From owner-freebsd-current@FreeBSD.ORG Fri Jan 4 19:33:37 2008 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 189C816A46B for ; Fri, 4 Jan 2008 19:33:37 +0000 (UTC) (envelope-from gtodd@bellanet.org) Received: from an-out-0708.google.com (an-out-0708.google.com [209.85.132.242]) by mx1.freebsd.org (Postfix) with ESMTP id D390213C457 for ; Fri, 4 Jan 2008 19:33:36 +0000 (UTC) (envelope-from gtodd@bellanet.org) Received: by an-out-0708.google.com with SMTP id c14so1375596anc.13 for ; Fri, 04 Jan 2008 11:33:36 -0800 (PST) Received: by 10.100.254.18 with SMTP id b18mr36194320ani.57.1199473625625; Fri, 04 Jan 2008 11:07:05 -0800 (PST) Received: from ?192.168.2.159? ( [70.51.167.223]) by mx.google.com with ESMTPS id c38sm22329716anc.31.2008.01.04.11.07.04 (version=TLSv1/SSLv3 cipher=RC4-MD5); Fri, 04 Jan 2008 11:07:04 -0800 (PST) Message-ID: <477E82E3.6000303@bellanet.org> Date: Fri, 04 Jan 2008 14:02:59 -0500 From: Graham Todd User-Agent: Thunderbird 2.0.0.9 (X11/20071115) MIME-Version: 1.0 To: Matthew Dillon References: <200801012116.m01LGQhN012860@bonkers.video-collage.com> <200801032334.m03NY7Zd019292@apollo.backplane.com> In-Reply-To: <200801032334.m03NY7Zd019292@apollo.backplane.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Mikhail Teterin , efinleywork@efinley.com, current@freebsd.org Subject: Re: a new way to hang 7.0 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Jan 2008 19:33:37 -0000 Matthew Dillon wrote: > DragonFly has a new filesystem called HAMMER in the works which should > become production ready in a few months. All primary operations work now > so it is very real, but major pieces still need to be written and others > need to be rewritten and stabilized. It's in pre-alpha state now and > will be early-alpha by the DFly 2.0 release later this month. It should > be in a state that can be ported without having to play constant catchup > in maybe 2-3 months. This filesystem has full historical capabilities... > you don't even have to make snapshots per say, just sync, and you can get > at any data as-of any point in the past with a simple @@ > file/directory name extension. Wow, pretty neat. If HAMMER becomes the default filesystem and snapshots are low cost and easy are they any plans to leverage these features? :-) If I understand some of the opensolaris work correctly they are starting to make use of zfs snapshots for upgrades/updates and packaging systems.