From owner-freebsd-fs@FreeBSD.ORG  Tue Feb 12 00:19:42 2013
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115])
 by hub.freebsd.org (Postfix) with ESMTP id 4264BCFD
 for <freebsd-fs@freebsd.org>; Tue, 12 Feb 2013 00:19:42 +0000 (UTC)
 (envelope-from list_freebsd@bluerosetech.com)
Received: from rush.bluerosetech.com (rush.bluerosetech.com
 [IPv6:2607:fc50:1000:9b00::25])
 by mx1.freebsd.org (Postfix) with ESMTP id 1F7B58B1
 for <freebsd-fs@freebsd.org>; Tue, 12 Feb 2013 00:19:42 +0000 (UTC)
Received: from vivi.cat.pdx.edu (vivi.cat.pdx.edu [131.252.214.6])
 by rush.bluerosetech.com (Postfix) with ESMTPSA id EB0621141D
 for <freebsd-fs@freebsd.org>; Mon, 11 Feb 2013 16:19:40 -0800 (PST)
Received: from [127.0.0.1] (c-76-27-220-79.hsd1.wa.comcast.net [76.27.220.79])
 by vivi.cat.pdx.edu (Postfix) with ESMTPSA id E986A24D76
 for <freebsd-fs@freebsd.org>; Mon, 11 Feb 2013 16:19:39 -0800 (PST)
Message-ID: <51198A9C.4070406@bluerosetech.com>
Date: Mon, 11 Feb 2013 16:19:40 -0800
From: Darren Pilgrim <list_freebsd@bluerosetech.com>
User-Agent: Mozilla/5.0 (Windows NT 6.1;
 rv:10.0.10) Gecko/20121024 Thunderbird/10.0.10
MIME-Version: 1.0
To: freebsd-fs@freebsd.org
Subject: When did ZFS support snapshotting during a scrub?
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/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: Tue, 12 Feb 2013 00:19:42 -0000

The other day I discovered that my 8.3-R systems (zpool v28, ZFS v4) 
will let me create and destroy snapshots when a scrub is running.  This 
was not the case in $previous_version, but a quick scan of release notes 
doesn't mention it.  I believe you couldn't snapshot during a scrub in 
8.1-R, but I'm not sure.  Does anyone know which ZFS/zpool version 
removed this restriction?