From owner-freebsd-fs@FreeBSD.ORG  Thu Aug 11 16:38:38 2011
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
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 24DDC106566B
	for <freebsd-fs@freebsd.org>; Thu, 11 Aug 2011 16:38:38 +0000 (UTC)
	(envelope-from amvandemore@gmail.com)
Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com
	[209.85.161.54])
	by mx1.freebsd.org (Postfix) with ESMTP id ACFE18FC17
	for <freebsd-fs@freebsd.org>; Thu, 11 Aug 2011 16:38:37 +0000 (UTC)
Received: by fxe4 with SMTP id 4so2390346fxe.13
	for <freebsd-fs@freebsd.org>; Thu, 11 Aug 2011 09:38:36 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma;
	h=mime-version:in-reply-to:references:date:message-id:subject:from:to
	:cc:content-type;
	bh=9ImXTMNuR8G39wqfKxrBS8eByrBw6xiaWwNvzjHVTl8=;
	b=YNx4/51jmQh0ZiNEwbqV3ujN9f5HszKxSyVGgQFbFKSQqvNHQ7Q9LrDXR8ZkI99K3n
	fc6UgDFWaeo8sa7vXXX4Yt71iHLKYr7YBZ1O24qWBRxQoeahl9Ea0v5XLJWawrSpg8fe
	JJbfmU2po6WwoRt2BT4G1qBFK2xaDlyVIEtxM=
MIME-Version: 1.0
Received: by 10.223.10.143 with SMTP id p15mr12972531fap.12.1313079035002;
	Thu, 11 Aug 2011 09:10:35 -0700 (PDT)
Received: by 10.223.120.72 with HTTP; Thu, 11 Aug 2011 09:10:34 -0700 (PDT)
In-Reply-To: <20110811160314.GA25076@cons.org>
References: <20110811160314.GA25076@cons.org>
Date: Thu, 11 Aug 2011 11:10:34 -0500
Message-ID: <CA+tpaK2wkoD3axNK=jxdOdWz2UV8210q=3mssrh+2OohcxpXpw@mail.gmail.com>
From: Adam Vande More <amvandemore@gmail.com>
To: Martin Cracauer <cracauer@cons.org>
Content-Type: text/plain; charset=ISO-8859-1
X-Content-Filtered-By: Mailman/MimeDel 2.1.5
Cc: freebsd-fs@freebsd.org
Subject: Re: ZFS zpool mirror drive replacement confusion
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
	<mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 11 Aug 2011 16:38:38 -0000

On Thu, Aug 11, 2011 at 11:03 AM, Martin Cracauer <cracauer@cons.org> wrote:

>        NAME        STATE     READ WRITE CKSUM
>        cbackup3    DEGRADED     0     0     0
>          mirror    DEGRADED     0     0     0
>            ad6     ONLINE       0     0     0
>            ad10    REMOVED      0     0     0
>          ad2       ONLINE       0     0    11
>
> Unfortunately I didn't keep note of the specific command that I used.
>
> Two questions:
>
> - Does somebody know offhand what I did and what I should have done
>  instead to get ad2 into the mirror?
>

What you did is add a disk to the zpool, not the mirror.


> - Would there have been a way to remove ad2 from this set?
>

I'm not sure of a way to remove the vdev other than to recreate from scratch
but perhaps the new features of zpool v28 allow for some forgiveness here.

-- 
Adam Vande More