From owner-freebsd-questions Sat Aug 17 3:51:15 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 4761237B400 for ; Sat, 17 Aug 2002 03:51:12 -0700 (PDT) Received: from smtp.infracaninophile.co.uk (happy-idiot-talk.infracaninophile.co.uk [81.2.69.218]) by mx1.FreeBSD.org (Postfix) with ESMTP id 12D4B43E4A for ; Sat, 17 Aug 2002 03:51:11 -0700 (PDT) (envelope-from m.seaman@infracaninophile.co.uk) Received: from happy-idiot-talk.infracaninophile.co.uk ([IPv6:::1]) by smtp.infracaninophile.co.uk (8.12.5/8.12.5) with ESMTP id g7HAp9Yk022277; Sat, 17 Aug 2002 11:51:09 +0100 (BST) (envelope-from matthew@happy-idiot-talk.infracaninophile.co.uk) Received: (from matthew@localhost) by happy-idiot-talk.infracaninophile.co.uk (8.12.5/8.12.5/Submit) id g7HAp3t8022276; Sat, 17 Aug 2002 11:51:03 +0100 (BST) Date: Sat, 17 Aug 2002 11:51:03 +0100 From: Matthew Seaman To: Jesse Geddis Cc: freebsd-questions@FreeBSD.ORG Subject: Re: system on raid Message-ID: <20020817105103.GC16764@happy-idiot-talk.infracaninophi> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.1i 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 Sat, Aug 17, 2002 at 02:03:52AM -0700, Jesse Geddis wrote: > historically it has been my understanding that you never install the > 'system' (i.e. the root filesystem etc.) on a raid. is this still the case > and why? That is still the case at the moment. You can use a hardware raid system which presents the raid area to the OS as a synthetic disk drive, but you can't (yet) use vinum(8) or other OS level volume management sytem reliably. The reason why is fairly simple: the system bootstap mechanism doesn't understand raid systems well enough to be able to operate correctly. Although the reason is simple, the solution is apparently not. It's a work in progress. Cheers, Matthew -- Dr Matthew J Seaman MA, D.Phil. 26 The Paddocks Savill Way Tel: +44 1628 476614 Marlow Fax: +44 0870 0522645 Bucks., SL7 1TH UK To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message