From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1S16rE-0001Zd-BM for garchives@archives.gentoo.org; Sat, 25 Feb 2012 01:55:32 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 26AE9E0C5D; Sat, 25 Feb 2012 01:55:13 +0000 (UTC) Received: from mail-bk0-f53.google.com (mail-bk0-f53.google.com [209.85.214.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 90F08E0C46 for ; Sat, 25 Feb 2012 01:54:18 +0000 (UTC) Received: by bkcjg9 with SMTP id jg9so727239bkc.40 for ; Fri, 24 Feb 2012 17:54:17 -0800 (PST) Received-SPF: pass (google.com: domain of freemanrich@gmail.com designates 10.205.132.71 as permitted sender) client-ip=10.205.132.71; Authentication-Results: mr.google.com; spf=pass (google.com: domain of freemanrich@gmail.com designates 10.205.132.71 as permitted sender) smtp.mail=freemanrich@gmail.com; dkim=pass header.i=freemanrich@gmail.com Received: from mr.google.com ([10.205.132.71]) by 10.205.132.71 with SMTP id ht7mr2215152bkc.19.1330134857770 (num_hops = 1); Fri, 24 Feb 2012 17:54:17 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type :content-transfer-encoding; bh=NdkJxrua6upTAh43hsvYcfuH06Z8KDt9Yengcw+XKX8=; b=LOHIxqnzffKmv6p3gAZ6rPH5NIIWBa/6Zv/KnZxVhqF1mjWRwx7YmlTpKUpY0/DzRG Pzr93lgp0sfJ/VN0yk9m4C2Oz5PwGo6azRyiFNPYcJ4lZxb7Y8fHzW6k5ea9NXALGlDi VaPwlGRe239cZC4Y7+clwJiTQK5aZLctiSWNE= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@lists.gentoo.org Reply-to: gentoo-dev@lists.gentoo.org MIME-Version: 1.0 Received: by 10.205.132.71 with SMTP id ht7mr1822569bkc.19.1330134857650; Fri, 24 Feb 2012 17:54:17 -0800 (PST) Sender: freemanrich@gmail.com Received: by 10.205.32.194 with HTTP; Fri, 24 Feb 2012 17:54:17 -0800 (PST) In-Reply-To: <4F48340D.4050704@cs.stonybrook.edu> References: <4F47CF5C.4070508@gentoo.org> <20120224154327.61c051ad@gentoo.org> <4F48340D.4050704@cs.stonybrook.edu> Date: Fri, 24 Feb 2012 20:54:17 -0500 X-Google-Sender-Auth: Tv2QlonEMUXGivVrJKIsSB2x04g Message-ID: Subject: Re: [gentoo-dev] btrfs status and/was: preserve_old_lib From: Rich Freeman To: gentoo-dev@lists.gentoo.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 7e1fb899-736e-4202-b3dc-51552f77fd8f X-Archives-Hash: 9fdf2fb36c2e1f09921e1f411e35ca5f On Fri, Feb 24, 2012 at 8:06 PM, Richard Yao wrote= : > Have you tried ZFS? Yes - but not terribly interested in doing that on linux. I do appreciate that it can be done, but still lacks raid-z reshaping, which means it isn't quite flexible enough. > On 02/24/12 18:26, Duncan wrote: >> FWIW, in the rare event it breaks revdep-rebuild or the underlying >> =A0rebuilding itself, I rely on my long set FEATURES=3Dbuildpkg and >> emerge -K. I also use buildpkg, but I don't keep them around forever. >> I'm not sure if that's a reference to the btrfs snapshots allowing >> =A0rollbacks feature, or a hint that you're running it and worried >> about its stability underneath you... That would be the former. I'm QUITE aware of its stability. I've played around with it on a VM - I posted on my blog an experience with it around a year ago as well. It has come quite a way, but it is definitely not production quality. Xfs-tools is useful if you want to try breaking it - I think I posted on my blog an article about capturing linux kernel core dumps for debugging purposes - it panics quite readily. If you do want to mess with it I'd recommend using the git kernel maintained by the btrfs team. It is obviously bleeding-edge, but due to the high pace of fixes it tends to be more stable than the version in the mainline kernel. Rich