From owner-freebsd-questions@FreeBSD.ORG Sat Aug 14 19:57:53 2010 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 243DC1065679 for ; Sat, 14 Aug 2010 19:57:53 +0000 (UTC) (envelope-from dick@nagual.nl) Received: from mail.nagual.nl (cc535223-a.groni1.gr.home.nl [82.73.72.175]) by mx1.freebsd.org (Postfix) with ESMTP id 9A9908FC0C for ; Sat, 14 Aug 2010 19:57:52 +0000 (UTC) Received: from [192.168.11.34] [192.168.11.34] by westmark.nagual.nl (Axigen) with (AES256-SHA encrypted) ESMTPSA id 394AC7; Sat, 14 Aug 2010 21:49:37 +0200 Message-ID: <4C66F542.6090501@nagual.nl> Date: Sat, 14 Aug 2010 21:57:54 +0200 From: Dick Hoogendijk User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; nl; rv:1.9.2.8) Gecko/20100802 Thunderbird/3.1.2 MIME-Version: 1.0 To: freebsd-questions@freebsd.org References: <4C669668.5040906@nagual.nl> <19558.60756.860555.968721@gargle.gargle.HOWL> In-Reply-To: <19558.60756.860555.968721@gargle.gargle.HOWL> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-AxigenSpam-Level: 4 Subject: Re: ZFS not usable on FreeBSD-8.1 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: Sat, 14 Aug 2010 19:57:53 -0000 On 14-8-2010 21:24, George Hartzell wrote: > You haven't provided enough information for me to make a concrete > suggestion, but this kind of thing often seems to boil down to > something getting confused over slices and partitions when they both > have the same extent (start->end) on disk. This used to bite me in > the gmirror world until I learned to make the partition one block > smaller than the slice it lived in. And how do I make the partition precisely one block smaller than the slic it lives in? How do I know what the "blocksize" is? > Are you using explicit device names to add the disks to your pool? If > so you'll gain robustness by using labels, either glabels as described > here: > > http://submesa.com/data/bsd/zfs > > or if you're in the gpt world then gpt labels as described in the > gpart commands illustrated here: > > http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/Mirror I tried both methods. I had the disks as GPT labeld ones and slices by sysinstall. None worked. So it may be the one block difference. Please tell me how to do that.