From owner-freebsd-questions@FreeBSD.ORG Mon Nov 29 08:52:14 2010 Return-Path: Delivered-To: freebsd-questions@FreeBSD.ORG Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2B6EB106566B; Mon, 29 Nov 2010 08:52:14 +0000 (UTC) (envelope-from ohartman@zedat.fu-berlin.de) Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) by mx1.freebsd.org (Postfix) with ESMTP id DC91B8FC08; Mon, 29 Nov 2010 08:52:13 +0000 (UTC) Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost1.zedat.fu-berlin.de (Exim 4.69) with esmtp (envelope-from ) id <1PMzT3-00031F-2Y>; Mon, 29 Nov 2010 09:52:13 +0100 Received: from telesto.geoinf.fu-berlin.de ([130.133.86.198]) by inpost2.zedat.fu-berlin.de (Exim 4.69) with esmtpsa (envelope-from ) id <1PMzT2-00041b-VH>; Mon, 29 Nov 2010 09:52:13 +0100 Message-ID: <4CF369C4.4030007@zedat.fu-berlin.de> Date: Mon, 29 Nov 2010 09:52:20 +0100 From: "O. Hartmann" Organization: Freie =?ISO-8859-1?Q?Universit=E4t_Berlin?= User-Agent: Mozilla/5.0 (X11; U; FreeBSD amd64; en-US; rv:1.9.2.12) Gecko/20101029 Thunderbird/3.1.6 MIME-Version: 1.0 To: freebsd-questions@FreeBSD.ORG, freebsd-current@FreeBSD.org Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: 130.133.86.198 Cc: Subject: CURRENT: Issue with ZFS and 2TB WD HDD (WDC WD20EURS-63Z9B1 80.00A80) X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Nov 2010 08:52:14 -0000 I'm running a newly setup FreeBSD 9.0-CURRENT/amd64 SMP box. The former OS was FreeBSD 8.1-PRE/amd64. Attached to the system are three WD harddrives with ZFS as filesystem on GPT partitioning scheme. Two 1TB HDD are spanning a volume with 2 TB capacity which is quite fast due to parallel access through ZFS. The underlying layout is, as mentioned, GPT, bot devices are named /dev/ada1p1 and /dev/ada2p1. The thir drive is a WD Caviar Green 2TB HDD acting as a compressed ZFS backup media, also based on a GPT partitioning scheme and known as device /dev/ada3p1. In FreeBSD 8.2-PRE/amd64 I can use the JBOD volume resembled from two 1TB HDD without problems, mounting is all right, dismounting, also with the 2TB HDD, labeld as BACKUP00 volume in ZFS. Doing a "zpool export" on both ZFS volumes works fine in FBSD 8, importing is also no problem. The system's log does not show any kind of irregularities, errors or something else indicating soemthing weird with one of the three devices. Exporting both volumes in FreeBSD 8 works. But importing them in FreeBSD 9.0-CURRENT/amd64 as with the most recent make world of today fails on the 2TB HDD (ZFS pool/volume BACKUP00). Issuing "zpool import BACKUP00" results in cannot import 'BACKUP': no such pool available and on console I receive message ZFS WARNING: Unable to attach to ada1 But the drive is and was ada3! Looking with zpool status, I get the follwoing picture: pool: BACKUP00 state: FAULTED status: One or more devices could not be used because the label is missing or invalid. There are insufficient replicas for the pool to continue functioning. action: Destroy and re-create the pool from a backup source. see: http://www.sun.com/msg/ZFS-8000-5E scrub: none requested config: NAME STATE READ WRITE CKSUM BACKUP00 FAULTED 0 0 0 corrupted data ada3 UNAVAIL 0 0 0 corrupted data pool: THOR00 state: ONLINE scrub: none requested config: NAME STATE READ WRITE CKSUM THOR00 ONLINE 0 0 0 ada1p1 ONLINE 0 0 0 ada2p1 ONLINE 0 0 0 errors: No known data errors This picture differs from what I see i FreeBSD 8.2-PRE/amd issuing the same command! I did a full "zpool scrub" on both pools - no effect. Surprisingly, the GPT partition of the pool BACKUP00 isn't shown in FreeBSD 9, while I see ada3p1 in FreeBSD 8.2. gpart show ada3 lists this: => 34 3907029101 ada3 GPT (1.8T) 34 4062 - free - (2.0M) 4096 3907025039 1 freebsd-zfs (1.8T) The drive in question is a WesternDigital Caviar Green WD ( at scbus7 target 0 lun 0 (pass3,ada3)). Can someone explain what#s going on? The drive in question is one of the new 4k sized physical block devices. Why is FreeBSD 8 dealing with the HDD, FreeBSD 9 not? Any help at this point? Hope the volume is not lost. Thanks in advance, Oliver