From owner-freebsd-fs@FreeBSD.ORG Thu Oct 3 09:45:26 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 72135B3F for ; Thu, 3 Oct 2013 09:45:26 +0000 (UTC) (envelope-from ronald-freebsd8@klop.yi.org) Received: from cpsmtpb-ews07.kpnxchange.com (cpsmtpb-ews07.kpnxchange.com [213.75.39.10]) by mx1.freebsd.org (Postfix) with ESMTP id DA295223E for ; Thu, 3 Oct 2013 09:45:25 +0000 (UTC) Received: from cpsps-ews14.kpnxchange.com ([10.94.84.181]) by cpsmtpb-ews07.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Thu, 3 Oct 2013 11:44:15 +0200 Received: from CPSMTPM-TLF103.kpnxchange.com ([195.121.3.6]) by cpsps-ews14.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Thu, 3 Oct 2013 11:44:15 +0200 Received: from sjakie.klop.ws ([212.182.167.131]) by CPSMTPM-TLF103.kpnxchange.com with Microsoft SMTPSVC(7.5.7601.17514); Thu, 3 Oct 2013 11:44:15 +0200 Received: from 212-182-167-131.ip.telfort.nl (localhost [127.0.0.1]) by sjakie.klop.ws (Postfix) with ESMTP id F043C29B5; Thu, 3 Oct 2013 11:44:14 +0200 (CEST) Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes To: "Edho Arief" , d@delphij.net, "Xin Li" 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> <524C5495.3040800@delphij.net> Date: Thu, 03 Oct 2013 11:44:14 +0200 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: "Ronald Klop" Message-ID: In-Reply-To: <524C5495.3040800@delphij.net> User-Agent: Opera Mail/12.16 (FreeBSD) X-OriginalArrivalTime: 03 Oct 2013 09:44:15.0345 (UTC) FILETIME=[1F626610:01CEC01D] X-RcptDomain: freebsd.org Cc: FreeBSD List X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 03 Oct 2013 09:45:26 -0000 On Wed, 02 Oct 2013 19:15:01 +0200, Xin Li wrote: > -----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... The OP does not even have a real problem. It is just that the available diskspace is filled by more sources than expected. Which is just a sysadmin thing. The OP was just curious how it worked because he did not expect this. You can't throw zpool+zfs at a job and expect everything to be the same as your previous multiple ufs partitions. Or think: "Wow, all my zfs filesystems are as big as the total pool. I magically gained space!" and than explain about df. Ronald. > > 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----- > _______________________________________________ > freebsd-fs@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-fs > To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org"