From owner-freebsd-fs@FreeBSD.ORG Mon Dec 13 13:08:36 2010 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 408B31065696 for ; Mon, 13 Dec 2010 13:08:36 +0000 (UTC) (envelope-from zeus@relay.ibs.dn.ua) Received: from relay.ibs.dn.ua (relay.ibs.dn.ua [91.216.196.25]) by mx1.freebsd.org (Postfix) with ESMTP id B206A8FC0A for ; Mon, 13 Dec 2010 13:08:35 +0000 (UTC) Received: from relay.ibs.dn.ua (localhost [127.0.0.1]) by relay.ibs.dn.ua with ESMTP id oBDD8X2n098431; Mon, 13 Dec 2010 15:08:33 +0200 (EET) Received: (from zeus@localhost) by relay.ibs.dn.ua (8.14.4/8.14.4/Submit) id oBDD8X3f098430; Mon, 13 Dec 2010 15:08:33 +0200 (EET) Date: Mon, 13 Dec 2010 15:08:33 +0200 From: Zeus V Panchenko To: Ivan Voras Message-ID: <20101213130833.GF80898@relay.ibs.dn.ua> References: <20101209141412.GA62013@relay.ibs.dn.ua> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.2.3i X-Operating-System: FreeBSD 8.1-RELEASE X-Editor: GNU Emacs 23.2.1 Cc: freebsd-fs@freebsd.org Subject: Re: what is the best way to use free space on several boxes? X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: zeus@ibs.dn.ua List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Dec 2010 13:08:36 -0000 Ivan Voras (ivoras@freebsd.org) [10.12.09 17:15] wrote: > > From one side, you can simply create large files within the existing > file systems (e.g. a 300 GB file on each) to serve as virtual disks, > export them with iSCSI, import them on another box and create a ZFS > raidz volume out of those drives - you get a small amount of fault > tolerance here. The bad sides are: you need to have a large "fixed > space" file on each of the machines (you can theoretically create sparse > files but the downsides are even worse), only one box can see the > consolidated space (the ZFS volume), what if i set cluster of FreeNAS-es and export to it the files as ZFS space? -- Zeus V. Panchenko GMT+2 (EET)