From owner-freebsd-stable@FreeBSD.ORG Mon Oct 4 23:24:28 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 306C9106566C for ; Mon, 4 Oct 2010 23:24:28 +0000 (UTC) (envelope-from dan@langille.org) Received: from nyi.unixathome.org (nyi.unixathome.org [64.147.113.42]) by mx1.freebsd.org (Postfix) with ESMTP id F3B4D8FC1F for ; Mon, 4 Oct 2010 23:24:27 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by nyi.unixathome.org (Postfix) with ESMTP id 5C084509B6; Tue, 5 Oct 2010 00:24:27 +0100 (BST) X-Virus-Scanned: amavisd-new at unixathome.org Received: from nyi.unixathome.org ([127.0.0.1]) by localhost (nyi.unixathome.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SDXmeUqzbP54; Tue, 5 Oct 2010 00:24:27 +0100 (BST) Received: from smtp-auth.unixathome.org (smtp-auth.unixathome.org [10.4.7.7]) (Authenticated sender: hidden) by nyi.unixathome.org (Postfix) with ESMTPSA id 0D668509A8 ; Tue, 5 Oct 2010 00:24:27 +0100 (BST) Message-ID: <4CAA622B.4040904@langille.org> Date: Mon, 04 Oct 2010 19:24:27 -0400 From: Dan Langille Organization: The FreeBSD Diary User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.9) Gecko/20100915 Thunderbird/3.1.4 MIME-Version: 1.0 To: Alexander Leidinger References: <4CA73702.5080203@langille.org> <20101002141921.GC70283@icarus.home.lan> <4CA7AD95.9040703@langille.org> <20101002223626.GB78136@icarus.home.lan> <4CA7BEE4.9050201@langille.org> <20101002235024.GA80643@icarus.home.lan> <4CA7E4AE.4060607@langille.org> <4CA87233.2050308@langille.org> <20101004131911.6737284xpe0sv23o@webmail.leidinger.net> In-Reply-To: <20101004131911.6737284xpe0sv23o@webmail.leidinger.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-stable , Jeremy Chadwick Subject: Re: out of HDD space - zfs degraded X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Oct 2010 23:24:28 -0000 On 10/4/2010 7:19 AM, Alexander Leidinger wrote: > Quoting Dan Langille (from Sun, 03 Oct 2010 08:08:19 > -0400): > >> Overnight, the following appeared in /var/log/messages: >> >> Oct 2 21:56:46 kraken root: ZFS: checksum mismatch, zpool=storage >> path=/dev/gpt/disk06-live offset=123103157760 size=1024 >> Oct 2 21:56:47 kraken root: ZFS: checksum mismatch, zpool=storage >> path=/dev/gpt/disk06-live offset=123103159808 size=1024 > > [...] > >> Given the outage from yesterday when ada0 was offline for several >> hours, I'm guessing that checksum mismatches on that drive are >> expected. Yes, /dev/gpt/disk06-live == ada0. > > If you have the possibility to run a scrub of the pool, there should be > no additional checksum errors accouring *after* the scrub is *finished*. > If checksum errors still appear on this disk after the scrub is > finished, you should have a look at the hardware (cable/disk) and take > appropriate replacement actions. For the record, -just finished a scrub. $ zpool status pool: storage state: ONLINE status: One or more devices has experienced an unrecoverable error. An attempt was made to correct the error. Applications are unaffected. action: Determine if the device needs to be replaced, and clear the errors using 'zpool clear' or replace the device with 'zpool replace'. see: http://www.sun.com/msg/ZFS-8000-9P scrub: scrub completed after 13h48m with 0 errors on Mon Oct 4 16:54:15 2010 config: NAME STATE READ WRITE CKSUM storage ONLINE 0 0 0 raidz2 ONLINE 0 0 0 gpt/disk01-live ONLINE 0 0 0 gpt/disk02-live ONLINE 0 0 0 gpt/disk03-live ONLINE 0 0 0 gpt/disk04-live ONLINE 0 0 0 gpt/disk05-live ONLINE 0 0 0 gpt/disk06-live ONLINE 0 0 141K 3.47G repaired gpt/disk07-live ONLINE 0 0 0 errors: No known data errors -- Dan Langille - http://langille.org/