From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (unknown [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id 7AC171381FA for ; Sat, 17 May 2014 03:02:51 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id DA2EDE0B3A; Sat, 17 May 2014 03:02:45 +0000 (UTC) Received: from icp-osb-irony-out1.external.iinet.net.au (icp-osb-irony-out1.external.iinet.net.au [203.59.1.210]) by pigeon.gentoo.org (Postfix) with ESMTP id 64249E0A90 for ; Sat, 17 May 2014 03:02:44 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AukFAEDQdlNqRDuS/2dsb2JhbABZgwaqdAEBAQaXGIMTAYEOFnSCJQEBBXgRCw0LCRYPCQMCAQIBRRMIAQGIPNFcF4VViA9yFoQqAQOKE49GhmopjAeDRDA X-IronPort-AV: E=Sophos;i="4.98,1071,1392134400"; d="scan'208";a="224509965" Received: from unknown (HELO moriah.localdomain) ([106.68.59.146]) by icp-osb-irony-out1.iinet.net.au with ESMTP; 17 May 2014 11:02:41 +0800 Received: from localhost (localhost [127.0.0.1]) by moriah.localdomain (Postfix) with ESMTP id 2B17615B23 for ; Sat, 17 May 2014 11:02:40 +0800 (WST) X-Virus-Scanned: amavisd-new at lan.localdomain Received: from moriah.localdomain ([127.0.0.1]) by localhost (moriah.lan.localdomain [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id g-6qkFbwuXSq for ; Sat, 17 May 2014 11:02:35 +0800 (WST) Received: from [192.168.44.3] (moriah [192.168.44.3]) by moriah.localdomain (Postfix) with ESMTP id 7C64A1D365 for ; Sat, 17 May 2014 11:02:35 +0800 (WST) Message-ID: <5376D14B.9010306@iinet.net.au> Date: Sat, 17 May 2014 11:02:35 +0800 From: William Kenworthy User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 To: gentoo-user@lists.gentoo.org Subject: Re: [gentoo-user] experience thus far References: <20140506121832.678ae781@marcec> <20140516221558.19e69a5b@marcec> <5376A871.7010609@iinet.net.au> In-Reply-To: <5376A871.7010609@iinet.net.au> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Archives-Salt: 7204778c-be81-4899-a9a8-fc09e293aac1 X-Archives-Hash: 85cba2b443d2865e6840a33c63d5df8b On 17/05/14 08:08, William Kenworthy wrote: > On 17/05/14 04:15, Marc Joliet wrote: >> So, a week has passed since my conversion to btrfs. >> >... >> >> Have a nice weekend, >> > > Don't forget to have a maintenance program - run a scrub regularly once > a week or so - I have enough btrfs drives (22 qemu files, 4 WD Greens > att) to see about one or two scrub fixable errors a week with no obvious > cause, sometimes serious (in a critical file). My experience is that if > you ignore these errors they seem to increase over time resulting in a > crash and burn. Keep an eye on your logs as btrfs will list the errors > there as well ("grep -i btrfs /var/log/messages"). For the ones scrub > cant fix, delete the file and restore from backup. Errors that require > off-line fixing (btrfsck) are the ones where I have lost file systems - > though I have not seen this in the last 6 months. > > I am quite practised in restoring from backups because of btrfs :) > > BillK > > > This is from this mornings grep of the log: May 15 07:00:34 myth kernel: btrfs: checksum error at logical 1775247360 on dev /dev/vda3, sector 5580816, root 5, inode 6423718, offset 1839104, length 4096, links 1 (path: var/log/mythtv/old/mythbackend.20140421061150.6275.log-20140515) May 15 07:00:34 myth kernel: btrfs: bdev /dev/vda3 errs: wr 0, rd 0, flush 0, corrupt 1, gen 0 May 15 07:00:34 myth kernel: btrfs: unable to fixup (regular) error at logical 1775247360 on dev /dev/vda3 May 15 07:41:40 myth kernel: btrfs: bdev /dev/vda3 errs: wr 0, rd 0, flush 0, corrupt 1, gen 0 and May 16 20:40:33 moriah kernel: btrfs: bdev /dev/mapper/vg1-backups errs: wr 0, rd 250, flush 0, corrupt 13, gen 0 sigh .... BillK