From owner-freebsd-questions Mon Aug 5 21:10:22 2002 Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8653137B401 for ; Mon, 5 Aug 2002 21:10:14 -0700 (PDT) Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by mx1.FreeBSD.org (Postfix) with ESMTP id 0E99043EAC for ; Mon, 5 Aug 2002 21:07:45 -0700 (PDT) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id C55A581461; Tue, 6 Aug 2002 13:13:26 +0930 (CST) Date: Tue, 6 Aug 2002 13:13:26 +0930 From: Greg 'groggy' Lehey To: Drew Raines Cc: freebsd-questions@freebsd.org Subject: Re: Striped Vinum on two drives Message-ID: <20020806034326.GO86771@wantadilla.lemis.com> References: <20020731211840.GN19920@mail.rain3s.net> <20020801010118.GM17787@wantadilla.lemis.com> <20020801150427.GJ26818@mail.rain3s.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20020801150427.GJ26818@mail.rain3s.net> User-Agent: Mutt/1.3.99i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Thursday, 1 August 2002 at 10:04:27 -0500, Drew Raines wrote: > Greg 'groggy' Lehey wrote: >> >> On Wednesday, 31 July 2002 at 16:18:40 -0500, Drew Raines wrote: >>> I have a machine with two hard drives: >>> >>> ad0 Maxtor 13 GB >>> da0 Fujitsu 36 GB >>> >>> I'd like to create root, swap, and usr partitions on the >>> beginning of ad0, and have the rest of the drive, as well as >>> all of da0 be one giant 45 GB filesystem. Something like: >>> >>> ad0 / >>> swap >>> /usr >>> /bigfs >>> da0 /bigfs (cont.) > > [...] > >> No, I'd consider this a fairly typical application. > > [...] > >>> Also, *can* I do it? I just want the two spindles to look >>> like one disk, striping the data accordingly. >> >> Yes, you can do that. But given the discrepancy in size >> between your disks, you might find it more useful to >> concatenate them. > > OK. I've done that, but I have a few questions. > > (1) Where did my space on /bigfs go? > > Filesystem 1K-blocks Used Avail Capacity Mounted on > /dev/da0s1a 99742 33574 58190 37% / > /dev/da0s1e 3096462 81006 2767740 3% /usr > procfs 4 4 0 100% /proc > /dev/vinum/1 43187825 1 39732798 0% /bigfs > > Does it really take 3.5 GB for Vinum to store information? No. > I thought it was 265 blocks. It doesn't store anything in individual volumes. It's outside the volumes in the drive, and yes, it's a total of 265 sectors. What you're seeing here is the file system, not Vinum. UFS keeps 9% of the space for overflow. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message