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 BD9C21381FA for ; Wed, 14 May 2014 08:01:55 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 9E551E0AE7; Wed, 14 May 2014 08:01:49 +0000 (UTC) Received: from postler.lichtfels.com (postler.lichtfels.com [78.46.92.195]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 631DFE0ABA for ; Wed, 14 May 2014 08:01:48 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by postler.lichtfels.com (Postfix) with ESMTP id 3A0AA1573E for ; Wed, 14 May 2014 10:01:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xunil.at; s=mailout; t=1400054506; bh=o2i1WG1Hm3KTwTu/Iqsf7r5QW8VtcS5b56/SVS+y/GQ=; h=Date:From:Reply-To:To:Subject:References:In-Reply-To; b=uZ52pdT8FHlBQecOp6AzN88uLFyaepXqa4F7nUnzipWo4e7ev8kKxe+8ZpSSc2Rrm gPWU3m+eMLQkD8d0artfvPDEHuATLvdnUGLd7uZhUHbs9TKZA+9XQN+VMeMrIwLzW1 Ym/5LzJ3d3b5EafkvMd6/LT74iRWKSHbOezFJXsY= Received: from postler.lichtfels.com ([127.0.0.1]) by localhost (postler.lichtfels.com [127.0.0.1]) (amavisd-maia, port 10024) with LMTP id 13699-06 for ; Wed, 14 May 2014 10:01:44 +0200 (CEST) Received: from hiro.oops.intern (unknown [IPv6:2001:15c0:65ff:8742:1cec:56da:46c9:f911]) (using TLSv1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by postler.lichtfels.com (Postfix) with ESMTPSA id 1DEE0123E0 for ; Wed, 14 May 2014 10:01:43 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xunil.at; s=mailout; t=1400054504; bh=o2i1WG1Hm3KTwTu/Iqsf7r5QW8VtcS5b56/SVS+y/GQ=; h=Date:From:Reply-To:To:Subject:References:In-Reply-To; b=SDEFAq99Y1d8ON335lKMDEfxday7wWY41/x+/9k5IsipRXBAkX8hvGTKq6kTu46nS gL1Fo2GXFZA5dBjlvh2Ns5Gl3hwe389TpPIcUjY36jRkv/A12yawPJn/5SHz3LKQDq 2R2oq+S3AQ1UnIHwcduoX5lN2FPj/uk8fouFk4/o= Message-ID: <537322E6.9040907@xunil.at> Date: Wed, 14 May 2014 10:01:42 +0200 From: "Stefan G. Weichinger" Organization: oops! User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.5.0 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] btrfs conversion: first impressions References: <20140506121832.678ae781@marcec> <5369688C.1040708@iinet.net.au> <20140507015126.5b57fb88@marcec> <536B712E.3040009@iinet.net.au> <536BC974.9090200@xunil.at> <536D339D.9000506@xunil.at> <536E0A01.4070803@xunil.at> <536F6EA2.6030506@xunil.at> <536FA2A4.4040205@xunil.at> <536FEA92.1080502@xunil.at> <20140512163049.4f605ff0@marcec> <537112CB.7050408@xunil.at> <53729DE4.3090908@xunil.at> <20140514000228.546a90f2@hactar.digimed.co.uk> <5372A61D.9060406@xunil.at> <20140514013910.37678e36@digimed.co.uk> In-Reply-To: <20140514013910.37678e36@digimed.co.uk> X-Enigmail-Version: 1.6 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.2c X-Archives-Salt: 8174648f-e24c-486c-af3e-32d51c1908e5 X-Archives-Hash: f95266eb07eb856ed59aeb5f82f74eed -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Am 14.05.2014 02:39, schrieb Neil Bothwick: >> Doesn't that screw up the whole idea of checksumming etc ? > > Not to my mind. The bits are recorded and checksummed, that's what > matters. If a bit on a platter is flipped, the decrypted bits will > also change. But then the "container" of the btrfs would be corrupted, right? >> In my understanding the FS (=btrfs or zfs) should have the >> direct contact to the "metal" (=hdd/sdd) to be fully able to >> detect bitrot and stuff. > > It is a recommended method of encryption in the BTRFS FAQ. > > https://btrfs.wiki.kernel.org/index.php/FAQ#Does_btrfs_support_encryption.3F > > As btrfs does not support encryption itself, this or ecryptfs are > the only options. Yes, I saw that as well. Will give it a try sometimes soon ... 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