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 43E641381FA for ; Wed, 14 May 2014 08:54:47 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 2429FE0B1B; Wed, 14 May 2014 08:54:41 +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 E8627E0B15 for ; Wed, 14 May 2014 08:54:39 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by postler.lichtfels.com (Postfix) with ESMTP id C063D125C7 for ; Wed, 14 May 2014 10:54:38 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xunil.at; s=mailout; t=1400057678; bh=mILI91vFfPrCi9FVTeSoHEaYwiT+7P+twYb0dPLnOIU=; h=Date:From:Reply-To:To:Subject:References:In-Reply-To; b=gzlyzpoi7y2OEVJTdJ1M5Shi37ybDp9RrwqLqI0TQI60XX9SItocu3ytXbV26JW8p ulWhKb/739hYdlyRv+W0LHTRsRATjzMs1nJm2TD/95B/nRM4zDOQdZukN8ke4UR2jP AlvB0wecgB8QCrNGBb2o+YGVJddA2plFXXvZz++I= 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 22895-06 for ; Wed, 14 May 2014 10:54:36 +0200 (CEST) Received: from hiro.oops.intern (unknown [IPv6:2001:15c0:65ff:8742:4173:b2ee:c478:8f20]) (using TLSv1 with cipher ECDHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by postler.lichtfels.com (Postfix) with ESMTPSA id 4D512123E0 for ; Wed, 14 May 2014 10:54:36 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=xunil.at; s=mailout; t=1400057676; bh=mILI91vFfPrCi9FVTeSoHEaYwiT+7P+twYb0dPLnOIU=; h=Date:From:Reply-To:To:Subject:References:In-Reply-To; b=FhaN6tfvyedxQ48tS1b5tbrympQQ/y6KjFu5bBn/w6tgAy32RGZS45PHiPMS95Jdm Bk3d2Mx53H5/zu9CKUf4dJhOtIczLhRmnSVs/QfISxgMsQVUiF8qnxqEm70vS1npcj CzobYs8ico4NfiPV/NY6w3lQ7Nh5YOHqIopRiq8E= Message-ID: <53732F4B.3080302@xunil.at> Date: Wed, 14 May 2014 10:54:35 +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> <537322E6.9040907@xunil.at> <20140514094247.7753ea59@digimed.co.uk> In-Reply-To: <20140514094247.7753ea59@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: a2ddfa21-5ce8-4e93-aa34-8f8750982253 X-Archives-Hash: 365ef212bf539864fa2ce8d9eb240be5 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Am 14.05.2014 10:42, schrieb Neil Bothwick: > On Wed, 14 May 2014 10:01:42 +0200, Stefan G. Weichinger wrote: >> But then the "container" of the btrfs would be corrupted, right? > > No, because each element of the RAID is encrypted separately, so > btrfs can still use the good one to repair the bad one. If you were > to create an mdadm array, put dm-crypt on that and then btrfs on > top, which is more efficient because it encrypts each byte only > once, then you would lose the check and repair facilities. What RAID? I think of a laptop with only one SSD inside. You mean the duplicated metadata in this case? -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBAgAGBQJTcy9LAAoJEClcuD1V0PzmacMP/0kSvPhK5iShKxwAQnJfuSRP S0Q+d1etq/H6TJoBCwRDuu1OLEU2iiyeOcMgPn7ZsFnFgP3joiNtV2OOVioFFbSY 7DvHujkSuTGrD3KxWGV59dZp1TCEX1UYL/L0UOkSujzDvspB1io7mbbEqlAhARpw 79cHZjMSK4juf6Go21Dos1Fnj5peSLPBASVZl7qmRjORZukZMOh70wVEcVcEVwoW VGDnme21GuaiMZn862ha1WMfIJVBArPsqial/hSsilS8l9np1IgtgZDUe1uH4VsA botwaEyr3wrPARBOipqLpCPmK/+R8zihFc/pIbO9c2PsSOKiRQPzVq4VAK4KWyc4 IutpBCO6tOpL6QBtjYmqJk+JF02/Bz1EtmaIfvyUSaQ4ZGP0nEb4qB9K+oWMriBd FDsOz2QT9+X+h/S7wfw3OPqCBHuqSlqqkyy/TFwCiO9e0GFLz8HONVV1rP+GeK5c 7Y3UBPbRDIbb4lsaySfDKgMtMDQ59ei6mwQL6A9CyA5MrL1R0wydYvOrkHyTRSHK xy+vuqxL384zHjORWX6uLj1Tu5hbJhG1JgNFrcHMdKwIV6kRJzYMUHMVYmLN+ENX 5Z2IWJRyVlr5yNGE/NoCDJQue2EO9H/gzxpSnwXeFjMpRSuvGN/2Ay2Ml5zSXB6x qrOj0Zp81jcky7zjXp01 =JG2q -----END PGP SIGNATURE-----