From owner-freebsd-questions@FreeBSD.ORG Mon Oct 19 15:09:55 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 70D5C1065676 for ; Mon, 19 Oct 2009 15:09:55 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-yx0-f184.google.com (mail-yx0-f184.google.com [209.85.210.184]) by mx1.freebsd.org (Postfix) with ESMTP id 24A5E8FC19 for ; Mon, 19 Oct 2009 15:09:54 +0000 (UTC) Received: by yxe14 with SMTP id 14so6197666yxe.7 for ; Mon, 19 Oct 2009 08:09:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=vyTpqqNZzQdsoJblkjXqQGWp6lcm1ZJXIvuCKz1/58s=; b=PSEVdKeyZyTkbClPnPGIHLajAawA6b8QCJha1rCze8VbGZ+4sZ0FpPbrqWS5GmLgVR IdTA0ToYKq4lSybbSG3/RLgXXI8+KlZ2/QZZYYCHDEcHmfiktyUhBVWiXgNC1C07ZYbv zhk96+PIha0YeSOCYrFEv0D6/J+FyX/ghYikU= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=VqFWSCd7JuvSd9STgxCZ9YMJwxTED/imzi/eKZcvIyzDtySJXpNPxQoRy7u5VyZ1x/ tTvyfviHAO4AXxuBSrIS20wQSqO+7cOnOTRjRZkBwUzL79kXFNB/xMIBR59v7qr0O76N C5W+NYsS9dLQ+JqnpAIvmG7/l/GtkJ0uRuoRo= MIME-Version: 1.0 Received: by 10.150.112.5 with SMTP id k5mr8208944ybc.348.1255964994208; Mon, 19 Oct 2009 08:09:54 -0700 (PDT) In-Reply-To: <4ADC7BD3.30301@videotron.ca> References: <4ADC6D89.10600@videotron.ca> <57200BF94E69E54880C9BB1AF714BBCBA57086@w2003s01.double-l.local> <4ADC772F.3060303@videotron.ca> <6201873e0910190729v12f66335xe93d0c83a0ee7aee@mail.gmail.com> <4ADC794F.3050505@videotron.ca> <6201873e0910190737o1d849953h6761085ba532f8f6@mail.gmail.com> <4ADC7BD3.30301@videotron.ca> Date: Mon, 19 Oct 2009 10:09:53 -0500 Message-ID: <6201873e0910190809h3cd4416bxaaf526008110447a@mail.gmail.com> From: Adam Vande More To: PJ Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: Johan Hendriks , Polytropon , freebsd-questions@freebsd.org Subject: Re: glabel clarification X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 19 Oct 2009 15:09:55 -0000 On Mon, Oct 19, 2009 at 9:46 AM, PJ wrote: > Adam Vande More wrote: > > On Mon, Oct 19, 2009 at 9:35 AM, PJ > > wrote: > > > > Adam Vande More wrote: > > > On Mon, Oct 19, 2009 at 9:26 AM, PJ > > > > > >> wrote: > > > > > > Yes, this is true and that is why I thought that glabel would > > > work; I am > > > trying to set up my computers with identical clones that I > > can update > > > with changes on the master machine from time to time and > > thus prevent > > > data loss in case of problems. So I use ad12 as the main > > system; if it > > > were to crash I would then boot from ad6 which is identical. > > But the > > > /etc/fstab is identical in both machines. So if I boot from > > ad6, I > > > will > > > get booted from ad12 ... so that doesn't work. It looks like we > > > need an > > > unique identifier for each disk. > > > > > > > > > Why not use gmirror? > > > > > > > > > -- > > > Adam Vande More > > because I am not using RAID. :-( > > > > > > gmirror + ggated = disk or slice replicated to remote system > > > > -- > > Adam Vande More > You ae trying to give me a migraine. :-) > But what happens if the disks are not identical in size? Dump/restore > allows for that; dump/restore will copy only the used date and not the > entire partition or slice. > > It depends on what your end goals is which is still not entirely clear. Do you want a disk that can be unplugged from a machine and used to boot immediately in your orginal system in case of hd failure. If yes then gmirror + ggated is the way to go. If you simply want data to be backed up on regular basis, something like rsync is easier. -- Adam Vande More