From owner-cvs-src@FreeBSD.ORG Fri Sep 17 14:42:15 2004 Return-Path: Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7FE1C16A4CE; Fri, 17 Sep 2004 14:42:15 +0000 (GMT) Received: from pooker.samsco.org (pooker.samsco.org [168.103.85.57]) by mx1.FreeBSD.org (Postfix) with ESMTP id CDEE243D39; Fri, 17 Sep 2004 14:42:12 +0000 (GMT) (envelope-from scottl@samsco.org) Received: from [192.168.254.11] (junior-wifi.samsco.home [192.168.254.11]) (authenticated bits=0) by pooker.samsco.org (8.12.11/8.12.10) with ESMTP id i8HEfhae012390; Fri, 17 Sep 2004 08:41:43 -0600 (MDT) (envelope-from scottl@samsco.org) Message-ID: <414AF776.2020708@samsco.org> Date: Fri, 17 Sep 2004 08:40:54 -0600 From: Scott Long User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.2) Gecko/20040831 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Ceri Davies References: <200409162132.i8GLWDpF050910@repoman.freebsd.org> <20040916213937.GF30151@darkness.comp.waw.pl> <20040916214602.GG30151@darkness.comp.waw.pl> <20040916220959.GA45451@gothmog.gr> <20040916224536.GI30151@darkness.comp.waw.pl> <20040917143400.GT1538@submonkey.net> In-Reply-To: <20040917143400.GT1538@submonkey.net> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, hits=0.0 required=3.8 tests=none autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on pooker.samsco.org cc: cvs-src@FreeBSD.org cc: src-committers@FreeBSD.org cc: Pawel Jakub Dawidek cc: Giorgos Keramidas cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/sys mdioctl.h src/sys/dev/md md.csrc/sbin/mdconfig Makefile mdconfig.8 mdconfig.c X-BeenThere: cvs-src@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: CVS commit messages for the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Sep 2004 14:42:15 -0000 Ceri Davies wrote: > On Fri, Sep 17, 2004 at 12:45:36AM +0200, Pawel Jakub Dawidek wrote: > >>On Fri, Sep 17, 2004 at 01:09:59AM +0300, Giorgos Keramidas wrote: >>+> > +> Filesystem Size Used Avail Capacity Mounted on >>+> > +> [...] >>+> > +> /dev/md0 15T 249M 14T 0% /mnt >>+> > +> /dev/md1 11T 128K 10T 0% /mnt2 >>+> > >>+> > ragepxe:root:~# mdconfig -l -u 0 >>+> > md0 swap 15T >>+> > ragepxe:root:~# mdconfig -l -u 1 >>+> > md1 vnode 11T >>+> >>+> I think most of us were already jealous enough by seeing the first post :-P >>+> (Thanks for the extra md coolness these commits made possible :-)) >> >>Jealous about what?:) You know, that you can setup 15TB of md(4) swap-backed >>device on 512MB swap partition, right? > > > What happens if you try to fill them? > > Ceri The advantage of what Pawel has done is that you can simulate very large disks for the purpose of debugging other utlities like sysinstall, bsdlabel, fdisk, newfs, growfs, etc. Some of these programs have limitations that cannot be changed, but they can be verified and fixed to have sane behaviour. Scott