From owner-freebsd-questions Mon May 14 16:35: 7 2001 Delivered-To: freebsd-questions@freebsd.org Received: from wantadilla.lemis.com (wantadilla.lemis.com [192.109.197.80]) by hub.freebsd.org (Postfix) with ESMTP id 78E8637B42C for ; Mon, 14 May 2001 16:34:56 -0700 (PDT) (envelope-from grog@lemis.com) Received: by wantadilla.lemis.com (Postfix, from userid 1004) id E8C706ACBC; Tue, 15 May 2001 09:04:53 +0930 (CST) Date: Tue, 15 May 2001 09:04:53 +0930 From: Greg Lehey To: Wes Peters Cc: Dan Phoenix , FreeBSD Questions Subject: Re: vinum on 2 ide drives? Message-ID: <20010515090453.M17428@wantadilla.lemis.com> References: <20010510125406.I56501@wantadilla.lemis.com> <3AFDD094.7C8CE50F@softweyr.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <3AFDD094.7C8CE50F@softweyr.com>; from wes@softweyr.com on Sat, May 12, 2001 at 06:08:52PM -0600 Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Saturday, 12 May 2001 at 18:08:52 -0600, Wes Peters wrote: > Greg Lehey wrote: >> >> On Wednesday, 9 May 2001 at 19:51:05 -0700, Dan Phoenix wrote: >>> >>> ad1: 58644MB [119150/16/63] at ata0-slave UDMA33 > > Slave? Performance? Not according to everything I know about IDE/ATA > drives. I don't know any difference between the performance of slave drives and of master drives. The problem is that most drives can't transfer in parallel (though I believe that, with the correct driver parameters, this particular drive can do so. I didn't comment on this because it's probably the best configuration I can think of. From a Vinum standpoint, the drives are on different controllers. Access to the Vinum volumes and the primary master drive will, of course, be impacted. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message