From owner-freebsd-questions@FreeBSD.ORG Sun Aug 9 08:03:31 2009 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 3C48010656A3 for ; Sun, 9 Aug 2009 08:03:31 +0000 (UTC) (envelope-from comp.john@googlemail.com) Received: from mail-fx0-f224.google.com (mail-fx0-f224.google.com [209.85.220.224]) by mx1.freebsd.org (Postfix) with ESMTP id C0C038FC16 for ; Sun, 9 Aug 2009 08:03:30 +0000 (UTC) Received: by fxm24 with SMTP id 24so2610305fxm.36 for ; Sun, 09 Aug 2009 01:03:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=XFNwJiAxbFspT5Ra4g+q6K6drfvvP0Folqqet4r/a+U=; b=g1kBgc/C3sZl/SuA1ZJPSGrd+udHnTyKUhywl9wQ9csN/mBy+GxmwZWwiLR9dtI/Zo YBSO8mZEUmrbZ9RUeB7V/H99BAwZYB9Y6MmrkawRnxeupfaRgD8Z2+maAJamTbIFyOvF 8nztZvsDIo9GvIsXtjJTGnE66rJv+54l2K+0o= DomainKey-Signature: a=rsa-sha1; c=nofws; d=googlemail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=H2PeUrIRw0rf5zpLqAHCe1UBXiP84hB+S56P686v3xM6DJWSRC9N9Cf6iNjOO6tgth VKkdxL+yoThwD5pDdFcJ7Pq4ywu5qMzX+05sbgrkc7NSCYXxTLR3As88ZQ1ZA2zOor+8 uhyt2mDNmTY62PA8vRgV42mhV3/hlRqyO7YO0= MIME-Version: 1.0 Received: by 10.223.111.71 with SMTP id r7mr611527fap.103.1249805009760; Sun, 09 Aug 2009 01:03:29 -0700 (PDT) In-Reply-To: References: Date: Sun, 9 Aug 2009 09:03:29 +0100 Message-ID: From: "John ." To: freebsd-questions@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: a (hopefully) simple newbie zfs query regarding available space X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 09 Aug 2009 08:03:31 -0000 2009/8/9 John . : > Hello list > > I followed instructions for ZFS on > http://wiki.freebsd.org/ZFSQuickStartGuide, substituting ad6 and ad10 > (two new SATA3 1TB disks) for da0 da1 and da2 in the instructions. I > was surprised to see only 993GB in /tank/. Is this expected, or is it > user error? Also, these disks are completely unformatted. I expected > to do a newfs or something similar, and for it to take a bit of time! > > This is on a running 7.2-STABLE amd64 system. It is only these two > disks that I want as ZFS, the rest are UFS2 > > cheers > -- > John > I think I might have answered my own questionj - seems we need 3 or more disks for raidz - (n-p)*x gives 1TB usable. reliability isn't that important, and they are new disks. I suppose ccd would be better in this scenario? -- John