From owner-freebsd-questions@freebsd.org  Thu Sep 24 13:28:57 2015
Return-Path: <owner-freebsd-questions@freebsd.org>
Delivered-To: freebsd-questions@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id CA15AA085F9
 for <freebsd-questions@mailman.ysv.freebsd.org>;
 Thu, 24 Sep 2015 13:28:57 +0000 (UTC) (envelope-from terje@elde.net)
Received: from rand.keepquiet.net (keepquiet.net [144.76.43.178])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client CN "keepquiet.net", Issuer "PositiveSSL CA 2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 90FA618EB
 for <freebsd-questions@freebsd.org>; Thu, 24 Sep 2015 13:28:56 +0000 (UTC)
 (envelope-from terje@elde.net)
Received: from [10.154.73.219] (2.150.50.78.tmi.telenormobil.no [2.150.50.78])
 (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits))
 (No client certificate requested)
 (Authenticated sender: terje@elde.net)
 by rand.keepquiet.net (Postfix) with ESMTPSA id 1EC0DB60;
 Thu, 24 Sep 2015 13:28:48 +0000 (UTC)
References: <480627999.9462316.1443098561442.JavaMail.zimbra@logitravel.com>
Mime-Version: 1.0 (1.0)
In-Reply-To: <480627999.9462316.1443098561442.JavaMail.zimbra@logitravel.com>
Content-Type: text/plain;
	charset=us-ascii
Content-Transfer-Encoding: quoted-printable
Message-Id: <B1B4C558-F34F-40CA-9EDB-30B8F47988A7@elde.net>
Cc: FreeBSD Questions <freebsd-questions@freebsd.org>
X-Mailer: iPhone Mail (10B500)
From: Terje Elde <terje@elde.net>
Subject: Re: Restructure a ZFS Pool
Date: Thu, 24 Sep 2015 15:28:45 +0200
To: Raimund Sacherer <raimund.sacherer@logitravel.com>
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions/>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
 <mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 24 Sep 2015 13:28:57 -0000

On 24. sep. 2015, at 14:42, Raimund Sacherer <raimund.sacherer@logitravel.co=
m> wrote:

> What I would like to know is if I can eliminate one Spare disk from the po=
ol, and add it as a ZIL again, without having to shutdown/reboot the server?=


I think so, but I'd test/check to make sure.=20

Also, I'd consider the ZIL a spof, and mirror it. Bad things will happen if t=
he blue smoke escapes, and if you run a single consumer SSD, it will.=20

Terje=