 ] > You can do use mdconfig(8) to do anything geom-related with files, > including mirroring them over the network. BUT, you can't mount the > mirrored file system at the same time on both machines except if both > mounts are read-only. > > Combinations such as: > > - mirrored devices/file systems mounted read-write on both machines > - mounted read-write on one machine and read-only on the other(s) Cool! I was planning on implementing the second one. > are all invalid and will sooner or later certainly result in system > panic (not because of GEOM but because of the UFS). I'd tell you to try > this: http://tdfs.sourceforge.net/ but it's really not production ready. Darn, that does certainly blow it out of the water then, atleast for my use. I'll keep an eye on both options' progress. Thanks! Aragon