From owner-freebsd-fs@FreeBSD.ORG Wed Oct 2 17:15:03 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id DC435A3B for ; Wed, 2 Oct 2013 17:15:03 +0000 (UTC) (envelope-from delphij@delphij.net) Received: from anubis.delphij.net (anubis.delphij.net [IPv6:2001:470:1:117::25]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id BB8FF29CF for ; Wed, 2 Oct 2013 17:15:03 +0000 (UTC) Received: from zeta.ixsystems.com (unknown [69.198.165.132]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by anubis.delphij.net (Postfix) with ESMTPSA id 7F49D28CBF; Wed, 2 Oct 2013 10:15:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=delphij.net; s=anubis; t=1380734102; bh=6dSFTwnFLGa2wT9pKuv4BX16IrO591vZb0r3DhwK0qE=; h=Date:From:Reply-To:To:CC:Subject:References:In-Reply-To; b=kKlnEilMFoBp6ypCHlEyVm+/zRqI8TZWGRk8kDZjvaiPiedJxOV3asW7mkABQ/zMf SRBt9FFpGPM4DMm8PYS6nQEg3DXaGQE/+wksjwtbI9jTo6iKrDC0tZ4auxXkbKQSe9 Al0IEhEzs6SPQT6zw/oxYJ+JYO1oZ6aplDydAuVc= Message-ID: <524C5495.3040800@delphij.net> Date: Wed, 02 Oct 2013 10:15:01 -0700 From: Xin Li Organization: The FreeBSD Project MIME-Version: 1.0 To: Edho Arief , d@delphij.net Subject: Re: zfs: the exponential file system from hell References: <52457A32.2090105@fsn.hu> <77F6465C-4E76-4EE9-88B5-238FFB4E0161@sarenet.es> <20130930234401.GA68360@neutralgood.org> <524B1EB6.2020003@delphij.net> In-Reply-To: X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: FreeBSD List X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: d@delphij.net List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Oct 2013 17:15:03 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 On 10/02/13 09:59, Edho Arief wrote: > On Wed, Oct 2, 2013 at 4:12 AM, Xin Li > wrote: >> >> I don't think 'zfs list' reports the "right" numbers either: >> there is no notion of "available shared space between this, this >> and this file systems". The underlying problem is that it's >> always hard to represent mutli-dimensional value in a linear >> manner, to do it, we would need to create something new. >> > > Considering df output for UFS is never `size = used + avail` > anyway, is there any problem with having df output for zfs to: > > - size: total size (zpool-wide, sans redundancy) - used: specific > filesystem usage - avail: total available space > > ? This doesn't solve OP's problem... Cheers, - -- Xin LI https://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.21 (FreeBSD) iQEcBAEBCgAGBQJSTFSVAAoJEG80Jeu8UPuzMboIAJQgYmPGMgNwkTvPOMJlkQk8 C7VM8LfnMYxXxtNfaAPt9ccJ0fU5Ib9n9z7dQFN0IuE5nQMUEAcTpiNs+lOi5Ot2 GWvRx0+Sj2mFConHT2QuXxsNSGWI5CfcLJ4oQ0RCmBCxXpI6dvD6H/L1xWq1phYN bneWbd0saCWIU+Bbiv5xvdR1JyPg7StB7R+/JrtlM5npPtFSo3EVkhyBh+G9jKop UZLGrwDgEdl7Vc06rQh+3ee9eP11o0Mm52NJPdAbCD0EuFJzgzn7psiQVZaDLYJr lYOhLqww+8R9/wZgp7XWxpTL0aOaZ+EI9NVsxfRFH7Wa0bE9BrF/0RAaZo3/M6s= =yRY2 -----END PGP SIGNATURE-----