From owner-freebsd-fs@FreeBSD.ORG Sat Feb 25 04:37:15 2012 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A0157106566C for ; Sat, 25 Feb 2012 04:37:15 +0000 (UTC) (envelope-from Kamil.Choudhury@anserinae.net) Received: from hrndva-omtalb.mail.rr.com (hrndva-omtalb.mail.rr.com [71.74.56.122]) by mx1.freebsd.org (Postfix) with ESMTP id 604678FC0C for ; Sat, 25 Feb 2012 04:37:15 +0000 (UTC) X-Authority-Analysis: v=2.0 cv=Z7xu7QtA c=1 sm=0 a=qe0RvMpo0P4Rp0DQO452oA==:17 a=IYgu6Z7xpcEA:10 a=egyE7zw0hOcA:10 a=WWGGoYozHbgA:10 a=kj9zAlcOel0A:10 a=xqWC_Br6kY4A:10 a=VDMU8vR1T1jl0vMf1V4A:9 a=CjuIK1q_8ugA:10 a=qe0RvMpo0P4Rp0DQO452oA==:117 X-Cloudmark-Score: 0 X-Originating-IP: 68.173.236.44 Received: from [68.173.236.44] ([68.173.236.44:50651] helo=janus.anserinae.net) by hrndva-oedge02.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id B3/B6-04292-A75684F4; Sat, 25 Feb 2012 04:37:14 +0000 Received: from JANUS.anserinae.net ([fe80::192c:4b89:9fe9:dc6d]) by janus.anserinae.net ([fe80::192c:4b89:9fe9:dc6d%11]) with mapi; Fri, 24 Feb 2012 23:37:02 -0500 From: Kamil Choudhury To: "freebsd-fs@freebsd.org" Thread-Topic: Distributed, snapshotting, checksumming filesystems for FreeBSD Thread-Index: Aczzc7P/LgC0HATgSXWQqxJMHVprPA== Date: Sat, 25 Feb 2012 04:37:03 +0000 Message-ID: <3CEE2DA4348D944399A67E308B78D38A1A57CABA@janus.anserinae.net> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Subject: Distributed, snapshotting, checksumming filesystems for FreeBSD X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Feb 2012 04:37:15 -0000 The dream: a file system spread out over a variable,=20 ever increasing number of hosts, presenting a single=20 unified file system to any client host mounting the=20 file system.=20 >From the client's point of view, it is possible to=20 snapshot the directory view that is presented. The=20 client also has confidence that data written to the=20 file system will be returned exactly as it went in.=20 Now that I think about it, what I seem to be looking for is a network aware ZFS that uses hosts as vdevs.=20 Is there such a thing out there?=20 Kamil