From owner-freebsd-fs@FreeBSD.ORG Fri Sep 17 15:40:40 2010 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 33CFE106567A for ; Fri, 17 Sep 2010 15:40:40 +0000 (UTC) (envelope-from bryan@shatow.net) Received: from secure.xzibition.com (secure.xzibition.com [173.160.118.92]) by mx1.freebsd.org (Postfix) with ESMTP id D4B228FC08 for ; Fri, 17 Sep 2010 15:40:39 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; c=nofws; d=shatow.net; h=message-id :date:from:mime-version:to:cc:subject:references:in-reply-to :content-type:content-transfer-encoding; q=dns; s=sweb; b=ubLG7C J94tpeQN0CLGtORdpeVsQKVK2+bWseHZOvXVBvUAeah9TQP2rn1ed09FJToFt2yv MFaQ8GAfd8mZRPW/Xu8z9+oicg2+NG8Y8YKWU9oCVk5qvWFHbMaF+dTALnqDO5/X tENofR5PgyKXMxPyJz4Jp5uSnorUJPGzIYFhY= DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=shatow.net; h=message-id :date:from:mime-version:to:cc:subject:references:in-reply-to :content-type:content-transfer-encoding; s=sweb; bh=gy4Pf93g0ppO xyBotQDPE286TKwRbpXRFAPuXGqPQtk=; b=2WIN7gYl4u/FPDxlvhCbX6jalN12 7cDER7XluySgwsV4nl5JG2YQvLzywTcEkVj8TYHM3nQAe+N3/N8H5HXxok0p5I/C Gv+tckCgSMg4RVQzcqqmUfzjolYYrYz3G7f1EJdn7j8UEg1p2T8IWD4/yLM/LBnh CoZKDfSn4GMMkvo= Received: (qmail 72754 invoked from network); 17 Sep 2010 10:13:57 -0500 Received: from unknown (HELO ?192.168.0.201?) (bryan@shatow.net@74.94.87.209) by sweb.xzibition.com with ESMTPA; 17 Sep 2010 10:13:57 -0500 Message-ID: <4C9385B0.2080909@shatow.net> Date: Fri, 17 Sep 2010 10:13:52 -0500 From: Bryan Drewery User-Agent: Thunderbird 2.0.0.24 (Windows/20100228) MIME-Version: 1.0 To: gil@vidals.net References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-fs@freebsd.org Subject: Re: what happens to pool if ZIL dies on ZFS v14 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: Fri, 17 Sep 2010 15:40:40 -0000 Gil Vidals wrote: > I read a forum post claiming that FreeBSD's ZFS v13 will not continue to > function normally when the dedicated ZIL devices dies or goes away. > Apparently the Solaris version of ZFS does support losing the ZIL. So can > somebody confirm what happens in FreeBSD 8.1 (ZFS v14)? > > Yes that is correct. You should mirror your log devices to avoid problems. zfs v19 allows removing log devices - so mirroring will not be necessary after that point. opensolaris$ zpool upgrade -v|grep Log 19 Log device removal Bryan