From owner-freebsd-fs@FreeBSD.ORG Mon Aug 27 14:43:45 2007 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7604E16A419 for ; Mon, 27 Aug 2007 14:43:45 +0000 (UTC) (envelope-from joao.barros@gmail.com) Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.188]) by mx1.freebsd.org (Postfix) with ESMTP id 08CC213C4B6 for ; Mon, 27 Aug 2007 14:43:44 +0000 (UTC) (envelope-from joao.barros@gmail.com) Received: by nf-out-0910.google.com with SMTP id b2so1195051nfb for ; Mon, 27 Aug 2007 07:43:43 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=bx3yiS5GnwCs2Ip7Sm/xfvUfE7tBfG1L/Jj8R9RoVbUXwzrCceNOfSUojADWq1kSBZGU5cMDeHsrw9cZVWtg7MNWyy/SJ7+7v6Y8/bQt0JottRA2HShGfMt8PwhrASiOIjy27Mr4wJCxTzq+ryDg8QY+47+iNYWoQk7YVZ9wwn4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=RNcsQBX2cfiR8znpnUoWj88s97fZ6Bz8UHR0RHDtdluOu8lt1g9BsCbqloQN0ufyIGhPQ9PX9485AN5xxND5HEg2oKwD8n1EqI9FdiUKJ6vnvt120XuweLl/1vhtOPQpBN4jhcftosT43MUbsi5CJziuk+y7QhSNB1hZZoKmFKo= Received: by 10.78.204.1 with SMTP id b1mr3971975hug.1188224141860; Mon, 27 Aug 2007 07:15:41 -0700 (PDT) Received: by 10.78.187.16 with HTTP; Mon, 27 Aug 2007 07:15:36 -0700 (PDT) Message-ID: <70e8236f0708270715l51238a8ai50ad5daaa1f71eb8@mail.gmail.com> Date: Mon, 27 Aug 2007 15:15:36 +0100 From: "Joao Barros" To: "Simun Mikecin" In-Reply-To: <461381.93183.qm@web36609.mail.mud.yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <461381.93183.qm@web36609.mail.mud.yahoo.com> Cc: freebsd-fs@freebsd.org Subject: Re: zfs: Use wholedisk or not? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 27 Aug 2007 14:43:45 -0000 On 8/27/07, Simun Mikecin wrote: > Is it safe to create zpool using whole disks instead of partitioning (making a GPT partition)? > I know that using whole disks gives the benefit that zfs will to try to enable disk write cache on it. Not only is it safe, it's recommended by Sun. > But I'm scared of what would happen if I plug such a disk on some other machine, that runs some > other OS (Windows for example) since that disk will not have a valid MBR. > Will it try to restore a valid MBR and destroy a zpool in the process? Windows does not restore MBRs unless you ask it to. -- Joao Barros