From owner-freebsd-questions Tue Jul 30 14:40:40 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 1F61137B400 for ; Tue, 30 Jul 2002 14:40:38 -0700 (PDT) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 78CAE43E42 for ; Tue, 30 Jul 2002 14:40:37 -0700 (PDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.5/8.12.5) id g6ULeZQD062446; Tue, 30 Jul 2002 16:40:35 -0500 (CDT) (envelope-from dan) Date: Tue, 30 Jul 2002 16:40:35 -0500 From: Dan Nelson To: Oliver Humpage Cc: freebsd-questions@FreeBSD.ORG, oliver@watershed.co.uk Subject: Re: Odd vinum config Message-ID: <20020730214035.GF95493@dan.emsphone.com> References: <58E35A6A-A404-11D6-8DE2-000A2795CB26@blueyonder.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <58E35A6A-A404-11D6-8DE2-000A2795CB26@blueyonder.co.uk> X-OS: FreeBSD 5.0-CURRENT X-message-flag: Outlook Error 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 In the last episode (Jul 30), Oliver Humpage said: > Is it possible to set up a mirrored volume in vinum, but only set *one* > of the plexes to be used for reading? > > The reason I'm asking is that I'm making a Network Attached Storage box, > which I think should have SCSI disks and RAID 1. Unfortunately, our > budget doesn't stretch to 8 73GB SCSI drives :-) So I wondered about > having 4 73GB SCSI drives concatenated for the main storage space, and 2 > 160GB IDE drives (also concatenated) as a RAID 1 mirror. However, I > don't want to put too much load on the IDE drives, so I thought perhaps > vinum could be set *not* to read from them, merely to write (although, > if a SCSI drive failed, of course it would have to read from them!). man vinum, search for readpol -- Dan Nelson dnelson@allantgroup.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message