From owner-freebsd-fs@FreeBSD.ORG Fri Sep 17 15:35:06 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 ADCB71065679 for ; Fri, 17 Sep 2010 15:35:06 +0000 (UTC) (envelope-from gvidals@gmail.com) Received: from mail-ew0-f54.google.com (mail-ew0-f54.google.com [209.85.215.54]) by mx1.freebsd.org (Postfix) with ESMTP id 3BC468FC16 for ; Fri, 17 Sep 2010 15:35:05 +0000 (UTC) Received: by ewy22 with SMTP id 22so1288045ewy.13 for ; Fri, 17 Sep 2010 08:35:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:reply-to :in-reply-to:references:date:message-id:subject:from:to:content-type; bh=KiU0I8tD/S/9eferFpoCgPdc+1olvTss12VM527RE5c=; b=QbciECutPDZ64V+GCR95aC4UkcZxp65FjfBO0QB96eMfBP0aQbZ57+3cr6eIUh2Cr8 xHpy5KlXzFIBd9CIbvo+Oe/ZQT+qGm5eBqiNnufpQM3PV/Dgy7p44Ea65QUQPLPAj6TP 6ikvGKwHP/tYqENaG5Det18M1alKMUABosk3c= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:reply-to:in-reply-to:references:date:message-id :subject:from:to:content-type; b=kvLoilgYqX5YzbEzZY9o/G0V+uYOhe5ctDPVVam1MTWWei9CNtnlYRuXfeTEqQ45Ur 29J+IJVYx9M6UCNE5pdSkk58+iEJ/orCm/jcFM4Zoa6zNpVwzo846b1h7YPtHLZzsjBN 7u4dLxTXmidiKKiQrsTb4vODFa0dNtrhjPXhE= MIME-Version: 1.0 Received: by 10.239.137.3 with SMTP id j3mr297484hbj.66.1284737704796; Fri, 17 Sep 2010 08:35:04 -0700 (PDT) Received: by 10.239.153.75 with HTTP; Fri, 17 Sep 2010 08:35:04 -0700 (PDT) In-Reply-To: <4C9385B0.2080909@shatow.net> References: <4C9385B0.2080909@shatow.net> Date: Fri, 17 Sep 2010 08:35:04 -0700 Message-ID: From: Gil Vidals To: freebsd-fs@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 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 Reply-To: gil@vidals.net List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Sep 2010 15:35:06 -0000 Bryan thank you for the detailed answer. Assuming the ZIL SSD died, what steps would I follow to recover the pool? (i hope it is recoverable). -Gil Vidals / VMRacks.com On Fri, Sep 17, 2010 at 8:13 AM, Bryan Drewery wrote: > 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 >