From owner-freebsd-questions@FreeBSD.ORG Tue Dec 8 19:43:44 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 1C3941065670 for ; Tue, 8 Dec 2009 19:43:44 +0000 (UTC) (envelope-from psteele@maxiscale.com) Received: from server505.appriver.com (server505c.appriver.com [98.129.35.7]) by mx1.freebsd.org (Postfix) with ESMTP id D7AF68FC08 for ; Tue, 8 Dec 2009 19:43:43 +0000 (UTC) X-Policy: GLOBAL - maxiscale.com X-Policy: GLOBAL - maxiscale.com X-Primary: psteele@maxiscale.com X-Note: This Email was scanned by AppRiver SecureTide X-ALLOW: psteele@maxiscale.com ALLOWED X-Virus-Scan: V- X-Note: Spam Tests Failed: X-Country-Path: UNITED STATES->UNITED STATES->UNITED STATES X-Note-Sending-IP: 98.129.23.14 X-Note-Reverse-DNS: ht01.exg5.exghost.com X-Note-WHTLIST: psteele@maxiscale.com X-Note: User Rule Hits: X-Note: Global Rule Hits: 112 113 114 115 119 120 131 218 X-Note: Mail Class: ALLOWEDSENDER X-Note: Headers Injected Received: from [98.129.23.14] (HELO ht01.exg5.exghost.com) by server505.appriver.com (CommuniGate Pro SMTP 5.2.14) with ESMTPS id 19125674; Tue, 08 Dec 2009 13:43:41 -0600 Received: from mbx03.exg5.exghost.com ([169.254.1.164]) by ht01.exg5.exghost.com ([98.129.23.14]) with mapi; Tue, 8 Dec 2009 13:43:42 -0600 From: Peter Steele To: Polytropon Date: Tue, 8 Dec 2009 13:43:41 -0600 Thread-Topic: How do I create large partitions in FreeBSD? Thread-Index: Acp4PI0564h8dLBaR4WFcBtzAW5QDgAAHxSw Message-ID: <7B9397B189EB6E46A5EE7B4C8A4BB7CB33D0D4C3@MBX03.exg5.exghost.com> References: <7B9397B189EB6E46A5EE7B4C8A4BB7CB33D0D44A@MBX03.exg5.exghost.com> <20091208195424.850e8363.freebsd@edvax.de> <7B9397B189EB6E46A5EE7B4C8A4BB7CB33D0D498@MBX03.exg5.exghost.com> <20091208202749.d3f3b697.freebsd@edvax.de> In-Reply-To: <20091208202749.d3f3b697.freebsd@edvax.de> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Cc: "freebsd-questions@freebsd.org" Subject: RE: How do I create large partitions in FreeBSD? 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: Tue, 08 Dec 2009 19:43:44 -0000 >Excuse me, you're mixing up terminology here. Let me explain: > >A SLICE is what "Windows" calls a "DOS primary partition", often just name= d a "partition". Yes, I know what a BSD slice is compared to a BSD partition. Considering th= at fdisk uses "partition" interchangeably in cases with "slice", I often do= as well. I guess it can be confusing if one isn't careful with context. >I'm not sure if I understood you correctly. You won't need to create three= slices, just one slice, containin three partitions. We already have a configuration in place on our smaller 1U boxes which are = divided into three slices, one for the OS (with 2 partitions), one for swap= , and the third slice for data. The third slice is divided into two partiti= ons, one UFS and one raw. The first two slices are gmirrored, the third sli= ce is not. For consistency we want to use the same slice configuration for these large= drives. We don't *have* to do it this way but it simplifies things for our= legacy code. We're not using any gmirroring on these raid boxes of course,= and we only need one partition on the third slice (no raw partition) but o= therwise the layout will largely be the same.