From owner-freebsd-questions@FreeBSD.ORG Wed Nov 4 01:53:14 2009 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 186371065670 for ; Wed, 4 Nov 2009 01:53:14 +0000 (UTC) (envelope-from steven.samuel.cole@gmail.com) Received: from mail-yx0-f171.google.com (mail-yx0-f171.google.com [209.85.210.171]) by mx1.freebsd.org (Postfix) with ESMTP id C693D8FC13 for ; Wed, 4 Nov 2009 01:53:13 +0000 (UTC) Received: by yxe1 with SMTP id 1so6225991yxe.3 for ; Tue, 03 Nov 2009 17:53:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:subject:content-type :content-transfer-encoding; bh=c71VKX0FP3NBgR4AB5HrTiGLo/WA2/rHfLfK9Ih2lhc=; b=IQOCW2U/YEXs//OWzSJCsMkoVLg0BGoUc6qIE7yKcYEYsniTW0ksq1GSIVkebpocBy 1GD19HugBVLYfMYAq0N5esT7hg8WT/gGVRwP2lgEwfQZDiL6xyOKPb9dSfxFXKZDihVw GO/H5H+1HpQ+jFfy9ZX+jzSD0bXpZNNJxGXmw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; b=dTQItzMPx1aOTVzRokNKwKCbhDv1eJinllQNMmVKtIpswUc9qatWM96+Z0I89Xa0dX hy+RNX9uucSUz5s85r6KCl+pZpbtYeEil1ULjVLU5EYPrbJso3HELP70MW06X1XEraiX YbsxpVgowRKZ8lX+md099t9MWFuwvYRFHlD5s= Received: by 10.150.33.5 with SMTP id g5mr1534829ybg.132.1257297843510; Tue, 03 Nov 2009 17:24:03 -0800 (PST) Received: from call.local ([121.98.140.46]) by mx.google.com with ESMTPS id 23sm216072ywh.33.2009.11.03.17.23.59 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 03 Nov 2009 17:24:02 -0800 (PST) Message-ID: <4AF0D7A4.3070705@gmail.com> Date: Wed, 04 Nov 2009 14:23:48 +1300 From: Steven Samuel Cole User-Agent: Thunderbird 2.0.0.23 (Macintosh/20090812) MIME-Version: 1.0 To: questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Cc: Subject: ZFS non-zero checksum and permanent error with deleted file 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: Wed, 04 Nov 2009 01:53:14 -0000 Hello, I couldn't find a dedicated FreeBSD/ZFS mailing list, so I hope this is the right place to ask. I'd like some advice if I should rely on one of my ZFS pools: [user@host ~]$ sudo zpool clear zpool01 ... [user@host ~]$ sudo zpool scrub zpool01 ... [user@host ~]$ sudo zpool status -v zpool01 pool: zpool01 state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see: http://www.sun.com/msg/ZFS-8000-8A scrub: none requested config: NAME STATE READ WRITE CKSUM zpool01 ONLINE 0 0 4 raidz1 ONLINE 0 0 4 ad12 ONLINE 0 0 0 ad14 ONLINE 0 0 0 ad16 ONLINE 0 0 0 ad18 ONLINE 0 0 0 errors: Permanent errors have been detected in the following files: zpool01:<0x3736a> How can there be an error in a file that does not seem to exist ? How can I clear / recover from the error ? I have read the corresponding documentation and did the obligatory research, but so far, the only option I can see is a full destroy/create cycle - which seems an overkill, considering the pool size and the fact that there seems to be only one (deleted ?) file involved. [user@host ~]$ df -h /mnt/zpool01/ Filesystem Size Used Avail Capacity Mounted on zpool01 1.3T 1.2T 133G 90% /mnt/zpool01 [user@host ~]$ uname -a FreeBSD host.domain 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Fri May 1 07:18:07 UTC 2009 root@driscoll.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC amd64 Cheers, ssc