From owner-freebsd-fs@FreeBSD.ORG Fri Sep 17 16:17:13 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 1001410656A8 for ; Fri, 17 Sep 2010 16:17:13 +0000 (UTC) (envelope-from fjwcash@gmail.com) Received: from mail-ey0-f182.google.com (mail-ey0-f182.google.com [209.85.215.182]) by mx1.freebsd.org (Postfix) with ESMTP id 954C58FC14 for ; Fri, 17 Sep 2010 16:17:12 +0000 (UTC) Received: by eyx24 with SMTP id 24so1322652eyx.13 for ; Fri, 17 Sep 2010 09:17:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type; bh=eaQIGIn1Y8x0vjevO0X0frOGGfVgvoCgPJUim3f1JP8=; b=gl4kxp9PendPhCVnmWsd/fF1xeQ0w4E8lArw2f/BhffvwI5UpSH/pqcvjkvBNISBGm DbxOHEXDKP/kDtBq5yQfYMEdn8A6RZ1REjnP+IJy32mI0+q2+BdGN03K9BODnQqkkd/q Q3SWel5ZXyFGqBfSA565tFwlKnufQoaK5WuK0= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=DrSFYRDalpkS+nSfUVi9EDywwSsEuUkim7dcKr79emRyWHh0RGhQP8Q96h3dvjVTxX f711DseMmlqyDPTEnJROicdEpeOE+wWbRWRd5jT9216XtlpnRZDaBWM6iUyY8tPbbLG1 h48QGEfglF4cH6+nMlllcLccLg9poy5cAW1lY= MIME-Version: 1.0 Received: by 10.223.105.84 with SMTP id s20mr2189478fao.10.1284740231646; Fri, 17 Sep 2010 09:17:11 -0700 (PDT) Received: by 10.223.110.197 with HTTP; Fri, 17 Sep 2010 09:17:11 -0700 (PDT) In-Reply-To: References: <4C9385B0.2080909@shatow.net> Date: Fri, 17 Sep 2010 09:17:11 -0700 Message-ID: From: Freddie Cash To: freebsd-fs@freebsd.org Content-Type: text/plain; charset=UTF-8 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 16:17:13 -0000 On Fri, Sep 17, 2010 at 8:35 AM, Gil Vidals wrote: > 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). If you are running ZFSv1 through ZFSv18 and your log device dies, your pool is dead, gone, unrecoverable, no secret prize, no continues, do not pass go, etc, etc, etc. If you are running ZFSv19 or newer and your log device dies, you can remove the dead device and carry on. You will lose any data that was in the ZIL, but the pool will be intact. Simple as that. -- Freddie Cash fjwcash@gmail.com