From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) by finch.gentoo.org (Postfix) with ESMTP id C5E53138993 for ; Mon, 27 Oct 2014 17:23:24 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id C8222E0A53; Mon, 27 Oct 2014 17:23:19 +0000 (UTC) Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 8A3E8E09C1 for ; Mon, 27 Oct 2014 17:23:18 +0000 (UTC) Received: by mail-wi0-f175.google.com with SMTP id h11so5055740wiw.14 for ; Mon, 27 Oct 2014 10:23:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=ADeHzCFJFKnSkyXV6/nVFFQs+8PTgAQxK5Bw5OOh498=; b=KFawERBAS7A6Ilc/fspBDd6mbx763f3+IB0HOlp+ow/C9LlYUe6NAmBdAElzvn54md iwEcatlGj+ZovqZUABp09rnXRAEHHXcrZWAn2EHhbr9Qmu16PKUYEUBBo9YgEQDJWMMK c4k3ic/29GUtoq+kuXfBW0xqPR7V+iqs5/PyMMrFcoMab3gMCLcxI/XUxicU3U0LE4oq 9WF7DSH9Scls3M8KwpN8ZxV42FMGPtKVG5m4wXfrzdIbYRKLQqe4otIApuk4doGqS+Mi 333Ef/pYMmSj9qO+y94alzsFD2+1dGWHKTFBOhI+VjI3fxTdkUm6Tkf1cZDbyB/x2aD0 +uwg== X-Received: by 10.180.212.48 with SMTP id nh16mr22746881wic.50.1414430597180; Mon, 27 Oct 2014 10:23:17 -0700 (PDT) Received: from [192.168.178.21] (p3E9E7622.dip0.t-ipconnect.de. [62.158.118.34]) by mx.google.com with ESMTPSA id gp17sm6316267wjc.34.2014.10.27.10.23.16 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 27 Oct 2014 10:23:16 -0700 (PDT) Message-ID: <544E7F83.4020303@googlemail.com> Date: Mon, 27 Oct 2014 18:23:15 +0100 From: Volker Armin Hemmann User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.2.0 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] Safeguarding strategies against SSD data loss References: <201410270924.40381.michaelkintzios@gmail.com> <544E2875.5000309@gmail.com> <201410271522.32452.michaelkintzios@gmail.com> In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Archives-Salt: ec3895f9-f477-4531-9ecc-8d1cf6d91ecf X-Archives-Hash: 482d840df9528f977b9bdbf3f9a11c94 Am 27.10.2014 um 16:36 schrieb Rich Freeman: > On Mon, Oct 27, 2014 at 11:22 AM, Mick wrote: >> Thanks Rich, I have been reading your posts about btrfs with interest, but >> have not yet used it on my systems. Is btrfs agreeable with SSDs, or should I >> be using f2fs: >> > Btrfs will auto-detect SSDs and optimize itself differently, and is > generally considered to be fine on SSDs. Of course, btrfs itself is > experimental and may eat your data, especially if you get it too full, > but you'll be no worse off for running it on an SSD. > > I doubt you'll find any general-purpose filesystem that works as well > overall on an SSD as something like f2fs as this is log-based and > designed with SSDs in mind. However, f2fs is also very immature and > also carries risks, and the last time I checked it was missing some > features like xattrs as well. It also doesn't have anything like > btrfs send to serialize your data. > > zfs on linux might be another option. I don't know how well it > handles SSDs in general, and you have to fuss with FUSE no, you don't. > and a boot > partition as I don't think grub supports it - it could be a bit of a > PITA for a single-drive system. nope. But I don't see any reason to use zfs with a single drive either. > However, it is probably more mature > than btrfs overall, and it certainly supports send. and if your send stream is corrupted, your data is gone. That is why I prefer cp&tar to backup my zfs data tank.