From owner-freebsd-questions@FreeBSD.ORG Fri Apr 17 14:33:49 2015 Return-Path: Delivered-To: questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 7387FDEC for ; Fri, 17 Apr 2015 14:33:49 +0000 (UTC) Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mout.gmx.net", Issuer "TeleSec ServerPass DE-1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1923EAEB for ; Fri, 17 Apr 2015 14:33:48 +0000 (UTC) Received: from [192.168.0.143] ([95.91.226.254]) by mail.gmx.com (mrgmx001) with ESMTPSA (Nemesis) id 0MIe0O-1YlJC61rgG-002GLu; Fri, 17 Apr 2015 16:33:46 +0200 Message-ID: <553119C9.1020302@gmx.de> Date: Fri, 17 Apr 2015 16:33:45 +0200 From: "lokadamus@gmx.de" User-Agent: Mozilla/5.0 (X11; FreeBSD i386; rv:31.0) Gecko/20100101 Thunderbird/31.6.0 MIME-Version: 1.0 To: Alex Merritt CC: questions@freebsd.org Subject: Re: Disk space allocation References: <553113AD.6000502@gmx.de> In-Reply-To: Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:9EV/ikurj3sfKMxo/q8ObU2IFdKVlEoaLMjK7a+CPT7ytjWtst4 3QK4vS2F051zmgXU5hoXHoHWaE658DsNTGp+VVYayzbQy9F/I7AiSOqS3/nhN1YTu6buUE8 Di6ycZSsqEBiSzNG40tAMqoBA1UxfGcZ7ilzkqS+fWxqATmCJuWGIWEi7hZcW7OX6Iygt0/ it4/rPBtTC1fJfsWQpZjQ== X-UI-Out-Filterresults: notjunk:1; X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Apr 2015 14:33:49 -0000 On 04/17/15 16:25, Alex Merritt wrote: > On Fri, Apr 17, 2015 at 10:07 AM, lokadamus@gmx.de > wrote: > >> On 04/15/15 20:45, Alex Merritt wrote: >>> Hello, >>> >>> File systems such as ext3/4 reserve some amount of space for >>> allocation only by privileged users, which can be adjusted, >>> e.g. >>> >>> tune2fs -m reserved-blocks-percentage /dev/sdaN >>> >>> I installed a BSD system using Virtualbox, giving it an 8GB >>> disk, but >> 'df' >>> shows an aggregate size among all mount points to be less than >>> the capacity. The minfree parameter to tunefs defaults to 8% >>> (see below) but >> 8% >>> does not account for the difference in 8189MB capacity vs sum >>> of ca. 6G among all file systems (shown by df). There's ca. 27% >>> of capacity unavailable. >>> >>> What could I be missing here? >>> >>> # fdisk [...] The data for partition 1 is: sysid >>> 165,(DragonFly/FreeBSD/NetBSD/386BSD) start 63, size 16773057 >>> (8189 Meg), flag 80 (active) beg: cyl 0/ head 1/ sector 1; end: >>> cyl 1023/ head 255/ sector 63 >>> >>> # dumpfs /dev/ad0s1a | grep minfree minfree 8% optim time >>> maxcontig 15 maxbpg 2048 >>> >>> # df -hT Filesystem Type Size Used Avail Capacity >>> Mounted on /dev/serno/--.s1a ufs 620M 140M 431M >>> 24% / devfs devfs 1.0K 1.0K 0B >>> 100% /dev /dev/serno/--.s1d ufs 2.2G 396K 2.0G >>> 0% /home /dev/serno/--.s1e ufs 248M 10K 228M >>> 0% /tmp /dev/serno/--.s1f ufs 2.6G 1.5G 882M >>> 64% /usr /dev/serno/--.s1g ufs 248M 213M 15M >>> 93% /var procfs procfs 4.0K 4.0K 0B >>> 100% /proc >>> >>> Thanks! Alex _______________________________________________ >>> freebsd-questions@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-questions To >>> unsubscribe, send any mail to " >> freebsd-questions-unsubscribe@freebsd.org" >>> >> Which filesystem and FreeBSD Version you are using? UFS/ UFS2 >> have an option, that in default setting 10% are reserved. So you >> can use your partition with 110%. >> >> Greetings >> > > I am using DragonFly BSD, and "geom" does not seem to be in the > package repository. I mailed here assuming it is not a > distro-specific characteristic. > > The file system is UFS. What do you mean use it with 110%? > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions To > unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" > Well, you can fill up your system with 110% Data using before you get an error of full filesystem. This is reserved space for error handling. But it is an old technic for old HDDs. Look at 8.22: https://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/disks.html#disk-more-than-full This value can be changed on installation. If it can be changed on a running system, i don't know. I didn't test it. Greeting